CP3 Pump Inlet Fitting

Features:

• Increases fuel flow by up to 70%
• Larger inner diameter for better performance
• Eliminates cavitation risk at CP3 pump inlet
• Optimizes CP3 fuel injection capability
• Reduces stress on high-pressure fuel system
• Ideal for high-performance fuel system upgrades
• Simple and direct installation
• Replaces restrictive stock 1/4 inch fitting
• Durable construction for long-term reliability
• Compatible with LB7, LLY, LBZ, and LMM engines

Unlock The Full Potential Of Your Fuel System

If you're serious about getting more power and reliability from your Duramax, upgrading the little things can make a big impact. The PPE CP3 Pump Inlet Fitting is one of those underrated game changers that helps you squeeze more performance out of your setup without breaking the bank. By simply swapping out the restrictive stock 1/4 inch inlet fitting, this high-flow upgrade gives your CP3 pump access to up to 70% more fuel. That means your engine gets exactly what it needs when you're pushing it on the highway, hauling loads, or dialing in other mods. It also cuts down on the strain your CP3 pump experiences when trying to pull fuel under pressure. The result? A stronger, more responsive system that delivers consistent fuel and keeps your truck running smoother and more reliably, mile after mile. Whether you're doing a full build or just replacing weak links, this fitting is a smart and simple upgrade to get more out of your Duramax.

Designed To Maximize Flow And Prevent Damage

The PPE 113060601 CP3 Pump Inlet Fitting is engineered for one key purpose, fuel flow efficiency. Built with a larger internal diameter than the factory unit, this precision-machined fitting reduces inlet restriction and allows fuel to move freely into your CP3 pump. That added volume not only supports higher horsepower applications but also eliminates the risk of cavitation caused by suction strain on the injection pump. This is especially important in performance or tuned setups where demand on the fuel system is greater than stock. The fitting is made to exact specs to provide a secure, leak-free fit and long-term durability under pressure. Its compatibility with LB7, LLY, LBZ, and LMM Duramax engines makes it a versatile solution for a wide range of trucks from 2001 to 2010. Whether you're chasing performance gains or simply trying to keep your system running efficiently, this upgrade helps your CP3 operate at peak performance with less stress and greater longevity.

Fits: 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Notes:

• Replaces the restrictive 1/4 inch stock CP3 inlet fitting
• Improves fuel flow efficiency by up to 70%
• Helps prevent cavitation damage to CP3 injection pump
• Optimizes fuel delivery for better pump performance
• Especially beneficial for high-performance fuel systems
• Ideal for tuned or upgraded Duramax applications
• Direct-fit upgrade for simple installation
• Supports LB7, LLY, LBZ, and LMM Duramax engines
• Designed to maximize fuel volume to CP3 pump
• Recommended for trucks with high fuel demand or dual CP3 setups