Mopar 55116865AC Engine Coolant Reservoir Hose

Mopar 55116865AC Radiator Inlet Hose

The Mopar 55116865AC engine coolant reservoir hose is a direct-fit cooling system hose for select Jeep V8 applications. It is listed as a radiator inlet hose for 5.7L models, with fitment for the Jeep Commander and Jeep Grand Cherokee.

• OE Mopar replacement part for cooling system service
• Radiator inlet hose application for 5.7L engines
• Fits 2006-2010 Jeep Commander, N/A
• Fits 2005-2010 Jeep Grand Cherokee, N/A
• Supersedes Mopar part number 55116865AB

Application Details

This Mopar hose is identified for the radiator inlet side of the cooling circuit on 5.7L Jeep Commander and Jeep Grand Cherokee models. Use part number 55116865AC when replacing a worn, cracked, or leaking hose in the specified vehicle applications. This part number 55116865AC is also the updated replacement for 55116865AB.

Common Replacement Reasons

• Coolant seepage at the hose connection
• Cracking or hardening from heat cycling
• Soft spots, swelling, or hose collapse
• Cooling system leaks traced to the radiator inlet hose
• Service replacement for the original Mopar hose on Jeep Commander and Jeep Grand Cherokee

Installation Notes

Verify engine size and vehicle application before ordering. Inspect adjoining clamps, fittings, and coolant condition during replacement, and confirm the hose routing matches the original layout on the vehicle. After installation, refill and bleed the cooling system according to factory service procedures.

Quality Assurance

Mopar OE parts are built to match factory application requirements for Chrysler, Jeep, Dodge, and Ram vehicles. Part number 55116865AC is the correct OE-style service replacement for the listed Jeep Commander and Jeep Grand Cherokee applications.