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Genuine OEM GM Diesel Exhaust Fluid Pumps

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55492261 - : Vapor Canister Purge Pump Bracket for GM Image

Vapor Canister Purge Pump Bracket

This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
$15.39
MSRP $21.80
Save $6.41
29.4% Off
55502476 - : Fuel Pump Fuel Return Hose for GM Image

Fuel Pump Fuel Return Hose

This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
$107.16
MSRP $180.18
Save $73.02
40.5% Off
11093891 - : Engine Oil Pump Cover Bolt for GM Image

Engine Oil Pump Cover Bolt

These are Sold Individually. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General...
$12.18
MSRP $16.92
Save $4.74
28% Off
84030303 - : Windshield Washer Pump Wiring Harness for GM Image

Windshield Washer Pump Wiring Harness

This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
$38.85
MSRP $55.89
Save $17.04
30.5% Off
12627026 - : Oil Pump Slide Pivot Pin for GM Image

Oil Pump Slide Pivot Pin

This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
$18.05
MSRP $25.54
Save $7.49
29.3% Off
19427079 - : Fuel Tank Fuel Pump Module for GM Image

Fuel Tank Fuel Pump Module

Some ACDelco Gold parts may have formerly appeared as ACDelco Professional Premium aftermarket replacement part Manufactured to meet...
$216.51
MSRP $367.12
Save $150.61
41% Off
19427078 - : Fuel Tank Fuel Pump Module for GM Image

Fuel Tank Fuel Pump Module

Some ACDelco Gold parts may have formerly appeared as ACDelco Professional Premium aftermarket replacement part Manufactured to meet...
$177.86
MSRP $301.58
Save $123.72
41% Off
92191903 - : Windshield Washer Pump Hose Connector for GM Image

Windshield Washer Pump Hose Connector

This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
Discontinued
84093495 - : Fuel Pump Fuel Return Hose for GM Image

Fuel Pump Fuel Return Hose

This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
$43.34
MSRP $62.35
Save $19.01
30.5% Off
23394000 - : Heater Water Auxiliary Pump Bracket for GM Image

Heater Water Auxiliary Pump Bracket

This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
$12.12
MSRP $19.24
Save $7.12
37% Off
23238124 - : Front Seat Back Lumbar Pump for GM Image

Front Seat Back Lumbar Pump

Operates a support mechanism in the seat back to allow for occupant posture control This GM Genuine Part is designed, engineered, and...
$75.93
MSRP $105.50
Save $29.57
28% Off
55579159 - : Oil Pump Suction Pipe Bolt for GM Image

Oil Pump Suction Pipe Bolt

These are Sold Individually. Fastens vehicle's components together This GM Genuine Part is designed, engineered, and tested to rigorous...
$10.20
MSRP $14.50
Save $4.30
29.7% 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.