Dorman 918-589 Power Steering Cooler

Power Steering Cooler for Ram HD

Dorman 918-589 is a direct-fit power steering cooler for select Ram 2500 and Ram 3500 trucks from 2012-2018. It is built to match the original cooler’s fit and function, with aluminum construction and quick-connect fittings for a straightforward OE-style replacement.

Key Features

• Direct replacement power steering cooler for select Ram 2500 and Ram 3500 applications
• Aluminum construction for dependable heat transfer and durability
• Black finish for a clean OE-style appearance
• Quick connect inlet and outlet fittings for factory-style plumbing
• Designed around the original cooler’s dimensions and connection points
• Part number: 918-589

Detailed Description

This Dorman power steering cooler is engineered for 2012-2018 Ram 2500 and 2012-2018 Ram 3500 trucks that use the factory-style cooler layout. With a 22-inch length, 5-inch overall width, and compact 4-inch height and thickness, it is shaped to align with the original system packaging. The aluminum core supports efficient fluid cooling, while the quick connect fittings help maintain the OE hose connection style. If you are replacing a leaking, damaged, or restricted cooler on a Ram 2500 or Ram 3500, Dorman 918-589 provides a direct-fit service part for the steering hydraulic circuit.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What It Helps Address

• Power steering fluid overheating during towing or heavy-duty use
• Leaks caused by corrosion, impact damage, or aged cooler lines
• Restricted fluid flow from a damaged or internally compromised cooler
• Noise or steering effort concerns related to overheated steering fluid
• Replacement needs after failure of the original Ram 2500 or Ram 3500 cooler

Installation Notes and Tips

Verify the inlet and outlet connection style before installation; this cooler uses quick connect fittings with 0.125-inch inside and outside diameters listed in the product data. Confirm vehicle application by year, make, and model before ordering. For best results, inspect the steering hoses and surrounding mounting points for wear or damage during replacement. Fits 2012-2018 Ram 2500 and Fits 2012-2018 Ram 3500, N/A.

Quality Assurance

Dorman designs this cooler to match the fit and function of the original equipment part on specified vehicles. It is manufactured from quality materials for reliable performance and durability in normal service.