BD Diesel 1050496 Venom CP3 Conversion Kit for 11-16 Duramax 6.6L LML

Vehicle Fitment

• 2011-2016 Chevrolet Silverado 2500 HD/3500 HD (6.6L Duramax LML)
• 2011-2016 GMC Sierra 2500 HD/3500 HD (6.6L Duramax LML)

Fitment Notes

• For LML Duramax engines equipped with the factory Bosch CP4 injection pump only
• Standard pump version - a Venom-branded upgraded pump option is also available separately

Features

• Replaces failure-prone Bosch CP4 injection pump with proven Bosch CP3 design
• Complete kit - includes everything needed for installation
• No tuning required, plug-and-play installation
• Reduces risk of catastrophic pump failure and metal debris contamination
• Restores fuel system reliability closer to pre-2011 Duramax CP3 architecture

Specifications

• Compatible engine: 6.6L Duramax LML
• Pump type: Bosch CP3 (standard)
• Application: CP4-to-CP3 conversion

Included Components

• 1x Bosch CP3 standard fuel injection pump
• 1x Conversion hardware and fittings for CP4-to-CP3 swap

Product Description

The BD Diesel Venom CP3 Conversion Kit (1050496) addresses one of the most well-known reliability concerns on the LML Duramax: GM's 2011 switch to the Bosch CP4 injection pump, which is prone to catastrophic failure that can send metal debris throughout the entire fuel system, often resulting in repair bills exceeding $10,000. This kit backdates the fuel system to the proven Bosch CP3 pump used in earlier Duramax engines.

Designed as a complete, plug-and-play solution, the kit requires no tuning and includes everything needed for installation, making it a straightforward preventive upgrade for 2011-2016 6.6L Duramax owners who want to avoid CP4-related failures before they happen rather than after a costly repair.