Bosch 67421 fuel pump module for the 2002-2003 Chevrolet S10 V6 4.3L and other vehicles pumps fuel from the tank to the engine. The in-tank electric unit, also called a fuel pump assembly, delivers only the amount of fuel the injection system requires.
- Patented Turbine Pump technology virtually eliminates fuel pulsation, noise and hot-start problems of older pump designs
- Two layers of filtration protect the pump from debris and fuel system contamination
- Designed to operate in extreme temperatures and under low fuel conditions
- Electromagnetic shielding prevents on-board electronic interference from the fuel pump
- Every Bosch fuel pump is function tested at the end of the line
Quick facts
- Part: Bosch 67421 fuel pump module
- Also called: fuel pump assembly
- Fits: 2002-2003 Chevrolet S10 V6 4.3L and other vehicles
- Material: Mixed
- Condition: New
Hard starting, stalling, hesitation under load or a whine from the tank can mean the pump is worn. A failed fuel pump relay or a faulty fuel pressure regulator can produce similar symptoms, so track down the cause before replacing the module.
Fits
This module is a direct-fit replacement for the 2002-2003 Chevrolet S10 V6 4.3L and the 2002-2003 GMC Sonoma V6 4.3L.
Specifications
Fit and size
- Quantity per vehicle: 1
- Pieces: 1 module assembly
- Mounting type: in-tank
- Port quantity: 2
- Fuel delivery type: fuel injection
Build and materials
- Pump type: electric
- Material: mixed
- Seal material: synthetic or NBR rubber
- Condition: new
In the box
One module assembly with the fuel sending unit, filter, strainer, seal and wiring harness. The lock ring is not included, and the old one may not be reusable. This listing holds one module, and a 2002-2003 Chevrolet S10 V6 4.3L or a 2002-2003 GMC Sonoma V6 4.3L takes one.
Installation notes
- Designed for simple plug-and-play installation.
Interchange: 19331249
Frequently Asked Questions
Does the Bosch 67421 fuel pump module fit a 2002-2003 GMC Sonoma V6 4.3L?
Yes. Bosch 67421 fits the 2002-2003 GMC Sonoma V6 4.3L, and it also fits the 2002-2003 Chevrolet S10 V6 4.3L.
Does this fuel pump module come with the fuel sending unit and filter?
Yes. The box holds one module assembly with the fuel sending unit, filter, strainer, seal and wiring harness. The lock ring is not included.
What kind of pump is in the Bosch 67421 module?
It is an electric in-tank pump for fuel-injected engines. Bosch 67421 uses patented Turbine Pump technology and has two layers of filtration.
Could a whining tank and long cranking mean this in-tank fuel pump is wearing out?
They can, and stalling or hesitation under load are other signs. Testing fuel pressure involves the fuel system, so a shop should do it.
Is the Bosch fuel pump module plug-and-play?
Yes. This module is designed for plug-and-play installation and includes its wiring harness.
