MOPAR 5086811AA CP3 PUMP FUEL RETURN LINE FOR 03-07 DODGE WITH 5.9L CUMMINS ENGINE

Product Description

MOPAR 5086811AA CP3 PUMP FUEL RETURN LINE FOR 03-07 DODGE WITH 5.9L CUMMINS ENGINE

Maintain proper fuel system performance and restore OEM reliability with the genuine Mopar 5086811AA CP3 Pump Fuel Return Line for 2003-2007 Dodge Ram trucks equipped with the legendary 5.9L Cummins turbo diesel engine. This factory OEM fuel return tube is specifically engineered to route excess fuel safely from the CP3 injection pump back through the fuel system while maintaining proper fuel pressure and flow characteristics.

The Mopar 5086811AA fuel return line is built to withstand the high-pressure and high-temperature demands of the common rail Cummins fuel system. Over time, factory fuel return lines can become damaged, cracked, restricted, or contaminated, potentially leading to fuel leaks, pressure inconsistencies, and drivability concerns. Replacing worn fuel system plumbing with a genuine Mopar component helps maintain optimal fuel delivery, injection performance, and long-term diesel reliability.

Manufactured to strict OEM specifications, this direct-fit CP3 return line ensures precise routing, leak-free connections, and hassle-free installation without modifications. Unlike universal aftermarket fuel tubing, genuine Mopar fuel system components provide exact fitment and proper compatibility with factory CP3 injection pump assemblies.

This fuel return tube is commonly replaced during CP3 pump service, fuel system repairs, injector replacement, or contamination clean-up procedures on high-mileage 5.9L Cummins applications.

FAQ

What does the CP3 fuel return line do?
The return line routes unused fuel away from the CP3 injection pump and back through the fuel system to maintain proper fuel circulation and pressure balance.

Is this a genuine Mopar OEM fuel line?
Yes. The 5086811AA is a genuine OEM Mopar fuel return tube designed specifically for Dodge Ram Cummins diesel applications.

Will this fit both automatic and manual transmission trucks?
Yes. This return line is compatible with trucks equipped with both the 48RE automatic transmission and G56 6-speed manual transmission.

Can a damaged return line cause fuel leaks?
Yes. Cracked or corroded return lines can lead to fuel seepage, air intrusion, and fuel system performance issues.

Is installation direct fit?
Yes. This OEM Mopar fuel return tube is designed for direct replacement using factory mounting and routing locations.

Vehicle Fitment

• 2003 Dodge Ram 2500 5.9L Cummins Diesel
• 2003 Dodge Ram 3500 5.9L Cummins Diesel
• 2004 Dodge Ram 2500 5.9L Cummins Diesel
• 2004 Dodge Ram 3500 5.9L Cummins Diesel
• 2005 Dodge Ram 2500 5.9L Cummins Diesel
• 2005 Dodge Ram 3500 5.9L Cummins Diesel
• 2006 Dodge Ram 2500 5.9L Cummins Diesel
• 2006 Dodge Ram 3500 5.9L Cummins Diesel
• 2007 Dodge Ram 2500 5.9L Cummins Diesel
• 2007 Dodge Ram 3500 5.9L Cummins Diesel

Fits Select Trims Including:
ST, SLT, Laramie, Sport, TRX4, Big Horn, Lone Star

Specifications for Mopar 5086811AA