• Industrial Injection Bosch Disaster CP3 Conversion Kit - Duramax 6.6L LML, Emissions Intact | 2015-2016 GMC Sierra 2500 - Stateside Performance - Fuel Systems - Industrial Injection - Industrial Injection Bosch Disaster CP3 Conversion Kit - Duramax 6.6L LML, Emissions Intact | 2015-2016 GMC Sierra 2500
1 1

IND4G6106

Industrial Injection

Industrial Injection Bosch Disaster CP3 Conversion Kit - Duramax 6.6L LML, Emissions Intact | 2015-2016 GMC Sierra 2500

Industrial Injection Bosch Disaster CP3 Conversion Kit - Duramax 6.6L LML, Emissions Intact | 2015-2016 GMC Sierra 2500

$7,339.78 USD
$7,339.78 USD
Sale Sold out
Shipping calculated at checkout.

The Industrial Injection Bosch Disaster CP3 Conversion Kit fits the 2015-2016 GMC Sierra 2500 6.6L LML Duramax and replaces the failure-prone factory CP4.2 pump with a proven Bosch CP3.

This kit keeps your emissions equipment intact, protecting your truck from catastrophic fuel system contamination.

Install Difficulty: Professional Install Only
Requires removal of the factory CP4.2 pump, high-pressure fuel line work, and precise bleeding of the diesel fuel system; typically takes 6-8 hours on a vehicle lift with diesel-specific tools.

Product Overview

The CP4.2 pump used on the LML Duramax is known for self-destructing and sending metal debris through the entire fuel system. This conversion swaps it for a reliable Bosch CP3, the same pump used on the bulletproof LB7, LLY, and LBZ Duramax engines.

The kit is engineered to retain all factory emissions components, keeping your Sierra 2500 street legal and inspection ready. Installation replaces the pump, adapter, and fuel lines needed to run the CP3 on the LML platform.

Features & Specifications

  • Fits: 2015-2016 GMC Sierra 2500
  • Fits 6.6L LML Duramax diesel only
  • Replaces failure-prone factory CP4.2 with proven Bosch CP3 pump
  • Emissions intact design retains all factory emissions equipment
  • Prevents catastrophic fuel system contamination from CP4.2 failure
  • Includes pump, adapter, and required fuel lines
  • Same CP3 pump proven on LB7, LLY, and LBZ Duramax engines
  • Street legal and inspection ready

Fitment

This part fits the following vehicles:

Year Make Model Submodel
2015-2016 GMC Sierra 2500 All
⚠ Submodel Fitment: If your submodel is not listed in the fitment table above, we cannot confirm fitment. Please contact us before purchasing to verify.

Shipping & Returns

Tracking is typically provided within 3–5 business days; items shipping direct from the manufacturer may take 5–7. Some items are made to order or may be backordered. Questions about stock? Reach us through live chat or email.

Warranty

All warranties are through the manufacturer and are facilitated by Stateside Performance. Some manufacturers require the end user to contact them directly; in that case we will point you to the right contact. Email us with any warranty questions.

View full details

  • Free shipping over $250

    Free shipping applies to items that are shipped via ground through UPS or FedEx and are over $250 going to the continental 48 states. This does not apply to Alaska or Hawaii, and does not apply to any item(s) that are shipped via freight or with any other option other than ground shipping.

    Shipping policy 

  • 30-day returns

    Returns must be requested within 30 days of delivery. Parts must be new, unused, uninstalled, and in original packaging, with an RMA. Some items are final sale.

    Return policy