Fuel Injector for 1999-2007 Chevrolet Silverado 1500 & More - Standard FJ503

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$631.99
WARNING:California Proposition 65▾
MPN: FJ503
Item Package Quantity: 1
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Standard Ignition Fuel Injector P/N:FJ503
Standard Ignition Fuel Injector P/N:FJ503
$631.99

Standard FJ503 fuel injector for the 1999-2007 Chevrolet Silverado 1500 V6 4.3L and other vehicles sprays fuel into the engine in a metered, calibrated pattern. This is a new MFI injector that comes with its O-ring.

  • Corrosion-resistant brass terminals for more consistent performance
  • Stainless steel calibration slide and spring improve corrosion resistance
  • End-of-line tested and calibrated
  • Engine-specific, laser-drilled metering discs set fuel flow rate and spray pattern
  • High-precision, engine-specific nozzle for fuel atomization and efficient combustion
  • High-temperature Viton® O-rings seal in extreme conditions to prevent fuel leaks

Quick facts

  • Part: Standard FJ503 fuel injector
  • Fits: 1999-2007 Chevrolet Silverado 1500 V6 4.3L and other vehicles
  • Condition: New

A rough idle, hesitation or weaker fuel economy can come from a worn or clogged injector. Spark plugs, ignition coils, the fuel pump or a sensor can be behind the same signs too, so find the cause before buying. This listing is one injector, and the 1999-2007 Chevrolet Silverado 1500 V6 4.3L takes one.

Fits

The vehicles it fits include the 1999-2007 Chevrolet Silverado 1500 V6 4.3L and the 2000-2002 Chevrolet C1500 V6 4.3L, and it works as a GMC Sierra 1500 fuel injector for the 1999-2007 V6 4.3L. If your vehicle isn't named here, open the Buyer's Guide tab and check your exact model and engine.

Specifications

Fit and size

  • Quantity per application: 1
  • System type: MFI
  • Terminals: 12, male pin

Build and materials

  • Type: MFI injector
  • Condition: New
  • Terminals: corrosion-resistant brass
  • Calibration slide and spring: stainless steel
  • O-rings: high-temperature Viton®
  • Country of origin: United States

In the box

One fuel injector with its O-ring.

Interchange: 2-38886 · 800-1512N
63885 · 12568332 · 19210688

This part cross-references / interchanges with the following part numbers:

63885, 2-38886, 12568332, 19210688, 800-1512N

Frequently Asked Questions

Is the Standard FJ503 a Chevy Silverado 1500 fuel injector for 1999-2007 trucks with the V6 4.3L?

Yes. Standard FJ503 fits the 1999-2007 Chevrolet Silverado 1500 V6 4.3L, with a quantity of 1 per application.

Is FJ503 a Chevrolet C1500 fuel injector for 2000-2002 models with the V6 4.3L?

Yes. Standard FJ503 fits the 2000-2002 Chevrolet C1500 V6 4.3L. For another model, use the Buyer's Guide tab to match your exact engine.

Does the Standard FJ503 fuel injector come with an O-ring?

Yes. This injector includes an O-ring, and the O-rings are high-temperature Viton® that seal in extreme conditions.

What kind of connector does this fuel injector have?

This injector has 12 male pin terminals made of corrosion-resistant brass. Its system type is MFI.

Is the Standard FJ503 tested before it ships?

Yes. Standard FJ503 is end-of-line tested and calibrated, and it is validated through lab, climate and real-world vehicle testing in the USA.