Dynomite Diesel CP3-303 Stock Replacement CP3 | 2001-2004 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LB7

Features

• Direct OEM replacement for factory CP3 injection pump

• Precision remanufactured with brand-new internal components

• Includes new fuel pressure regulator for consistent performance

• Built to meet or exceed original specifications

• Ideal for restoring stock fuel system functionality

• More affordable alternative to buying a brand-new unit

• Backed by a 1-year unlimited mileage warranty

Restore Factory Fuel Delivery with Confidence

The Dynomite Diesel CP3-303 Stock Replacement CP3 is a premium remanufactured injection pump designed to bring your 2001–2004 GM 6.6L Duramax LB7 back to factory fuel system performance. Whether you’re experiencing hard starts, power loss, or inconsistent fuel pressure, this pump provides a reliable solution without the high cost of a brand-new unit. It’s rebuilt with new internals and a fresh fuel pressure regulator to maintain steady fuel delivery under all conditions.

A Practical and Proven Fuel System Fix

Ideal for stock or lightly modified Duramax builds, the CP3-303 is the go-to choice for drivers who need dependable fuel system performance. It’s an excellent option for daily-driven trucks, tow rigs, or anyone looking to extend the life of their LB7 without compromising reliability. Installation is straightforward, and a refundable core charge ensures proper recycling of the original pump.

Fitment

2001, 2002, 2003, 2004 Chevrolet Silverado & GMC Sierra 2500HD/3500HD 6.6L Duramax LB7

Fitment Notes

• Core charge applies; returning your original CP3 is required for core credit

• Not legal for sale or use in California due to emissions regulations