Restore factory fuel delivery with a professionally rebuilt set of four genuine OEM GM 25321369 fuel injectors. These injectors fit select 1999-2002 Chevrolet, Pontiac, and Oldsmobile vehicles equipped with the 2.4L DOHC four-cylinder engine.

Every core we use is an original GM OEM injector, sourced right here in the US.  We never use aftermarkets or replicas. Each set is professionally cleaned, serviced, tested, and flow matched on ASNU fuel injector testing equipment for consistent fuel delivery across all four cylinders.

What Is GM Fuel Injector 25321369?

GM part number 25321369 is an original-equipment fuel injector used in select General Motors vehicles with the 2.4L 146 CID DOHC four-cylinder engine. Applications include certain Chevrolet Cavalier, Chevrolet Malibu, Pontiac Sunfire, Pontiac Grand Am, and Oldsmobile Alero models.

This listing includes a complete set of four professionally rebuilt OEM fuel injectors. Because fitment can vary by model year, trim, and engine, verify the part number on your original injectors and review the complete compatibility list before ordering.

25321369 Fuel Injector Product Overview

• Complete set of four rebuilt OEM GM fuel injectors
• Primary OEM part number: 25321369
• Fits select GM 2.4L DOHC applications
• Original GM OEM injector cores, never aftermarket copies
• Inspected and electrically tested for proper operation
• Ultrasonically cleaned internally and externally
• Leak tested and spray-pattern verified
• Dynamically flow tested and matched as a complete set
• New internal filters and upper and lower O-rings installed
• Ready for direct installation
• Professionally rebuilt by Precision Auto Injectors in the USA
• Backed by our Lifetime Replacement Warranty

How We Rebuild and Test These Injectors

Each set undergoes a professional service and testing process designed to verify proper injector operation and balanced fuel delivery.

1. Original OEM injector cores are inspected for physical damage.
2. Injector coils and electrical operation are tested.
3. Injectors are cleaned externally and internally.
4. Internal deposits are removed through ultrasonic cleaning and flushing.
5. Old filters and O-rings are removed and replaced.
6. Each injector is tested for internal and external leakage.
7. Spray patterns are visually inspected for consistency.
8. Fuel delivery is measured under dynamic operating conditions.
9. The injectors are selected and flow matched as a complete set.
10. A final inspection is completed before packaging and shipment.

Why Choose Rebuilt OEM Fuel Injectors?

Your engine was originally designed around the electrical characteristics, fuel delivery, and spray pattern of its factory injectors. Some aftermarket replacements may physically fit while delivering different flow or spray characteristics than the original component.

Our rebuilt injectors retain the original GM injector body and factory design. Each injector is professionally serviced and tested on ASNU equipment, providing a properly matched OEM set without relying on unverified aftermarket reproductions.

Symptoms of Failing or Restricted Fuel Injectors

Fuel injector problems may contribute to one or more of the following symptoms:

• Rough or unstable idle
• Single-cylinder or random engine misfires
• Hesitation during acceleration
• Reduced engine power
• Hard starting or extended cranking
• Poor fuel economy
• Fuel odor or unusually rich exhaust
• Increased emissions or a failed emissions test
• Uneven performance between cylinders
• Check-engine light with misfire or fuel-trim codes

These symptoms can also be caused by ignition, compression, fuel-pressure, wiring, sensor, or engine-management problems. Proper diagnosis is recommended before replacing fuel injectors.

Fuel Injector Part Number

Primary OEM part number: 25321369

Injector appearance alone is not enough to confirm compatibility. Compare the number printed on your original injector and verify the vehicle year, make, model, trim, and engine before ordering.

Vehicle Compatibility

These injectors fit select 1999-2002 Chevrolet, Pontiac, and Oldsmobile vehicles equipped with the 2.4L 146 CID I4 Gas DOHC engine.

Frequently Asked Questions

Are these genuine OEM GM fuel injectors?

Yes. Every injector begins as an original GM OEM core. These are professionally rebuilt factory injectors, not newly manufactured aftermarket reproductions.

Does this listing include one injector or a complete set?

This listing includes a complete set of four rebuilt and flow-matched fuel injectors.

Are new O-rings included?

Yes. New internal filters and upper and lower O-rings are installed before shipment.

Are all four injectors flow matched?

Yes. The injectors are tested and selected to operate together as a balanced set.

Should I replace all four fuel injectors?

Replacing the complete set helps maintain consistent fuel delivery across all cylinders, especially when the original injectors are the same age and have been exposed to the same fuel and operating conditions.

Will these fit every GM vehicle with a 2.4L engine?

No. GM used different fuel injectors across various 2.4L engines and model years. Verify part number 25321369 and review the full vehicle fitment list before ordering.

Do these fuel injectors require programming?

These port fuel injectors generally do not require individual injector coding. Installation and diagnostic procedures should follow the proper service information for your vehicle.

Lifetime Replacement Warranty

Every set is backed by our Lifetime Replacement Warranty. Orders are also covered by our 60-day return policy with no restocking fee. We stand behind every injector we rebuild and sell.

Read our complete warranty policy.

Important: Compatibility information is provided as a guide. Always verify the injector part number and vehicle application before installation. Professional diagnosis and installation are recommended.