Bosch CP3 Injection Pump 0986437303 2001-2004 GM 6.6L Duramax LB7

SKU: 0 986 437 303 UPC: 77212018048
In stock - 18 items available
Regular price $862.99
Regular price -17% $1,041.31 Sale price $862.99
Core return icon

I acknowledge a $240 Core Charge will be added to my order. Core Refunds are issued after the eligible core is returned and approved. This $240.00 fee will be added to your cart.

Have a question about this part? We'll answer it.

Verified Fitment & Application Support

This product is selected for proper fitment and compatibility with the listed engine application. Our team is available to assist with fitment questions, installation considerations, and supporting components to ensure a smooth install and reliable performance.

Compliance & Restrictions
California Proposition 65 (Prop 65)
WARNING: This product can expose you to chemicals which is known to the State of California to cause cancer and/or reproductive harm. For more information, visit www.P65Warnings.ca.gov.
CARB / California Emissions Compliance
This item may be restricted in California and other regions with emissions regulations. If applicable, it is intended for competition/off-road use only unless otherwise stated. It is the customer’s responsibility to confirm local compliance before purchase. Orders shipping to restricted areas may be canceled.

Remanufactured Bosch CP3 high pressure fuel injection pump, part number 0 986 437 303, for the 2001-2004 GM 6.6L Duramax LB7. The CP3 generates the rail pressure the common rail injection system depends on, and a failing pump shows up as low rail pressure codes, hard starting, and pressure that falls off under load. Remanufactured by an original equipment supplier and fit, form, and function tested.

Key Features

  • Bosch CP3 common rail high pressure pump
  • Remanufactured by an original equipment supplier
  • Fit, form, and function tested to meet or exceed OE specification

Fitment

  • Chevrolet Silverado 2500 HD and 3500 (2001-2004)
  • GMC Sierra 2500 HD and 3500 (2001-2004)
  • 6.6L Duramax, LB7

This is the LB7 pump. The LLY engine that followed in 2004.5 uses a different CP3, so match the number on your existing pump before ordering.

Product Details

  • Brand: Bosch
  • Manufacturer Part Number: 0 986 437 303 (also listed as 0986437303)
  • Engine family: LB7
  • Condition: Remanufactured
  • Sold each; a core charge applies and your rebuildable core is returnable

Chevrolet Silverado 2500 HD (2001-2004), Chevrolet Silverado 3500 (2001-2004), GMC Sierra 3500 (2001-2004), GMC Sierra 2500 HD (2001-2004)

0 445 020 005, 0 445 020 017, 0 986 437 303, 0445020005, 0-445-020-005, 0445020017, 0-445-020-017, 0986437303, 0-986-437-303, 2451300002, 245-130-0002, 2900711100, 502551, 502-551, 739103, 739-103, 8972080734, 97208073, 97720662, DA2251054, DT660005R, DT97720662R, F 00E 200 433, F 00E 200 523, F00E200433, F-00E-200-433, F00E2004339NW, F00E200523, F-00E-200-523, HPP7303, R986437303

Shipping Height: 8.07

Shipping Length: 14.76

Shipping Width: 9.45

Rebuilt by Techs Who Only Do Diesel

Injectors, pumps, and turbos, serviced by people who've been doing this for decades — not a parts counter with a catalog.

Get A Quote