Modified CP3 Pumps

2010-2018 Dodge Ram 2500 & 3500 6.7L Cummins High-Performance Modified & Stroker CP3 Pumps

Eliminate structural fueling restrictions, prevent computer-guided rail pressure drops, and optimize common-rail diesel atomization with premium 2010–2018 6.7L Cummins 4th Gen modified CP3 pumps from Full Force Diesel. While the factory high-pressure fuel pump is exceptionally dependable at stock power levels, it represents a strict bottleneck when scaling up performance parameters. Once you introduce larger aftermarket fuel injectors, aggressive electronic tuning, or larger turbochargers, the standard pump cannot displace enough volume to keep pace with demand. At wide-open throttle, rail pressure will plummet, causing erratic engine hesitation, high exhaust gas temperatures (EGTs), and lost acceleration. Upgrading to a single high-performance modified CP3 pump delivers massive fuel volume increases while retaining a clean, factory-like engine bay layout.

Understanding Stroker Metallurgy: Lengthened Profiles and Heavy-Duty Plungers

Modified high-pressure injection pumps overcome native delivery limitations through sophisticated internal machining and structural enhancements:

• Increased Displacement Without Dual Assemblies: For truck owners who want to avoid the extra belt routing, auxiliary controllers, and custom bracket plumbing of a dual-pump system, a modified single pump is the ultimate solution. These units bolt directly into the factory location on the front gear cover, maintaining a completely clean, OEM appearance under the hood while delivering up to two or three times the volume of a stock pump.

• Precision Stroker Engineering: Performance CP3 pumps achieve their massive flow gains by altering internal mechanical geometry. Precision builders utilize custom-ground internal camshafts with lengthened lobes to physically extend the stroke of the internal pistons. Combined with enlarged, micro-polished plungers and severe-duty check valves, these 10mm, 12mm, and 14mm stroker designs dramatically increase fuel displacement per revolution. Every internal component is micro-finished to minimize frictional heat and resist fatigue under extreme continuous operating pressures.

Rock-Solid Rail Pressure for Street, Towing, and Competition Blocks

Installing a single modified high-pressure pump completely transforms how your 4th Gen common-rail platform manages high-load fuel delivery:

• Flawless Fuel Atomization: By maintaining rock-solid rail pressure all the way to your maximum target tuning parameters, modified pumps force your fuel injectors to atomize diesel into an ultra-fine mist upon entering the combustion bowl. This facilitates a cleaner, more efficient burn, resulting in crisper throttle response, reduced tailpipe smoke, and lower operating temperatures under heavy fifth-wheel towing conditions.

• Advanced Electronics and Flow Integration: Our selection of performance pumps features high-precision Fuel Control Actuators (FCAs) or Electronic Pressure Regulators that sync perfectly with your Engine Control Module (ECM) data streams. This ensures crisp idle characteristics and smooth daily driveability while remaining ready to supply full fuel volume the instant you demand it. Whether you are assembling a 600-horsepower street-furloughed work truck or building a high-boost competition short block, a premium modified pump secure your fueling foundation.

At Full Force Diesel, we carry the rugged, street-proven fuel system components and machine-shop-certified internals your 4th Generation inline-six needs to remain completely dependable. Explore our complete selection of 2010–2018 6.7L Cummins 4th Gen modified CP3 injection pumps, high-displacement stroker pumps, severe-duty regulators, and performance fueling accessories above to secure your truck's rail pressure today.