2001-2004 Chevy/GMC 6.6L Duramax LB7 Remanufactured CP3 Injection Pump — Bosch 0 986 437 303
Bosch Remanufactured CP3 Injection Pump — 2001-2004 Duramax LB7
Factory-remanufactured by Bosch, the original equipment manufacturer. This CP3 pump restores full fuel system performance to your 2001–2004 6.6L Duramax LB7 — the first generation of GM’s common rail diesel platform.
What’s Included
- Bosch remanufactured CP3 injection pump
- New fuel pressure regulator (MPROP/metering unit)
- Mounting O-ring
Specifications
| Pump Type | Bosch CP3 (Common Rail 3rd Generation) |
| Bosch Part # | 0 986 437 303 |
| OEM Cross-Reference | 0 445 020 017, 0 445 020 005, GM 97720662, 97208073 |
| Max Pressure | 23,000 PSI (1,600 bar) |
| Condition | Bosch Remanufactured — OEM certified |
| Weight | ~20 lbs |
Vehicle Fitment
- 2001 Chevy Silverado / GMC Sierra 2500HD/3500 6.6L Duramax LB7
- 2002 Chevy Silverado / GMC Sierra 2500HD/3500 6.6L Duramax LB7
- 2003 Chevy Silverado / GMC Sierra 2500HD/3500 6.6L Duramax LB7
- 2004 Chevy Silverado / GMC Sierra 2500HD/3500 6.6L Duramax LB7 (early — VIN code 1)
- 2003-2004 Chevy Kodiak / GMC TopKick 6.6L LB7
Why Choose Bosch Reman Over Aftermarket?
Every Bosch remanufactured CP3 is completely disassembled, cleaned, inspected, and rebuilt with new seals and re-certified components on the same production equipment used for new pumps. Aftermarket “rebuilt” pumps vary wildly in quality — a Bosch reman is the only CP3 we trust to install in our own shop at Valley Fuel Injection & Turbo.
About Valley Fuel Injection
We’re a Bosch-authorized, Alliant Power dealer with 45+ years of diesel fuel injection experience. We test and rebuild injection pumps on Bosch-calibrated equipment daily. When you buy a CP3 from us, you’re buying from a shop that understands the entire fuel system — not a warehouse shipping boxes.
Need help diagnosing a CP3 issue? Call us at (530) 668-0818.
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