Free help & advice Learn more Hassle-free returns

Gift cards now available Learn more

  • Free help & advice

  • Hassle-free returns

  • Open 7 days a week

Need a better price? Reach out to us at (561) 207-7988 — we're happy to help.

SKU: L5P-CP3-10

CP3 Conversion Kit (2017+ Duramax L5P)

Regular price $4,136.00
Shipping calculated at checkout.

Pump

Care information

Display general product information or specific product information using metafields.

Delivery and Shipping

Add some general information about your delivery and shipping policies.

Add a stand out message for your customers

Highlight title

Text to highlight a key feature of your product

Description

Upgrade your 2017+ Duramax L5P with a high-performing CP3 conversion kit, designed to replace the troublesome factory HP4 pump. Available in 10mm, 12mm, and 14mm variations, each kit is equipped with the latest generation Bosch CP3NH pump, tailored to suit your performance needs. Whether you're looking for a more durable option for daily driving or you're pushing your truck to the limit in competitive scenarios, this kit delivers the power and reliability you demand.

Key Features:

  • Durable CP3 Pump: Offers superior durability compared to the HP4 pump, reducing the risk of fuel system failures.
  • High-Performance Variants: Choose between the 10mm (1,325 mm³/rev up to 4,500 RPM), 12mm (1,590 mm³/rev up to 4,000 RPM), or 14mm (1,850 mm³/rev up to 3,500 RPM) stroke versions, depending on your needs.
  • OE Quality Components: Features an OE-style injection-molded ECU mount, braided fuel supply lines, and quick-disconnect fittings to ensure easy installation and a precise fit.
  • Seamless Factory Integration: Compatible with the factory fuel supply pump for smooth operation.
  • Applications: Fits 2017-current GM 2500-5500 Duramax.

Power Breakdown by Pump Size:

  • 10mm Pump: Supports up to 800 RWHP
  • 12mm Pump: Handles up to 1,000 RWHP
  • 14mm Pump: Built for 1,000+ RWHP for extreme power builds

Why Upgrade to a CP3 Conversion? The CP3 pump is renowned for handling high pressures and harsh conditions, making it a reliable choice for anyone looking to avoid costly fuel system repairs. With the 10mm, 12mm, and 14mm options, you can tailor the kit to your truck's performance level—whether it’s for daily driving or high-performance applications.

Note: Tuning required for installation. For competition use only. Not for sale in California.

Payment & Security

Payment methods

  • Amazon
  • American Express
  • Apple Pay
  • Discover
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

Product features

Use this section to highlight specific product features to your customers.

Product comparison grid

Add content here to explain a bit about the range of products on offer and which ones may be most suitable for your customers.

A table comparing the facets of 4 products
Facet
Product title
View details
Product title
View details
Product title
View details
Product title
View details
By
ByProduct vendorProduct vendorProduct vendorProduct vendor
Price
Price
$99.99
$99.99
$99.99
$99.99
Description
DescriptionA description of the product, including details such as build quality, materials used and reasons to purchase.A description of the product, including details such as build quality, materials used and reasons to purchase.A description of the product, including details such as build quality, materials used and reasons to purchase.A description of the product, including details such as build quality, materials used and reasons to purchase.

Our Collections

Image banner

Share information about your brand with your customers. Describe a product, make announcements, or welcome customers to your store.