Toyota 4runner

Precision Auto Injectors

Toyota 4Runner Fuel Injectors

Rebuilt genuine OEM and Bosch upgrade fuel injector sets for select Toyota 4Runner 2.4L, 3.0L, 3.4L, and 4.7L gasoline engines.

Find Your 4Runner Injector Set
You do not need to know an injector part number to get started. Begin with your 4Runner year and engine size. Some model years were available with more than one engine, so do not purchase an injector set based only on the vehicle model.

Find the right 4Runner injector set in three steps

1. Start with your year
Example: 1997 Toyota 4Runner.
2. Confirm your engine
Check whether your 4Runner has the 2.4L, 3.0L, 3.4L, 4.0L, or 4.7L engine.
3. Match the listing
Use the chart and direct product links below or contact us for fitment help.

Toyota 4Runner fuel injector fitment guide

Toyota 4Runner fuel injector fitment depends on the model year, engine code, original injector number, and fuel-system design. Match all available vehicle and injector information before ordering.

4Runner Years Engine or Application Injector Information Direct Product Link
1989-1995 2.4L I4
22R-E		 Bosch 4-hole upgrade
Replaces Denso 23250-65040
Harness adapters included 		Shop 1989-1995 4Runner 2.4L Injectors
1988-1995 3.0L V6
3VZ-E		 Bosch 4-hole upgrade
Replaces Denso 23250-65020
Harness adapters included 		Shop 1988-1995 4Runner 3.0L Injectors
1996-1998 3.4L V6
5VZ-FE		 23250-62030
23209-62030
Genuine OEM Denso 		Shop 1996-1998 4Runner 3.4L Injectors
2005-2009 4.7L V8
2UZ-FE VVT-i		 23209-0F020
23250-50060
Denso 297500-0130 		Shop 2005-2009 4Runner 4.7L Injectors

Important: For a 1988 3.0L 4Runner, confirm that the original injector is 23250-65020. The 23250-62030 set shown here is listed for 1996-1998 3.4L applications. Later 3.4L models may use a different injector. The 4.0L 1GR-FE V6 does not use the 23209-50030 3UZ-FE V8 injector set.

Not sure which 4Runner injectors fit?

You do not need to remove an injector before contacting us. Your vehicle information is enough to begin narrowing the options.

Have your 4Runner year, engine size, and VIN ready. For early models, the original injector number may also be needed before fitment can be confirmed.

Shop Toyota 4Runner fuel injector sets

Choose the direct product listing that matches your 4Runner year, engine, and original application. Review the complete product-page fitment information before ordering.

1989-1995 Toyota 4Runner 2.4L

Engine: 2.4L I4 22R-E

Application: 1989-1995 Toyota 4Runner

Replaces: Denso 23250-65040

Includes: Set of 4 rebuilt Bosch upgrade injectors and harness adapters

Design: Four-hole Bosch upgrade for the original 22R-E application

Shop 4Runner 22R-E Injector Set
1988-1995 Toyota 4Runner 3.0L

Engine: 3.0L V6 3VZ-E

Application: 1988-1995 Toyota 4Runner

Replaces: Denso 23250-65020

Includes: Set of 6 rebuilt Bosch upgrade injectors and harness adapters

Important: A 1988 vehicle must have the original 23250-65020 injector.

Shop 4Runner 3VZ-E Injector Set
1996-1998 Toyota 4Runner 3.4L

Engine: 3.4L V6 5VZ-FE

Application: 1996-1998 Toyota 4Runner

Injector numbers: 23250-62030 / 23209-62030

Includes: Set of 6 rebuilt genuine OEM Denso injectors

Important: Do not assume this set fits later 1999-2002 3.4L models.

Shop 4Runner 5VZ-FE Injector Set
2005-2009 Toyota 4Runner 4.7L

Engine: 4.7L V8 2UZ-FE VVT-i

Application: 2005-2009 Toyota 4Runner

Injector numbers: 23209-0F020 / 23250-50060

Denso number: 297500-0130

Includes: Set of 8 rebuilt genuine OEM injectors

Shop 4Runner 2UZ-FE Injector Set
View All Toyota 4Runner Injectors

Common signs of a failing Toyota 4Runner fuel injector

A dirty, restricted, leaking, or electrically failing fuel injector may contribute to the symptoms below. These problems can have other causes, so the vehicle should be properly diagnosed before parts are replaced.

  • Rough idle or unusual engine vibration
  • Hard starting or a longer-than-normal crank time
  • Engine misfire or an illuminated check-engine light
  • Hesitation or weak acceleration
  • Reduced fuel economy
  • Fuel odor, dark exhaust smoke, or an emissions-test failure

Concerned about a possible injector leak? Read our Fuel Injector Leak Symptoms and Diagnosis Guide.

Why buy 4Runner fuel injectors from Precision Auto Injectors?

We make it easier to purchase Toyota 4Runner fuel injectors with direct product links, fitment support, clear warranty coverage, and customer-friendly returns.

Genuine injector options The listings shown here use genuine OEM injector cores or application-specific rebuilt Bosch upgrade injectors.
Warranty protection Injector sets purchased directly through our website are supported by the warranty stated on the individual product page.
60-day return period Our return policy allows qualifying orders to be returned within 60 days of delivery.
Real customer support Contact our team for help with 4Runner fitment, ordering, returns, or warranty questions.

How we rebuild and test your 4Runner fuel injectors

Every set is professionally rebuilt and tested in-house. Our process cleans the injectors inside and out, checks how each injector performs, and matches the completed set for balanced fuel delivery.

ASNU fuel injector testing benches at Precision Auto Injectors
1. Initial inspection Each injector core is identified and inspected before the rebuilding process begins.
2. Ultrasonic cleaning The injectors are ultrasonically cleaned and reverse flushed to help remove deposits from the internal fuel passages.
3. Electrical testing Each injector is electrically tested to confirm that it responds properly before performance testing.
4. Leak and spray testing The injectors are checked for leaks and tested to make sure each spray pattern is clean and consistent.
5. Dynamic flow testing The injectors are run on our ASNU test benches so their fuel delivery can be measured under controlled operating conditions.
6. Flow matching and final assembly The injectors are matched as a complete set, and new service components are installed as applicable before final inspection and packaging.

This 4Runner fitment guide was reviewed using the current Precision Auto Injectors product catalog. Because Toyota fitment can vary by engine, production date, and original injector number, final compatibility should be confirmed before installation. Learn more about Precision Auto Injectors or review our fuel injector cleaning and testing service.

Toyota 4Runner fuel injector questions

How do I know which fuel injectors fit my Toyota 4Runner?

Start with your 4Runner year and engine size. Then compare that information with the fitment chart and injector numbers above. Contact us with your VIN if you still cannot identify the correct set.

Are all Toyota 4Runner fuel injectors the same?

No. The 4Runner has used several different four-cylinder, V6, and V8 engines. Injector fitment changes with the year, engine code, and fuel-system design.

Which injectors fit a 1989-1995 Toyota 4Runner?

A 2.4L 22R-E model uses the Bosch four-hole upgrade set that replaces 23250-65040. A 3.0L 3VZ-E model uses a different six-injector Bosch upgrade set that replaces 23250-65020.

Which injectors fit a 2005-2009 4Runner with the 4.7L V8?

The compatible 4.7L 2UZ-FE VVT-i application uses the 23209-0F020, 23250-50060, and Denso 297500-0130 injector family shown on this page.

Do rebuilt 4Runner fuel injectors need programming?

The stock-replacement injectors and application-specific Bosch upgrade sets shown here do not normally require performance tuning when the correct set is installed in its listed application. Follow the correct Toyota installation and service procedures.

Need help choosing your 4Runner injector set?

Call us before ordering. We will help narrow your options using your 4Runner year, engine size, VIN, and original injector information when available.

Call 407-536-4509 for Fitment Help