Why is a CP3 conversion recommended for the LML Duramax engine?

The factory CP4 injection pump used in LML Duramax engines has a reputation for being less reliable than the older CP3 pump, particularly with aftermarket tuning or lower quality fuel. This kit replaces the CP4 with a more robust CP3, offering improved durability and reducing the risk of costly fuel system failures.

What components are included in this Fleece Performance CP3 conversion kit?

This kit includes a heavy-duty CP3 injection pump, along with all the necessary adapters, fuel lines, and mounting hardware required to complete the conversion from the stock CP4 pump to the CP3.

Are there any restrictions on shipping this product?

Yes, this kit is not CARB approved and cannot be shipped to California due to emissions regulations. Please check local regulations if you are outside of California.

Fleece Performance 11-16 GM 2500/3500 Duramax LML CP3 Conversion Kit w/HD CP3

Specifications

Brand: Fleece Performance
Part #: FPE-LML-CP3-10
UPC: 670875717756

Fleece Performance 11-16 GM 2500/3500 Duramax LML CP3 Conversion Kit w/HD CP3

Name: Fleece Performance 11-16 GM 2500/3500 Duramax LML CP3 Conversion Kit w/HD CP3
Brand: Fleece Performance
Price: 2827.71 USD
Availability: InStock

$2827.71

Only 3 left in stock

Fits 2011-2016 Chevy Silverado 2500/3500 HD. Fleece Performance CP3 conversion kit with HD CP3 pump.

Key Features

Fits 2011-2016 Chevrolet Silverado 2500 HD, 2011-2016 Chevrolet Silverado 3500 HD, 2011-2016 GMC Sierra 2500 HD, and 2011-2016 GMC Sierra 3500 HD.
Replaces the factory CP4 injection pump with a more durable and reliable CP3 pump.
Includes a heavy-duty CP3 injection pump.
Comes with all necessary adapters, lines, and mounting hardware for the conversion.
Designed to improve fuel system reliability and prevent failures associated with the stock CP4 pump.
A popular upgrade for LML Duramax engines, especially those with aftermarket tuning.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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Will this fit your vehicle?

Product Details

If you're working on a 2011-2016 Chevrolet Silverado 2500 HD or 3500 HD with the LML Duramax engine, this CP3 conversion kit from Fleece Performance is designed to upgrade your fuel system. The factory CP4 injection pump in these trucks has known reliability issues, especially when running aftermarket tuning or dealing with poor fuel quality. This kit replaces the problematic CP4 with a more robust and proven CP3 injection pump, offering improved durability and consistent fuel delivery.

This kit includes a heavy-duty CP3 pump, specifically chosen for its ability to handle the demands of modified Duramax engines. You'll also get all the necessary components to adapt the CP3 to your LML engine, including mounting brackets, fuel lines, and wiring adapters. The CP3 pump is well-known in the diesel community for its solid construction and reliable performance, making it a popular choice for truck owners looking to prevent costly fuel system failures. Installing this kit means you can have more confidence in your fuel system's ability to perform under various conditions, whether you're towing heavy loads or running a tuned engine.

This conversion is a significant upgrade for LML Duramax owners concerned about fuel system longevity. It's important to note that this kit is not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for detailed guidance on the conversion process.