Air and Fuel› Fuel Pumps, Regulators and Components

S&S Diesel

Duramax 14mm CP3 High Speed (1 850 mm3 /rev displacement) New LBZ-based

$2,900.00

SKU: S09R CP3-DMX-14-HS

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $200
$100 Minimum Order
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The S&S Diesel 14mm High Speed Stroker CP3 Pump is a brand new LBZ-based pump engineered for high-performance Duramax applications. This pump is optimized for efficient fuel delivery beyond 4,000 RPMs, eliminating fuel flow restrictions found in stock CP3s at 3,000 RPM. It features an increased displacement of 1,850 mm³/rev and a peak output of approximately 450+ L/Hr at 5,000 RPM. Designed to support fueling requirements from 500 to 1,400 horsepower in a single pump configuration, each unit is fully tested and includes a data sheet for proper calibration. This pump is built from the latest generation Bosch CP3NH base. Custom tuning is required for installation on 2001-2005 LB7 and LLY engines, and LB7 installations specifically require modification of the regulator connectors. This pump can also be used in an LML CP3 Conversion (tuning may be required). It's a brand new pump, so no core is needed.
Show original supplier description
Duramax 14mm CP3 High Speed (1 850 mm3 /rev displacement) New LBZ-based

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandS&S Diesel
Part NumberS09R CP3-DMX-14-HS

Videos

About MOTORMIA

5,000+ Trusted brands
1M+ Enthusiasts
5M+ Parts sold

Buy with Confidence

Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy

Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

View Full Shipping Policy