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Genuine OEM GM Diesel Exhaust Fluid Pumps

84655057 - : Diesel Glow Plug Wiring Harness for GM Image

Diesel Glow Plug Wiring Harness

This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
$60.53
MSRP $88.55
Save $28.02
31.6% Off
15818881 - : Diesel Fuel Only Label for GM Image

Diesel Fuel Only Label

This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
$18.83
55490628 - : High Pressure Diesel Fuel Sensor for GM Image

High Pressure Diesel Fuel Sensor

Silverado, sierra. Diesel. Signals the PCM to monitor fuel supplied to the engine Designed to accurately monitor fuel tank pressure
$74.06
MSRP $123.48
Save $49.42
40% Off
40009018 - : 2.8L 4-Cylinder Diesel Engine Assembly for GM Image

2.8L 4-Cylinder Diesel Engine Assembly

Express, savana. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors .
$11,300.47
55496294 - : Diesel Glow Plug Wiring Harness for GM Image

Diesel Glow Plug Wiring Harness

Silverado, sierra. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
$47.06
MSRP $67.71
Save $20.65
30.5% Off
12731639 - : 6.6L 8-Cylinder Diesel Engine Assembly for GM Image

6.6L 8-Cylinder Diesel Engine Assembly

Silverado, Sierra 2500 HD. Silverado, Sierra 3500 HD.
$17,008.78
84384726 - : Exhaust Muffler with Exhaust Pipe for GM Image

Exhaust Muffler with Exhaust Pipe

3.6L, code adfl. 3.0L twin-turbo, code adfl. CT6. 3.6l. Has the necessary components to service your vehicle's exhaust muffler Helps...
$806.18
MSRP $1,164.21
Save $358.03
30.8% Off
84808048 - : Exhaust Muffler with Exhaust Pipe for GM Image

Exhaust Muffler with Exhaust Pipe

Has the necessary components to service your vehicle's exhaust muffler Helps diminish the amount of noise emitted by your vehicle's...
$901.86
MSRP $1,302.39
Save $400.53
30.8% Off
84405082 - : Exhaust Muffler with Exhaust Aftertreatment for GM Image

Exhaust Muffler with Exhaust Aftertreatment

Coupe, 3.6L. Has the necessary components to service your vehicle's exhaust muffler Helps diminish the amount of noise emitted by your...
$1,376.05
MSRP $2,004.60
Save $628.55
31.4% Off
84021297 - : Exhaust Muffler with Exhaust Pipe for GM Image

Exhaust Muffler with Exhaust Pipe

Silverado, Sierra 2500 HD. Gas. Crew cab. Long box. Silverado, Sierra 3500 HD. Has the necessary components to service your vehicle's...
$580.29
MSRP $823.68
Save $243.39
29.5% Off
84021299 - : Exhaust Muffler with Exhaust Pipe for GM Image

Exhaust Muffler with Exhaust Pipe

Has the necessary components to service your vehicle's exhaust muffler Helps diminish the amount of noise emitted by your vehicle's...
$471.47
MSRP $669.21
Save $197.74
29.5% Off
84021294 - : Exhaust Muffler with Exhaust Pipe for GM Image

Exhaust Muffler with Exhaust Pipe

Silverado, Sierra 2500 HD. Gas. Double cab. Short box. Silverado, Sierra 3500 HD. Has the necessary components to service your vehicle's...
$704.63
MSRP $1,017.56
Save $312.93
30.8% Off

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The Purpose of a Diesel Exhaust Fluid Pump for your Chevy or GMC

A diesel exhaust fluid (DEF) pump serves a critical role in the selective catalytic reduction (SCR) system of modern diesel vehicles, including Chevy and GMC trucks.

This Diesel pump has the primary purpose of delivering fluid to the SCR system to help reduce harmful emissions, particularly nitrogen oxides (NOx). Diesel exhaust fluid, typically consists of deionized water, is injected into the exhaust stream to convert NOx into harmless nitrogen gas and water vapor, reducing the environmental impact of diesel engines.

DEF pumps are particularly important for Chevy and GMC trucks because these vehicles often have powerful diesel engines used for towing, hauling, and heavy-duty work. Proper DEF injection is crucial to comply with emissions regulations and maintain efficient engine performance.

Functionality and Signs of a Failing Chevy or GMC DEF Pump

The DEF pump draws DEF fluid from the tank and pressurizes it for injection into the exhaust. Signs of a failing DEF pump in a Chevy or GMC vehicle may include:

  • Illuminated Warning Light: An illuminated DEF warning light on the dashboard is a clear indication of a potential DEF pump issue.
  • Reduced Engine Performance: A decrease in engine power or acceleration may result from improper DEF injection.
  • Exhaust Smoke and Emissions: Excessive smoke or emissions may suggest a problem with the DEF system.
  • Error Codes: Diagnostic trouble codes related to the DEF system may appear in the vehicle's computer system.

Save Money on Genuine Chevy Diesel Pump Parts

When it comes to critical components like DEF pumps, using authentic GM parts provides peace of mind, reliability, and confidence in your vehicle's environmental responsibility and performance or Chevy and GMC truck owners, finding affordable replacement parts, such as DEF pumps, is crucial. You can save up to 35% off retail prices by shopping online for genuine GM diesel parts. If you have any questions, feel free to reach us on our contact page.