Best Fuel Injector For Motorcycle: Compare 10 Replacement Options

#1 · Best Overall

1. HiSport Fuel Injector 27709-06A

Best for: Harley cold-start replacement.

Why it ranks #1: The two-piece set has six holes and lists replacement numbers 27709-06A and 27654-06 for a specified Harley-Davidson 25-degree application.

Six-hole metering and a two-injector pack define the HiSport 27709-06A set, giving Harley owners a matched pair for replacement. Its stated cold-temperature adjustment supports easier starting in chilly conditions, while the metal-and-composite construction and listed replacement numbers help identify the intended service application.

The six-hole design is paired with a stated focus on consistent, smoother function, which gives buyers a concrete reason to consider it when replacing injectors as a set. HiSport lists 27709-06A and related OE references, helping cross-check the part number against the existing component. The pack contains two injectors, and the specified Harley 25-degree application sets a narrower fitment boundary; verify the exact motorcycle and reference number before installation.

Skip it if you need injectors for a Yamaha; the stated application here is Harley-Davidson 25-degree motorcycles.

Choose this pair if your Harley application matches the listed 25-degree fitment and 27709-06A reference, especially when cold-weather starting matters. The key boundary is confirming the exact model and replacement number before beginning the installation.

Listed on Amazon as: HiSport Fuel Injector 27709-06A 2PCS Compatible with Harley Davidson

#2 · Longest Warranty

2. Automotive-leader 27709-06A

• Weight: 3.98 oz

Best for: Harley Dyna direct replacement.

Why it ranks #2: This two-piece, six-hole replacement lists Harley-Davidson applications and reference numbers, plus a stated two-year warranty.

Fast response is a stated feature of Automotive-leader’s two-piece, six-hole injector set, aimed at Harley applications using the 27709-06A replacement reference. The listing also identifies 2-pin connectors and preinstalled O-rings, details that let owners assess the connection and sealing arrangement before installation.

A two-pin connector specification and preinstalled O-rings help buyers compare the electrical connection and seal arrangement with the existing parts, while the two-injector pack supports a paired replacement. The six-hole design and stated fast response describe the injector’s operating features. Its listed Harley 25-degree applications include Dyna-related models, and the supplied 2006–2015 span makes checking the exact motorcycle and reference number important.

Skip it if you need a Harley injector with explicitly listed preinstalled O-rings and EV1 connection; SZKAIDAG 27709-06A specifies both.

This set suits Harley owners matching the 27709-06A reference who want two injectors with preinstalled O-rings and a specified two-pin connection. Treat its 2006–2015 application details as a boundary and check the motorcycle’s exact fitment.

Listed on Amazon as: 2Pcs 27709-06A Fuel Injectors 6 Holes Engine 2770906A Original Equipment Compatible for Harley Davidson Dyna Motorcycle 275CC Engine 25 Degree 2007-2015 1022-0112 27625-06 R2025DEG

#3 · O-Rings Included

3. SZKAIDAG 27709-06A

• Weight: 3.52 oz

Best for: Harley owners replacing a pair.

Why it ranks #3: The two-piece six-hole set specifies Harley-Davidson model years 2007–2017 and includes preinstalled O-rings.

Preinstalled O-rings distinguish this two-piece SZKAIDAG set, allowing buyers to receive injectors with the seals already in place. The listing also specifies six holes and an EV1 connector, giving Harley owners useful hardware details to compare with a 25-degree motorcycle application before preparing the replacement.

The pair format suits a replacement plan calling for two injectors, while the preinstalled O-rings can reduce separate seal handling during installation. Six holes and the listed EV1 connector offer additional details for comparison with the existing components. SZKAIDAG identifies Harley-Davidson 25-degree motorcycles from 2007 through 2017 and supplies several OE references; use those application years and numbers to check fit before removing the original injectors.

Skip it if you need an injector for a Yamaha; Wonyton 3B4-13761-00-00 lists several Yamaha applications.

Consider this set for a matching Harley 25-degree motorcycle when replacing a pair and valuing preinstalled O-rings. Its EV1 connector and listed 2007–2017 range are useful boundaries, so compare the connector and OE reference with the original.

Listed on Amazon as: 27709-06A Fuel Injectors Set of 2 For:-Harley Davidson Motorcycle

#4 · Broad Harley Fitment

4. Germban 27709-06A

Best for: Harley Dyna direct-fit service.

Why it ranks #4: This two-piece six-hole replacement lists several Harley-Davidson models and years, and identifies 27709-06A and related reference numbers.

Direct-replacement fitment is the stated installation advantage of Germban’s two-piece, six-hole set for Harley applications using the 27709-06A reference. Its listing names Dyna motorcycles with a 275CC engine and 25-degree configuration, giving buyers specific application details alongside the OE-reference numbers.

The direct-replacement description and listed OE references—27709-06A, 1022-0112, 27625-06, and R2025DEG—give owners practical ways to compare the set with the original parts. Two injectors are included, and the six-hole design describes the injector configuration. Germban also names Harley Dyna 275CC 25-degree applications and several related models; use the exact model, year, and reference to check fit before starting installation.

Skip it if you need preinstalled O-rings specifically; SZKAIDAG 27709-06A states that its two injectors include them.

This Germban set suits Harley owners matching the 27709-06A references and listed Dyna 275CC 25-degree application who need two injectors. Check the exact model and year against its application details before treating direct replacement as a fit guarantee.

Listed on Amazon as: 27709-06A 2pcs Set Fuel Injector 6 Holes Replacement for 2006-2015 Harley Davidson Motorcycle 25 Degree 27625-06 R2025DEG

#5 · Four-Hole Design

5. HiSport IWP043

• Weight: 2.89 oz

Best for: Ducati four-hole replacement pair.

Why it ranks #5: The two-piece, four-hole injector is listed for Ducati motorcycles and other applications, with IWP043 as its OEM number.

Four-hole atomization is the defining feature of HiSport’s IWP043 pair, which the listing connects to more efficient fuel vaporization. The two-piece pack, metal-and-composite construction, and named Ducati applications make it a focused option for owners comparing an IWP043 replacement rather than a general-purpose motorcycle injector.

The four-hole design is described as supporting excellent atomization and more efficient fuel vaporization, giving the listed nozzle configuration a practical operating rationale. Two injectors come in the pack, useful when a replacement plan calls for a pair, and the metal-and-composite construction identifies the stated materials. HiSport names Ducati Supersport, MH900, Monster, and SS800 among compatible applications; compare the IWP043 reference and specific motorcycle before installation.

Skip it if you need an explicitly listed Yamaha injector; Zxyculture 3B4-13761-00-00 names WR450F, YFZ450R, and Grizzly fitment.

This pair fits buyers matching the IWP043 reference and listed Ducati applications, including Monster and SS800. Its four-hole atomization is a stated operating feature, but the application list is specific, so verify the motorcycle and injector reference first.

Listed on Amazon as: HiSport Racing Fuel Injector IWP043 Replacement for Ducati Monster 696 SS800 M620 Weber Marelli Motorcycle (pack of 2)

#6

6. YZHIDIANF IWP162

• Weight: 3.45 oz

Best for: Harley IWP162 service.

Why it ranks #6: The listing gives IWP162 and several Harley-Davidson model ranges, including Softail, Dyna, FLH, and FLT applications.

A stainless-steel slide and spring assembly is the defining construction detail of this YZHIDIANF IWP162 injector, with the listing connecting that assembly to longer fuel-injection-system service life. Its named Harley applications cover Softail, Dyna, FLH, and FLT models, giving owners a focused starting point for replacement research.

The stainless-steel slide and spring assembly is presented as a durability feature, which may matter to buyers prioritizing service life in a replacement injector. The IWP162 identifier and listed OE numbers—27609-01B, 27609-01, and 1022-0113—provide concrete cross-checks against the existing part. Fitment is stated for select Harley Softail, Dyna, FLH, and FLT years; the 12-volt specification also gives a useful electrical reference during parts verification.

Skip it if you need a two-piece set for a 25-degree Harley; HiSport 27709-06A is explicitly listed as a pair.

Choose this injector for a matching Harley application that uses IWP162 or one of its listed OE references, especially when the stainless-steel slide and spring assembly matters. Its fitment is limited to the named model families and years.

Listed on Amazon as: IWP162 For:-Harley Davidson Motorcycle Fuel Injectors

#7

7. Wonyton 3B4-13761-00-00

Best for: Single Yamaha replacement injector.

Why it ranks #7: The single injector lists fitment for Grizzly, WR450F, YFZ450R, YZ450F, and YZ450FX models across specified year ranges.

A 12-hole design and one-piece quantity define this Wonyton replacement, whose 3B4-13761-00-00 reference is tied to several Yamaha models. The model list spans Grizzly, WR450F, YFZ450R, and YZ450F applications, giving owners a broader set of named checks than a single-model title would provide.

The listed 12-hole design is a concrete configuration detail for buyers comparing the replacement with an original injector, while the single-piece quantity fits a one-unit service need. Wonyton supplies the 3B4-13761-00-00 reference and names Yamaha Grizzly, V Star, WR450F, YFZ450R, YZ450F, and YZ450FX applications across specified years. Those model and year details offer practical fitment checks; compare them with the motorcycle before installation.

Skip it if you need two Yamaha injectors in one pack; Zxyculture 3B4-13761-00-00 is listed for the same named model families.

Choose this single injector when its 3B4-13761-00-00 reference and listed Yamaha model-year application match the repair. Its one-piece quantity suits a single replacement; buyers planning a paired job should account for the pack size.

Listed on Amazon as: 3B4-13761-00-00 1pcs Fuel Injector 12 Holes Replacement for Yamaha Grizzly 550 YFZ450R WR450F YZ450F 07-15 3B4137610000

#8

8. Zxyculture 3B4-13761-00-00

• Weight: 0.493 oz

Best for: Yamaha model-specific replacement.

Why it ranks #8: The title identifies Yamaha WR450F, YFZ450R, and Grizzly applications, though the supplied specifications give limited fitment detail.

The 3B4-13761-00-00 reference is the clearest identifier for this Zxyculture injector, connecting it to the Yamaha WR450F, YFZ450R, and Grizzly fitment named in the title. That model-specific framing helps owners start a replacement search with an OE-style number rather than a broad, unspecified motorcycle category.

This listing names the WR450F, YFZ450R, and Grizzly, and its 3B4-13761-00-00 item number gives buyers a second way to compare the replacement with an existing injector reference. The stated 2007–19 range helps narrow the intended model years, but the supplied details do not specify a spray pattern or construction material. Use the named models and part number as the practical fitment checks before planning installation.

Skip it if you need a Harley replacement; HiSport 27709-06A is listed for Harley-Davidson 25-degree motorcycles.

This is for Yamaha owners whose WR450F, YFZ450R, or Grizzly and model year match the listing, with 3B4-13761-00-00 as a cross-check. Its supplied fitment information is model-specific, so avoid treating it as a universal injector.

Listed on Amazon as: Fuel Injector Fit for Yamaha WR450F YFZ450R Grizzly 2007-19 3B4-13761-00-00

#9

9. YVZ 15710-21H00

• Weight: 9.6 oz

Best for: Suzuki GSX1300R eight-piece set.

Why it ranks #9: The eight-piece set lists Suzuki GSX1300R and reference number 15710-21H00, but gives no model-year fitment details.

Eight injectors in one pack make the YVZ 15710-21H00 set notably suited to a replacement plan requiring multiple units. The title identifies Suzuki GSX1300R, while the listed metal-and-plastic construction and OE number give buyers concrete details to compare with the parts being serviced.

The eight-piece count is the main practical distinction: it supplies multiple injectors for a job that calls for that quantity, rather than a single replacement. YVZ lists OE number 15710-21H00 and Suzuki GSX1300R in the title, giving two useful fitment checks before work begins. Metal and plastic are the specified materials. Since the supplied application information is narrow, confirm the motorcycle’s exact injector reference and required quantity before installation.

Skip it if you need just one Yamaha injector; Wonyton 3B4-13761-00-00 is listed as a one-piece replacement.

Consider this pack when servicing a Suzuki GSX1300R application that calls for multiple 15710-21H00 injectors. The eight-piece quantity is a significant fit to the repair plan, so it is less suitable when only one injector is needed.

Listed on Amazon as: YVZ 8Pcs Fuel Injectors OE#15710-21H00 for Suzuki GSX1300R

#10

10. Bosch 0280158038

• Weight: 1.06 oz

Best for: OE-pattern single injector buyers.

Why it ranks #10: Bosch describes this as a single original-equipment port injector, but the supplied listing does not establish motorcycle fitment.

Bosch’s stated original spray patterns and precision flow rates are the central appeal of this single port fuel injector, giving buyers a specific OE-oriented performance focus. The listing also ties its design to low fuel consumption and emissions, particularly during starting and warm-up, where injector behavior can matter.

Precision flow rates paired with original spray patterns are presented as supporting performance across driving conditions, making those specifications relevant to buyers seeking an OE-style replacement. Bosch also states that the injector is engineered for low fuel consumption and emissions, particularly during starting and warm-up. It is sold as a single injector, so the quantity suits one-unit replacement rather than a multi-injector set; verify the application separately for a motorcycle.

Skip it if you need a confirmed multi-injector Harley set; SZKAIDAG 27709-06A lists two injectors for Harley 25-degree motorcycles.

This Bosch single injector suits buyers seeking the stated precision flow rates and original spray pattern in an OE-oriented component. The supplied details do not identify a motorcycle application, so confirm vehicle compatibility and quantity before choosing it.

Listed on Amazon as: BOSCH 0280158038 Original Equipment Port Fuel Injector – Single