LBZ | LMM Duramax New Bosch CP3 Fuel Pump — 0445020105

New Bosch CP3 fuel pump 0445020105 for 2006–2010 GM 6.6L Duramax LBZ and LMM. Brand-new OEM high-pressure injection pump with fuel pressure regulator. Direct-fit replacement. No core charge.

When a worn CP3 starts dropping rail pressure, hard starts, rough idle, low power, and injector issues follow. This Bosch 0445020105 is the correct new OEM pump for LBZ and LMM Duramax engines.

It is a 100% new common-rail CP3 (radial 3-piston, gear-driven), manufactured with OE tooling and processes. Every unit is tested on OEM equipment to original specs so you get the same fit, function, and fuel delivery as the pump that left the factory.

A new fuel pressure regulator (MPROP / FCA) is installed. This is a stock-output replacement—ideal for a reliable daily driver, tow rig, or as a solid base before any performance work.

Fits

• 2006–2007 GM 6.6L Duramax LBZ
• 2007.5–2010 GM 6.6L Duramax LMM
• Chevrolet Silverado 2500HD / 3500HD
• GMC Sierra 2500HD / 3500HD
• Select Express / Savana 2500–3500 and other 6.6L Duramax applications of those years

Confirm engine code (LBZ or LMM) and that the 8th VIN digit is D or 6. Does not fit LB7, early LLY, LML (CP4), or L5P.

What’s included

• Brand-new Bosch CP3 injection pump
• New fuel pressure regulator (installed)
• Mounting O-ring

Highlights

• Genuine Bosch new pump — not remanufactured
• Direct OEM fit, form, and function
• Built with OE tools, processes, and latest updates
• End-of-line tested to factory specs
• Restores consistent high-pressure fuel to the common rail
• Helps recover idle quality, throttle response, and reliability
• No core charge on new units

Replaces / cross-reference
0445020105 · 0 445 020 105 · 0445020037 · 0 445 020 037 · 0986437332 · 0 986 437 332 · GM 97361351 · 97780161 · 8973613516 · 2451300004 · 502554 · 739105 · and related OE numbers.

Replace filters, inspect supply pressure, and address any contaminated fuel before install so the new pump is not damaged.