Low rail pressure, long cranking, or metal in the fuel system are common signs of a failing CP3 pump. The Bosch 0986437303 is a remanufactured CP3 high-pressure injection pump for LB7 Duramax 2001-2004.

Match your OE pump number and install with clean fuel and a healthy low-pressure supply so the new high-pressure pump is not damaged on startup.

What you get

• Bosch 0986437303 CP3 high-pressure injection pump
• Remanufactured by Bosch
• Fitment: LB7 Duramax 2001-2004
• OE / cross references: Reman: F00E2004339NW
• Warranty: 2 Year (as listed)
• Refundable core charge applies — returned when your old pump is sent back per our core terms

Specs

• Part number: 0986437303
• Type: CP3 high-pressure injection pump
• Condition: Remanufactured
• Manufacturer: Bosch
• New alternate: 0445020017

Pair with clean filters and a healthy lift pump or tank module so the high-pressure pump is protected. A refundable core charge is added at checkout and refunded when your old pump is returned per our core terms. Verify fitment for your truck before ordering.