Best Cold Air Intake For Diesel: Compare 10 Truck Fitments

#1 · Best Overall

1. K&N NextGen 50-2613D

• Dimensions: 24.2"L x 20.2"W x 15.6"H
• Dimensions: 24.2"L x 20.2"W x 15.6"H

Best for: Ford Super Duty towing.

Why it ranks #1: Its listed 2020–2026 Ford F-250 and F-350 fitment, semi-enclosed airbox, and stated stock-tune horsepower and torque gains make it a well-specified choice.

A semi-enclosed hybrid airbox paired with an enlarged fresh-air inlet is the defining feature of K&N’s NextGen intake, helping lower air temperatures while supplying the engine. The listing identifies compatibility with 2020–2026 Ford F-250 and F-350 trucks, and claims dyno-proven horsepower and torque gains on the stock tune.

The rotationally molded HDPE tube is intended to increase airflow without requiring a tune, so the claimed performance change does not depend on an engine calibration update. K&N also specifies a washable Dryflow filter, giving owners a reusable filtration option, while the semi-enclosed airbox and enlarged inlet address incoming-air routing. The product is listed for 2020–2026 F-250 and F-350 applications; its dimensions are 24.2 by 20.2 by 15.6 inches, a practical consideration when planning engine-bay installation.

Skip it if you own a 6.7L Cummins Ram; Boosted Performance BP 5952-2R lists 2007.5–2018 Ram 2500/3500 compatibility instead.

For owners of listed 2020–2026 Ford F-250 or F-350 trucks who tow or haul, this intake pairs airflow and airbox changes with stock-tune performance claims. Its stated application does not cover other vehicles.

Listed on Amazon as: K&N NextGen Diesel Dryflow Cold Air Intake: Compatible with 2020-2026 FORD; F250; F350; 50-2613D

#2 · Broadest Cummins Fitment

2. Boosted Performance 6.7 Cummins

• Dimensions: 21"L x 14"W x 9"H
• Dimensions: 21"L x 14"W x 9"H

Best for: Cummins turbo response seekers.

Why it ranks #2: The kit covers 2007.5–2018 Ram 2500 and 3500 6.7L trucks, with 4-inch piping and stated airflow and power gains.

Boosted Performance claims more than 50% increased airflow over the factory intake through larger four-inch piping and a bigger open filter. This kit is listed for 2007.5–2018 Dodge Ram 2500/3500 trucks with the 6.7L Cummins, with claimed gains in turbo spool, throttle response, horsepower, and torque.

The four-inch piping and larger open air filter are described as the basis for increased airflow and reduced factory-intake restriction, linking the hardware to the claimed quicker turbo spool and throttle response. The manufacturer also lists 10–15 WHP and 20–25 WTQ gains. Piping, filter, and hardware are included, and the kit is described as a bolt-on fit for the specified 2007.5–2018 trucks, with installation stated to take under 45 minutes from a driveway.

Skip it if you need a listed 2013–2018 Ram-only application with reusable cotton media; Sinister Diesel SD-CAI-6.7C-13 specifies that range and filter.

For 2007.5–2018 Ram 2500/3500 owners prioritizing airflow and turbo response, this package combines larger piping, an open filter, and listed hardware. Its application is specific to 6.7L Cummins trucks, not other engines.

Listed on Amazon as: Boosted Performance 6.7 Cummins Performance Cold Air Intake System Dodge Ram 2500/3500 (2007.5-2018) + WHP, WTQ, MPG Gains (Red Filter)

#3 · Polished Aluminum Build

3. Sinister Diesel 6.7 Cummins

Best for: Cummins truck filter reuse.

Why it ranks #3: This kit targets 2013–2018 Ram 2500 and 3500 6.7L Cummins trucks and lists CNC mandrel-bent aluminum tubing with a reusable cotton oiled filter.

Precision CNC mandrel-bent aluminum tubing anchors this Sinister Diesel intake, with the listing specifying compatibility with 2013–2018 Dodge Ram 2500 and 3500 6.7L Cummins trucks. Its oversized reusable cotton oiled filter offers a maintenance option for owners who prefer cleaning and reusing filter media rather than replacing it.

The mandrel-bent tubing is described as engineered for a precise fit, while the oversized cotton oiled filter is reusable, linking the intake’s construction to fit and ongoing filter care. The product weighs 5.1 pounds, and its listed application is specifically 2013–2018 Ram 2500/3500 Cummins 6.7L trucks. The supplied legal disclaimer says it is not for sale in California, a relevant restriction for buyers there; the listing also identifies polished, powder-coated tubing.

Skip it if you need a California-sale-eligible Ford intake; Sinister Diesel SD-CAI-6.0 lists a 50-state legal 2003–2007 Powerstroke application.

This is for 2013–2018 Ram 2500/3500 Cummins owners seeking mandrel-bent tubing and reusable cotton filter media. Its explicit California sale restriction is a decisive boundary, and its stated fitment is not for other model years.

Listed on Amazon as: Sinister Diesel Cold Air Intake Kit | Compatible with 2013-2018 Dodge Ram 2500/3500 Cummins 6.7L | Increased Horsepower & Performance | Easy Installation

#4 · 50-State Legal

4. Sinister Diesel 6.0 Powerstroke

• Dimensions: 29"L x 13"W x 11"H
• Dimensions: 29"L x 13"W x 11"H

Best for: Emissions-compliant Ford Powerstroke.

Why it ranks #4: The 2003–2007 Ford 6.0L Powerstroke kit is a direct bolt-on, and the listing gives CARB EO number D-721-4.

A CARB executive order and stated 50-state legality distinguish this Sinister Diesel intake for 2003–2007 Ford F-250, F-350, and Excursion 6.0L Powerstroke trucks. Its direct bolt-on installation requires no cutting or modifications, while the high-flow design is claimed to improve throttle response, turbo efficiency, and engine performance.

The direct bolt-on configuration is specified to avoid cutting or modifications, helping keep the installation process focused on replacing the factory intake. Sinister Diesel describes its high-flow design as improving airflow, throttle response, and turbo efficiency, making those performance aims relevant to owners of the listed 6.0L Powerstroke vehicles. The listing identifies CARB EO D-721-4 and 50-state legality; it also notes that owners without a factory MAF sensor should contact the manufacturer.

Skip it if you own a 2008–2010 Ford 6.4L Super Duty; LDMINDA LD-F343 lists F-250/F-350/F-450 fitment for those years.

This suits 2003–2007 Ford 6.0L Powerstroke owners seeking a bolt-on intake with stated emissions compliance and airflow aims. The listing specifically flags trucks without a factory MAF sensor for manufacturer contact.

Listed on Amazon as: Sinister Diesel Cold Air Intake for 2003–2007 Ford Powerstroke 6.0L | High-Flow Intake System for Better Throttle Response, Turbo Efficiency & Performance | CARB EO# D-721-4

#5

5. K&N NextGen 50-3119D

• Dimensions: 24.38"L x 24.38"W x 19.13"H
• Dimensions: 24.38"L x 24.38"W x 19.13"H

Best for: Stock-tune diesel upgrade.

Why it ranks #5: It offers the same stated stock-tune performance approach and semi-enclosed airbox as the other K&N NextGen kit, though the supplied fitment details are less specific.

K&N’s semi-enclosed hybrid airbox and enlarged fresh-air inlet are the main draw, with the airbox intended to help lower intake temperatures. The manufacturer also claims dyno-proven horsepower and torque gains on a stock tune, while enhanced induction and turbo clarity are specified without unwanted cruising-speed drone.

A rotationally molded HDPE tube is intended to increase airflow and support horsepower and torque gains without a tune, which keeps the listed upgrade independent of calibration changes. The washable Dryflow filter offers a reusable filtration element, and the hybrid airbox combines semi-enclosure with a larger fresh-air inlet. At 24.38 inches long, wide, and 19.13 inches high, the assembly merits an engine-bay space check; the supplied listing excerpt does not identify a vehicle application.

Skip it if you need a stated Ford Super Duty fitment; K&N 50-2613D lists 2020–2026 F-250 and F-350 compatibility.

This suits a buyer whose vehicle application is confirmed through the complete listing and who wants a washable filter, airbox changes, and stock-tune performance claims. The supplied excerpt alone leaves fitment unspecified, so it cannot establish compatibility.

Listed on Amazon as: K&N NextGen Diesel Dryflow Cold Air Intake, 50-3119D

#6 · Includes Oiled Filter

6. LDMINDA 4-Inch Cummins

Best for: Older Cummins Ram owners.

Why it ranks #6: This 4-inch aluminum kit is listed for 2007.5–2012 Ram 2500 and 3500 6.7L Cummins models and includes an oiled filter and mounting hardware.

A four-inch CNC mandrel-bent aluminum intake pipe is the defining feature of this LDMINDA kit, intended to support airflow on compatible 6.7L Cummins trucks. Its stated fitment covers Dodge Ram 2500 and 3500 models from 2007.5 through 2012, and the package includes an oiled filter and mounting hardware.

The four-inch aluminum pipe and CNC-mandrel-bent construction are specified for maximum airflow, giving buyers a clear alternative to a factory intake pipe. The package includes an oiled filter, bracket, screws, and O-shaped washers, but the listing explicitly says instructions are not included; installation therefore calls for working from available vehicle knowledge or sourcing guidance separately. Fitment is limited to 2007.5–2012 Ram 2500/3500 6.7L Cummins applications, so the year and engine matter.

Skip it if you need supplied instructions or own a 2013–2018 6.7L Cummins Ram; Sinister Diesel SD-CAI-6.7C-13 lists that later range.

For a 2007.5–2012 Ram 2500 or 3500 with the 6.7L Cummins, this kit provides a four-inch aluminum pipe and included mounting pieces. The no-instructions package is a real consideration for less experienced installers.

Listed on Amazon as: 4 inch Cold Air Intake Kit Air Intake Pipe With Filter System Compatible with Dodge Ram 2500 3500 6.7L Cummins Diesel 2007.5-2012

#7

7. EVIL ENERGY LLY 6.6L

Best for: LLY Duramax basic-tool install.

Why it ranks #7: It specifically fits 2004–2005 Chevrolet and GMC 2500HD and 3500 LLY 6.6L trucks, with a pre-filter included and a stated 40-minute installation.

A stated 40-minute installation with basic tools is the practical headline for EVIL ENERGY’s intake for 2004–2005 Chevrolet Silverado and GMC Sierra 2500HD/3500 trucks with the LLY 6.6L V8 turbo diesel. Fitment includes manual and automatic transmissions, and the kit includes a pre-filter.

The specified Chevrolet and GMC 2004–2005 LLY 6.6L applications cover both 2500HD and 3500 models, with manual and automatic transmissions explicitly included. That detail helps narrow compatibility before installation, while the stated 40-minute install using basic tools gives buyers a sense of the work involved. The included pre-filter is part of the kit; the supplied excerpt does not provide further construction or filtration specifications, so those details cannot guide comparison here.

Skip it if you have a 2003–2007 5.9L Cummins Ram; SPELAB ASP-BQM0001009 lists that Dodge application instead.

This suits owners of the specified 2004–2005 LLY Duramax Silverado or Sierra who value a stated basic-tool installation and included pre-filter. Its fitment does not extend to other years or engine versions in the supplied information.

Listed on Amazon as: EVIL ENERGY Cold Air Intake Compatible for 2004-2005 Chevrolet Silverado/GMC Sierra 2500 HD 3500 Turbo Diesel LLY 6.6L V8, Includes Pre-Filter, Black

#8

8. SPELAB 5.9L Cummins

Best for: 5.9L Cummins Ram owners.

Why it ranks #8: The listed fitment covers 2003–2007 Ram 2500 and 3500 5.9L diesel trucks, and the kit includes a pre-filter.

A pre-filter is included with SPELAB’s cold-air intake for 2003–2007 Dodge Ram 2500 and 3500 trucks fitted with the 5.9L L6 diesel. The listing also describes a smooth internal path and secure connections, linking its stated construction approach to consistent operation during highway and uphill travel.

The listed fitment identifies the 2003–2007 Ram 2500/3500 5.9L L6 diesel range, helping owners distinguish it from intake kits for other Cummins generations. SPELAB describes a smooth internal path and secure connections as supporting steady engine operation across changing road conditions, while the included pre-filter is another specified component. The supplied excerpt does not state installation time, pipe material, or filter maintenance requirements, so buyers should weigh the confirmed application and listed features rather than assume those details.

Skip it if you have a 2007.5–2012 6.7L Cummins Ram; LDMINDA Y116-FBA lists that later engine and model-year range.

For owners of a 2003–2007 Ram 2500 or 3500 with the 5.9L L6 diesel, this intake offers a pre-filter and stated smooth-path, secure-connection features. Its stated fitment does not cover other Cummins generations.

Listed on Amazon as: SPELAB Cold Air Intake Compatible for 2003-2007 Dodge Ram 2500 3500 5.9L L6 Diesel, Includes Pre-Filter, Black

#9

9. LDMINDA 6.4 Powerstroke

• Dimensions: 16"L x 11"W x 7.5"H
• Dimensions: 16"L x 11"W x 7.5"H

Best for: Ford 6.4L Super Duty.

Why it ranks #9: Its 4-inch aluminum intake is listed for 2008–2010 Ford F-250, F-350, and F-450 6.4L Powerstroke trucks, with a dry-density-fiber filter.

Four-inch CNC mandrel-bent aluminum tubing is the defining feature of this LDMINDA intake for 2008–2010 Ford F-250, F-350, and F-450 Super Duty trucks with the 6.4L Power Stroke diesel. The kit includes a dry-density-fiber filter, mounting hardware, and a polished, black powder-coated pipe.

The mandrel-bent aluminum pipe is specified for airflow, while the dry-density-fiber filter is described as helping obstruct outside substances from entering the engine. Included mounting hardware and the stated ability to install with basic tools can support a straightforward garage workflow, although professional installation is highly recommended. The fitment is restricted to 2008–2010 F-250, F-350, and F-450 6.4L Power Stroke models, making engine and model year central checks.

Skip it if you own a 2020–2026 Ford F-250 or F-350; K&N 50-2613D lists those newer Super Duty years.

This kit fits the stated 2008–2010 Ford Super Duty 6.4L Power Stroke range and suits buyers seeking an aluminum pipe with a dry filter. The listing recommends professional installation, even though basic tools are noted.

Listed on Amazon as: Cold Air Intake Kit Replacement For Ford F-250 F-350 F-450 6.4L 2008-2010

#10

10. ZANILIA 6.7 Cummins

Best for: Older Ram airflow upgrade.

Why it ranks #10: This kit is listed for 2007.5–2012 Ram 2500 and 3500 6.7L Cummins trucks, but the supplied product details provide fewer construction and component specifics.

A four-inch cold-air intake is the key specification in ZANILIA’s listing for 2007.5–2012 Dodge Ram 2500 and 3500 trucks with the 6.7L Cummins diesel. The supplied description says the intake pulls in more cold air to keep out engine heat and improve horsepower, though it provides few construction or installation details.

The stated four-inch size and 2007.5–2012 6.7L Cummins application give buyers the main points for assessing whether this intake belongs on their truck. ZANILIA describes its purpose as drawing in more cold air to keep engine heat out and improve horsepower, but the supplied information does not specify pipe material, filter type, included hardware, or installation steps. That limited detail makes the fitment range and the stated airflow purpose the most useful decision factors in this listing.

Skip it if you want a stated oiled filter and mounting hardware for the same Ram years; LDMINDA Y116-FBA lists those components.

This is a basic option to consider for a 2007.5–2012 Ram 2500 or 3500 with the 6.7L Cummins, using the listed four-inch size and cold-air purpose. Buyers needing detailed filter and installation information should look elsewhere.

Listed on Amazon as: 4inch Cold Air Intake Kit Fits 2007.5 2008 2009 2010 2011 2012 Dodge Ram 2500 3500 6.7L Cummins Diesel(Red)