A strong saddle tool box gives truck owners lockable, weather-sealed storage while preserving useful bed space; the right choice depends on truck size, desired capacity, and how much clearance you need. This lineup includes 10 Weather Guard models: mostly aluminum boxes for full-size trucks, plus steel alternatives and a smaller mid-size option. Several provide 11 cubic feet of capacity, while the mid-size model offers 8 cubic feet.
Low-profile designs suit drivers who want storage without an unnecessarily tall box, and the extra-wide model adds width rather than a stated capacity figure. Check the listed dimensions against your bed before choosing: model labels alone do not confirm fit.
Our ranking weighs the stated specifications and features, not hands-on testing.
The Weather Guard 121-52-04 Saddle Box leads as the Best Overall because it combines a low-profile design with 11 cubic feet of capacity, aluminum construction, a tamper-resistant lock, and a full weather seal. Its listed dimensions are 72 by 20 by 18 inches, and accessory tray, tie-downs, and installation hardware are included. For truck owners seeking a different finish, material, or bed size, the lineup also includes clear-finish aluminum, steel, extra-wide, and mid-size options.
Our Top Picks
Best OverallWeather Guard 121-52-04 Saddle Box
This low-profile aluminum box lists 11 cubic feet, a full weather seal, and included accessory tray, tie-downs, and installation hardware.
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Gloss Black FinishWeather Guard 121-5-04 Saddle Box
The full-size low-profile aluminum model offers 11 cubic feet, a 90-degree opening, weather seal, and tamper-resistant push-button lock.
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Full Deep DesignWeather Guard 123-5-03 Saddle Box
Its full-deep aluminum body measures 72 by 20.5 by 18.5 inches and is described with a push-button lock and full weather seal.
View on Amazon- Extra-Wide Design Weather Guard 117-52-03 Saddle Box
- Mid-Size Fit Weather Guard 131-5-04 Saddle Box
Compare saddle tool box options
| # | Product | Material | Capacity | Dimensions | Buy |
|---|---|---|---|---|---|
| 1 | 1. Weather Guard 121-52-04 Saddle BoxBest Overall | Aluminum | — | 72"L x 20"W x 18"H | View on Amazon |
| 2 | 2. Weather Guard 121-5-04 Saddle BoxGloss Black Finish | Aluminum | 11 cubic feet | 72"L x 20"W x 18"H | View on Amazon |
| 3 | 3. Weather Guard 127-52-04 Saddle BoxKeyed fleet storage | Aluminum | 11 cubic feet | 72"L x 20"W x 18"H | View on Amazon |
| 4 | 4. Weather Guard 123-5-03 Saddle BoxFull Deep Design | Aluminum | — | 72"L x 20.5"W x 18.5"H | View on Amazon |
| 5 | 5. Weather Guard 117-52-03 Saddle BoxExtra-Wide Design | Aluminum | — | 72"L x 27.5"W x 18.5"H | View on Amazon |
| 6 | 6. Weather Guard 121-0-04 Saddle BoxClear-finish low-profile storage | Aluminum | — | 72"L x 20"W x 18"H | View on Amazon |
| 7 | 7. Weather Guard 131-5-04 Saddle BoxMid-Size Fit | Aluminum | 8 cubic feet | 62.25"L x 20.25"W x 18.62"H | View on Amazon |
| 8 | 8. Weather Guard 120-5-04 Saddle BoxSteel low-profile storage | Alloy Steel | 11 cubic feet | — | View on Amazon |
| 9 | 9. Weather Guard 120-5-03 Saddle BoxSteel low-profile option | Steel | — | — | View on Amazon |
| 10 | 10. Weather Guard 121-52-03 Saddle BoxKeyed fleet low-profile box | Aluminum | 10.2 cubic feet | 72"L x 20.5"W x 18.5"H | View on Amazon |
Detailed Reviews: Best Saddle Tool Boxes For Trucks

#1 · Best Overall
1. Weather Guard 121-52-04 Saddle Box
- Material: Aluminum
- Dimensions: 72"L x 20"W x 18"H
Best for: Low-profile keyed storage.
Why it ranks #1: This low-profile aluminum box lists 11 cubic feet, a full weather seal, and included accessory tray, tie-downs, and installation hardware.
The included accessory tray, tie-downs, and installation hardware give this low-profile aluminum saddle box a useful set of supplied components. Its 11-cubic-foot capacity, 72-by-20-by-18-inch dimensions, and 1KEY ULTRALOCK option make it a practical choice for full-size truck owners organizing tools.
Saddle-box placement is described as preserving maximum bed clearance, while the low-profile dimensions help clarify how this 11-cubic-foot box may sit in a truck bed. The full weather seal helps protect tools from the elements, and the tamper-resistant push-button lock adds security. Its 90-degree opening supports convenient access, while the included accessory tray can help separate smaller items; tie-downs and installation hardware are also listed among the included components.
- 11 cubic feet of storage capacity
- Accessory tray, tie-downs, and installation hardware included
- Full weather seal and tamper-resistant push-button lock
- 90-degree opening for convenient access
- The listed 76.5-pound weight may make solo handling during installation difficult.
Skip it if you need a box weighing less than 76.5 pounds; the Weather Guard Model 131-5-04 is listed at 67 pounds.
This suits full-size truck owners seeking low-profile storage with included organizing and installation components. Its 72-inch length and listed 76.5-pound weight are important bed-fit and handling considerations.
Full product details
| Brand | Weather Guard |
|---|---|
| Color | Textured-Matte-Black |
| Included Components | Accessory Tray, Tie Downs, Installation Hardware |
| Dimensions | 72"L x 20"W x 18"H |
| Item Weight | 76.5 pounds |
| Manufacturer | WEATHER GUARD |
| Part Number | 121-52-04 |
| Manufacturer Warranty Description | 15-ga body |
| Material | Aluminum |
| Model Number | 121-52-04 |
| Special Features | Lockable, Rust Resistant |
| Special Feature | Lockable, Rust Resistant |
| Style | Saddle Box |
| Style Name | Saddle Box |
Listed on Amazon as: Weather Guard Model 121-52-04 Saddle Box, Aluminum, Full Low Profile, Textured Matte Black, 11.0 cu ft
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#2 · Gloss Black Finish
2. Weather Guard 121-5-04 Saddle Box
- Material: Aluminum
- Capacity: 11 cubic feet
- Dimensions: 72"L x 20"W x 18"H
Best for: Low-profile full-size storage.
Why it ranks #2: The full-size low-profile aluminum model offers 11 cubic feet, a 90-degree opening, weather seal, and tamper-resistant push-button lock.
A 90-degree-opening lid gives this low-profile Weather Guard saddle box practical access to its 11 cubic feet without requiring a wide lid swing. Its aluminum body measures 72 by 20 by 18 inches, and the one-key system can simplify managing multiple compatible boxes across a truck or fleet.
The low-profile form is identified for full-size trucks, while saddle-box placement is described as preserving maximum bed clearance. A full weather seal helps protect tools from the elements, and the tamper-resistant push-button lock adds a security measure. The optimized latching system requires less force to close, a useful detail when accessing the box repeatedly during work; enhanced tie-down buckles offer larger clearance for universal or other tie-downs.
- 11 cubic feet in a low-profile saddle-box format
- Full weather seal helps protect contents from the elements
- Optimized latching system requires less force to close
- Enhanced tie-down buckles provide larger clearance
- At 76.5 pounds, it is a substantial box to handle during installation.
Skip it if you need a lighter box to handle; the Weather Guard Model 131-5-04 is listed at 67 pounds.
Choose this for a full-size truck needing low-profile, weather-sealed storage and frequent, easier lid operation. Its 72-inch length and 76.5-pound listed weight are practical fit and installation considerations.
Full product details
| Brand | Weather Guard |
|---|---|
| Capacity | 11 cubic feet |
| Color | Gloss Black |
| Included Components | item |
| Dimensions | 72"L x 20"W x 18"H |
| Item Weight | 76.5 pounds |
| Manufacturer | Weather Guard |
| Part Number | 121-5-04 |
| Manufacturer Warranty Description | 15-ga body |
| Material | Aluminum |
| Model Number | 121-5-04 |
| Special Features | Lockable, Resistant to the Elements |
| Special Feature | Lockable, Resistant to the Elements |
| Style | Saddle Box |
| Style Name | Saddle Box |
Listed on Amazon as: Weather Guard Model 121-5-04 Saddle Truck Box, Aluminum, for Full Size Trucks, Low Profile, Gloss Black, 11.0 cu ft Capacity
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#3
3. Weather Guard 127-52-04 Saddle Box
- Material: Aluminum
- Capacity: 11 cubic feet
- Dimensions: 72"L x 20"W x 18"H
Best for: Keyed fleet storage.
Why it ranks #3: This full-standard aluminum box provides 11 cubic feet in a 72-by-20-by-18-inch body, with a weather seal and textured matte-black finish.
The 1KEY ULTRALOCK lets one key work across multiple Weather Guard boxes, simplifying access when a truck or fleet carries several boxes. This full-size aluminum saddle box adds 11 cubic feet of storage, a full weather seal, and a tamper-resistant push-button lock for protected, organized truck-bed storage.
At 72 by 20 by 18 inches, the box provides 11 cubic feet while saddle-box placement preserves maximum bed clearance, according to the supplied description. The 90-degree cover opening supports access from the side of the truck, and the full weather seal helps protect stored tools from the elements. A tamper-resistant push-button lock adds a security measure, while the textured matte black finish has a Clear ARMOR TUF powder coat for a durable exterior.
- 11 cubic feet of storage capacity
- 1KEY ULTRALOCK can key multiple boxes alike
- Full weather seal helps shield contents from the elements
- 90-degree opening and tamper-resistant push-button lock
- The listed 72-inch length and 20-inch width require substantial bed space.
Skip it if you need a shorter box for a mid-size truck; the Weather Guard Model 131-5-04 measures 62.25 inches long.
This suits full-size truck owners and fleet users who want keyed-alike storage, weather protection, and convenient access. Its 72-inch length and 11-cubic-foot capacity make it a substantial box, so check available bed space.
Full product details
| Brand | Weather Guard |
|---|---|
| Capacity | 11 cubic feet |
| Color | Textured-Matte-Black |
| Included Components | item |
| Dimensions | 72"L x 20"W x 18"H |
| Manufacturer | Weather Guard |
| Part Number | 127-52-04 |
| Material | Aluminum |
| Model Number | 783965071239 |
| Special Features | Lockable, Rust Resistant |
| Special Feature | Lockable, Rust Resistant |
Listed on Amazon as: Weather Guard Model 127-52-04 Saddle Box, Aluminum, Full Standard, Textured Matte Black, 11.0 cu ft
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#4 · Full Deep Design
4. Weather Guard 123-5-03 Saddle Box
- Material: Aluminum
- Dimensions: 72"L x 20.5"W x 18.5"H
Best for: Deep weather-sealed storage.
Why it ranks #4: Its full-deep aluminum body measures 72 by 20.5 by 18.5 inches and is described with a push-button lock and full weather seal.
A full weather seal is central to this Weather Guard full-deep saddle box, helping shield tools and equipment from the elements. The 72-by-20.5-by-18.5-inch aluminum box combines that protection with a tamper-resistant push-button lock and a lid that opens to 90 degrees for convenient access.
The full-deep format provides a 20.5-inch width and 18.5-inch height, dimensions that buyers can use when planning storage for tools and equipment. Its aluminum construction keeps the listed material straightforward, while the full weather seal helps protect stored items from exposure. The 90-degree opening makes reaching inside more convenient, and the tamper-resistant push-button lock adds protection when the truck is unattended. The supplied dimensions make bed-space planning especially relevant.
- Full weather seal helps guard stored items from the elements
- Tamper-resistant push-button lock
- 90-degree lid opening supports convenient access
- Aluminum body measures 72 by 20.5 by 18.5 inches
- The 20.5-inch width is larger than the 20-inch width listed for some low-profile models.
Skip it if you want a box listed at 20 inches wide; the Weather Guard Model 121-5-04 has that stated width.
This fits full-size truck owners prioritizing weather protection, lockable storage, and a wide-opening lid. Consider its 20.5-inch width and 18.5-inch height when arranging bed cargo and checking the space available.
Full product details
| Brand | Weather Guard |
|---|---|
| Color | Black |
| Dimensions | 72"L x 20.5"W x 18.5"H |
| Part Number | 123-5-03 |
| Material | Aluminum |
| Model Number | 123-5-03 |
Listed on Amazon as: Weather Guard Saddle Truck Tool Box Aluminum Full Deep Gloss Black
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#5 · Extra-Wide Design
5. Weather Guard 117-52-03 Saddle Box
- Material: Aluminum
- Dimensions: 72"L x 27.5"W x 18.5"H
Best for: Extra-wide tool storage.
Why it ranks #5: The extra-wide aluminum model measures 72 by 27.5 by 18.5 inches, offering a notably wider footprint than the standard-width listings.
The 27.5-inch width is the defining feature of this Weather Guard full extra-wide saddle box, giving buyers a broader storage footprint than a 20-inch-wide model. Its aluminum construction and 72-inch length suit truck owners prioritizing a wide tool-storage area, with corrosion resistance listed among its material features.
At 72 by 27.5 by 18.5 inches and 90 pounds, this model makes its extra-wide format clear in the specifications; the larger footprint can accommodate tools that benefit from a broader storage area. The aluminum is described as durable and corrosion-resistant, supporting use where material resilience matters. Its diamond-plate texture gives the matte-black box a distinct finish, though buyers should account for the listed width when planning bed space and cargo layout.
- 27.5-inch width provides an extra-wide storage footprint
- 72-inch length suits a full-size saddle-box layout
- Aluminum construction is described as corrosion-resistant
- Diamond-plate texture in textured matte black
- The 27.5-inch width takes more bed space than a 20-inch-wide box.
Skip it if you need to preserve more bed width; the Weather Guard Model 121-5-04 is listed at 20 inches wide.
This is for truck owners who value a wider storage footprint and corrosion-resistant aluminum construction. Its 27.5-inch width and 90-pound listed weight make bed layout and handling important considerations before choosing it.
Full product details
| Brand | Weather Guard |
|---|---|
| Color | Textured Matte Black |
| Dimensions | 72"L x 27.5"W x 18.5"H |
| Item Weight | 90 pounds |
| Part Number | 117-52-03 |
| Material | Aluminum |
| Material Features | Durable and Corrosion-Resistant |
| Special Features | Durability,Extra Wide |
| Recommended Uses | Aluminum |
| Special Feature | Durability,Extra Wide |
| Style | modern minimalist with diamond plate texture |
| Style Name | modern minimalist with diamond plate texture |
Listed on Amazon as: Weather Guard Saddle Truck Tool Box Aluminum Full Extra Wide Textured Matte Black
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#6
6. Weather Guard 121-0-04 Saddle Box
- Material: Aluminum
- Dimensions: 72"L x 20"W x 18"H
Best for: Clear-finish low-profile storage.
Why it ranks #6: This low-profile aluminum option lists 11 cubic feet and a clear finish, plus a tamper-resistant lock and full weather seal.
A clear ARMOR TUF powder coat distinguishes this low-profile aluminum saddle box while keeping its listed finish clear rather than black. It offers 11 cubic feet in a 72-by-20-by-18-inch format, with an accessory tray, tie-downs, installation hardware, and one-key locking compatibility for practical truck-bed organization.
The low-profile saddle-box format is described as preserving maximum bed clearance, and the 11-cubic-foot capacity provides room for tools and equipment. A full weather seal helps shield those contents from the elements, while the tamper-resistant push-button lock adds protection. The included accessory tray offers a way to separate smaller items, and tie-downs plus installation hardware are included. The clear finish and aluminum body make this a distinct option within the supplied lineup.
- 11 cubic feet in a low-profile saddle box
- Clear ARMOR TUF powder coat finish
- Accessory tray, tie-downs, and installation hardware included
- Full weather seal with tamper-resistant push-button lock
- The listed 76.5-pound weight makes handling during installation a consideration.
Skip it if you prefer a black finish; the Weather Guard Model 121-52-04 has a textured matte black finish.
Pick this for a full-size truck when a clear-finish aluminum box, organized storage, and weather protection fit your setup. Its 72-inch length and 76.5-pound weight merit consideration for bed space and installation.
Full product details
| Brand | Weather Guard |
|---|---|
| Color | Aluminum |
| Included Components | Accessory Tray, Tie Downs, Installation Hardware |
| Dimensions | 72"L x 20"W x 18"H |
| Item Weight | 76.5 pounds |
| Manufacturer | WEATHER GUARD |
| Part Number | 121-0-04 |
| Manufacturer Warranty Description | 15-ga body |
| Material | Aluminum |
| Model Number | 121-0-04 |
| Special Features | Lockable, Rust Resistant |
| Special Feature | Lockable, Rust Resistant |
| Style | Saddle Box |
| Style Name | Saddle Box |
Listed on Amazon as: Model 121-0-04 Saddle Box, Aluminum, Full Low Profile, Clear, 11.0 cu ft
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#7 · Mid-Size Fit
7. Weather Guard 131-5-04 Saddle Box
- Material: Aluminum
- Capacity: 8 cubic feet
- Dimensions: 62.25"L x 20.25"W x 18.62"H
Best for: Mid-size truck storage.
Why it ranks #7: The mid-size low-profile aluminum box lists 8 cubic feet and measures 62.25 by 20.25 by 18.62 inches.
Its 62.25-inch length and 8-cubic-foot capacity make this Weather Guard saddle box a mid-size option among the listed models. The aluminum body has a gloss-black finish, and its 1KEY ULTRALOCK system can simplify access when multiple Weather Guard boxes share a key.
The 62.25-by-20.25-by-18.62-inch dimensions and 8-cubic-foot capacity give buyers concrete figures for planning a mid-size truck bed and tool load. Saddle-box placement is described as preserving maximum bed clearance, while the 90-degree opening supports convenient access. A full weather seal helps protect stored equipment from the elements, and the tamper-resistant push-button lock adds security. The aluminum body and Clear ARMOR TUF powder coat finish complete the listed construction details.
- 8 cubic feet of capacity in a mid-size configuration
- 62.25-inch length is shorter than the listed 72-inch models
- Aluminum construction with gloss-black finish
- Full weather seal and tamper-resistant push-button lock
- Its 8-cubic-foot capacity is lower than the 11-cubic-foot full-size models listed.
Skip it if you need 11 cubic feet of storage; the Weather Guard Model 121-5-04 lists that capacity in a full-size format.
This suits mid-size truck owners who want a shorter aluminum saddle box with weather-sealed, lockable storage. Its 8-cubic-foot capacity and 20.25-inch width are key boundaries when planning tools and bed space.
Full product details
| Brand | Weather Guard |
|---|---|
| Capacity | 8 cubic feet |
| Color | Gloss-Black |
| Compatible with Vehicle Type | Motorcycle |
| Included Components | item |
| Dimensions | 62.25"L x 20.25"W x 18.62"H |
| Item Weight | 67 pounds |
| Manufacturer | WEATHER GUARD |
| Part Number | 131-5-04 |
| Manufacturer Warranty Description | 15-ga body |
| Material | Aluminum |
| Model Number | 783965071505 |
| Size | 8.0 cu ft |
| Style Name | Saddle Box |
Listed on Amazon as: Weather Guard Model 131-5-04 Saddle Box, Aluminum, Mid-Size Low Profile, Gloss Black, 8.0 cu ft
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#8
8. Weather Guard 120-5-04 Saddle Box
- Material: Alloy Steel
- Capacity: 11 cubic feet
Best for: Steel low-profile storage.
Why it ranks #8: This full-size low-profile steel box lists 11 cubic feet and a full weather seal, with a tamper-resistant push-button lock.
Alloy steel construction sets this low-profile Weather Guard saddle box apart from the aluminum options in the supplied lineup. It offers 11 cubic feet for full-size trucks, with a full weather seal, tamper-resistant push-button lock, and 90-degree lid opening to support protected, accessible tool storage.
The low-profile format is specified for full-size trucks, while saddle-box placement is described as maintaining maximum bed clearance. Its 11-cubic-foot capacity gives buyers a concrete storage allowance, and the full weather seal helps protect tools from the elements. The 90-degree opening supports practical access, and the optimized latching system requires less force to close. Alloy steel construction is the key material distinction for shoppers choosing between steel and aluminum bodies.
- Alloy steel construction
- 11 cubic feet of storage capacity
- Full weather seal helps protect contents
- 90-degree opening and optimized lower-force latching
- The alloy-steel body differs from the aluminum construction of many listed alternatives.
Skip it if you prioritize an aluminum body; the Weather Guard Model 121-5-04 is an aluminum low-profile box with 11 cubic feet.
Choose this for a full-size truck when steel construction, 11 cubic feet of storage, and weather protection are priorities. Its low-profile saddle format preserves bed clearance, but the material choice is the main distinction to weigh.
Full product details
| Brand | Weather Guard |
|---|---|
| Capacity | 11 cubic feet |
| Color | Gloss Black |
| Included Components | item |
| Manufacturer | Weather Guard |
| Material | Alloy Steel |
| Model Number | 120-5-04 |
| Warranty Description | 18-ga body |
Listed on Amazon as: Weather Guard Model 120-5-04 Saddle Truck Box, Steel, for Full Size Trucks, Low Profile, Gloss Black, 11.0 cu ft Capacity
View on AmazonWhy it ranks #9: The steel full low-profile model may suit buyers prioritizing a steel construction, though this listing provides fewer capacity and dimension details.
Steel construction is the defining supplied specification for this Weather Guard full low-profile saddle truck tool box, giving material-focused buyers a clear point of distinction. Its gloss-black finish and low-profile format identify the basic configuration, while the available details emphasize durability without stating a capacity or dimensions.
The supplied information identifies a steel body and a full low-profile saddle-box style, so buyers can assess its material and general form. Durability is listed as a product feature, and the gloss-black finish identifies its exterior appearance. Unlike listings with stated capacities and dimensions, the supplied specifications here do not give those measurements, limiting how precisely buyers can plan tool volume or bed-space use from this information alone.
- Steel body material is specified
- Full low-profile saddle-box style
- Durability is listed as a feature
- Gloss-black finish
- The supplied specifications do not state capacity or dimensions.
Skip it if you need a stated 11-cubic-foot capacity; the Weather Guard Model 120-5-04 lists that volume and steel construction.
This may suit shoppers focused on a steel, full low-profile Weather Guard box and gloss-black finish. The supplied details do not state capacity or dimensions, so those specifics cannot be assessed from this listing information.
Full product details
| Brand | Weather Guard |
|---|---|
| Color | Gloss Black |
| Part Number | 120-5-03 |
| Material | Steel |
| Material Features | Durability |
| Special Features | Durability |
| Special Feature | Durability |
Listed on Amazon as: Weather Guard Saddle Truck Tool Box Steel Full Low Profile Gloss Black
View on Amazon
#10
10. Weather Guard 121-52-03 Saddle Box
- Material: Aluminum
- Capacity: 10.2 cubic feet
- Dimensions: 72"L x 20.5"W x 18.5"H
Best for: Keyed fleet low-profile box.
Why it ranks #10: This low-profile aluminum box lists 10.2 cubic feet and a 72-by-20.5-by-18.5-inch size, below the 11-cubic-foot alternatives here.
The code-able push-button lock lets multiple boxes on a truck or fleet share the same key, making this Weather Guard saddle box especially relevant to fleet workflows. It combines low-profile storage with 10.2 cubic feet of capacity, a 90-degree-opening cover, and a latching system that takes less force to close.
Its 72-by-20.5-by-18.5-inch dimensions and 10.2-cubic-foot capacity help set expectations for bed space and tool storage. Saddle-box placement is described as preserving maximum bed clearance, while the 90-degree cover opening supports access from the truck side. The optimized latching system requires less force to close, which can ease repeated use. Its code-able push-button lock can align access across multiple boxes, and the aluminum construction keeps the body material corrosion-resistant by description.
- Code-able lock can key multiple truck or fleet boxes alike
- 10.2 cubic feet of storage capacity
- 90-degree cover opening for access
- Optimized latching system requires less force to close
- Its 10.2-cubic-foot capacity is less than the 11-cubic-foot models listed.
Skip it if you need the listed 11-cubic-foot capacity; the Weather Guard Model 121-5-04 offers that volume.
This is a fit for fleet operators and truck owners managing multiple keyed boxes who value easier repeated opening and closing. Its 10.2-cubic-foot capacity and 20.5-inch width should suit the intended bed layout.
Full product details
| Brand | Weather Guard |
|---|---|
| Capacity | 10.2 cubic feet |
| Color | Textured Matte Black |
| Dimensions | 72"L x 20.5"W x 18.5"H |
| Manufacturer | WeatherGuard |
| Part Number | 121-52-03 |
| Material | Aluminum |
| Material Features | Aluminum construction |
| Model Number | 121-52-03 |
| Special Features | Durability |
| Special Feature | Durability |
Listed on Amazon as: Weather Guard Saddle Truck Tool Box Aluminum Full Low Profile Textured Matte Black 10.2 Cu Ft
View on AmazonCheck bed and cover clearance before ordering
Confirm the box, truck bed, and any bed cover can coexist before choosing a model. The listings identify several boxes as full-size and one as mid-size, but they do not provide a truck-fitment chart, rail spacing, or tonneau-cover compatibility. Compare the listed measurements with your usable bed width and length: the standard low-profile models are listed at 72 by 20 by 18 inches, while the extra-wide model measures 72 by 27.5 by 18.5 inches.
That extra width could affect access to bed space or adjacent equipment, so measure rather than relying on the product name. Also check clearance with the cover open and closed; a 90-degree lid opening is stated for some models, but the listings do not establish compatibility with a particular cover.
A mismatch can leave the lid obstructed or make the box unusable, even when its nominal truck-size category seems right.
How to Choose a Truck Saddle Tool Box
Capacity and interior volume
Choose capacity according to the tools you need to carry, while remembering that listed volume does not describe the interior shape or usable dimensions. Several full-size options, including the Weather Guard 121-52-04 Saddle Box, list 11 cubic feet. The Weather Guard 121-52-03 Saddle Box lists 10.2 cubic feet, and the Weather Guard 131-5-04 Saddle Box lists 8 cubic feet.
Other products do not provide a capacity figure, so do not assume their volume matches similarly sized models. Buyers carrying larger collections may prefer a stated 11-cubic-foot model; drivers with a mid-size truck or a smaller load may find the 8-cubic-foot model more appropriate, subject to verifying bed fit.
Material and finish
Pick the material and finish based on the construction you want and the specific listing details. Most models here are aluminum; the Weather Guard 120-5-04 Saddle Box and Weather Guard 120-5-03 Saddle Box are steel alternatives. Aluminum models include gloss black, textured matte black, and clear finishes.
Some aluminum listings describe corrosion resistance or a rust-resistant finish, but the details are not equally complete across every product. For example, the Weather Guard 121-52-04 Saddle Box is textured matte black, while the Weather Guard 121-0-04 Saddle Box has a clear finish.
Buyers specifically seeking steel can focus on the two 120-series steel models; those prioritizing a stated aluminum build have more choices in the lineup.
Profile, footprint, and truck size
Match the box footprint and profile to your bed layout before selecting a model. Several products are identified as low profile, while the Weather Guard 127-52-04 Saddle Box is full standard and the Weather Guard 123-5-03 Saddle Box is full deep. Most provided full-size dimensions are around 72 inches long; the Weather Guard 117-52-03 Saddle Box is 27.5 inches wide, compared with 20 inches for the Weather Guard 121-52-04 Saddle Box.
The mid-size Weather Guard 131-5-04 Saddle Box measures 62.25 inches long. Buyers wanting a wider box should consider the extra-wide option only after checking available bed space; those with mid-size trucks should verify fit rather than relying solely on the model label.
Which Saddle Box Fits Your Truck and Tools?
For a full-size truck owner seeking a low-profile 11-cubic-foot aluminum box with included accessories, choose the Weather Guard 121-52-04 Saddle Box. The Weather Guard 121-5-04 Saddle Box is a close alternative with a gloss-black finish and the same listed capacity. If you want a full-standard box, consider the Weather Guard 127-52-04 Saddle Box; for a deeper body, the Weather Guard 123-5-03 Saddle Box lists dimensions of 72 by 20.5 by 18.5 inches.
Buyers needing extra width can compare the Weather Guard 117-52-03 Saddle Box against their bed measurements. For a mid-size truck, check the 8-cubic-foot Weather Guard 131-5-04 Saddle Box.
Choose either steel 120-series option if steel construction is your priority, and verify fitment and cover clearance before ordering.
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Frequently Asked Questions
How do I confirm a saddle box will fit my truck bed and rails?
Measure the available bed width, rail spacing, and mounting area, then compare those measurements with the box dimensions and its fitment information. Check that the box can sit securely without obstructing the tailgate or other equipment. If dimensions or fitment are unclear, confirm compatibility with the seller before ordering.
Will a saddle tool box interfere with a tonneau cover or bed liner?
It may, depending on the cover style, rail arrangement, liner, and box height. Compare the box dimensions with the clearance available beneath the cover and check whether the liner changes the mounting surface. Confirm compatibility for your specific truck and cover before ordering; do not assume every saddle box fits every setup.
How can I reduce water intrusion and condensation inside a truck tool box?
Check that the lid closes evenly and the weather seal is seated, and keep the seal and contact surfaces clean. Dry wet tools before storing them, and inspect the interior periodically for moisture. A weather seal can help limit water entry, but it does not eliminate the need to check the box after wet conditions.
Should I choose a full-size or mid-size saddle box?
Match the box to your truck bed and the amount of storage you need. The listed lineup includes full-size options, including 11-cubic-foot models, and a mid-size option listed at 8 cubic feet. Verify bed measurements and fitment before choosing; listed capacity alone does not confirm that a box will fit.
What should I consider when choosing aluminum or steel construction?
Choose based on your material preference and the specific box configuration. This lineup includes both aluminum and steel options, with differences in listed size, finish, and profile. Compare those details against your truck and intended use, and verify fitment and cover clearance before selecting a model.
Final Words
For a full-size truck, the Weather Guard 121-52-04 is the overall pick if its low-profile design, 11-cubic-foot capacity, included accessories, and listed dimensions suit your setup. Consider the gloss-black alternative for a different finish, or compare the full-standard, deep, and extra-wide options against your measurements. Mid-size owners can check the 8-cubic-foot option, while buyers prioritizing steel can compare the steel models.
Confirm fitment and cover clearance before ordering.



