Dorman 918-598 Power Steering Cooler

OE Fix Power Steering Cooler for Equinox and Terrain

Dorman 918-598 is a direct replacement power steering cooler for select Chevrolet Equinox and GMC Terrain models. It addresses a common failure point in the original cooler by using a more durable stacked-fin aluminum design for improved service life.

Key Features

• OE FIX replacement for the factory power steering cooler
• Stacked-fin construction for added durability versus wire-style fins
• Aluminum cooler body with black finish
• Push-in fitting type for factory-style connection points
• Fits 2013-2017 Chevrolet Equinox and 2013-2017 GMC Terrain
• Part number 918-598 for easy identification and ordering

Product Details

This Dorman power steering cooler is built for vehicles where the original cooler can fail as the wire-style fins corrode, bend, or break. The stacked-fin aluminum design helps provide a stronger heat exchanger structure while maintaining the same general fitment profile for service replacement. It is a practical choice for Chevrolet Equinox and GMC Terrain owners looking for a replacement power steering cooler that matches the application and connection style of the original component. Part number 918-598 is also cross-referenced to GM OE numbers 19431997 and 22775329 for the same application.

Common Problems This Part Can Address

• Power steering fluid overheating from a damaged or restricted cooler
• Visible corrosion on the original cooler fins
• Bent, broken, or weakened wire-style cooler fins
• Loss of cooling efficiency in the power steering system
• Need for a replacement cooler on 2013-2017 Chevrolet Equinox or GMC Terrain

Installation Notes and Tips

Verify the vehicle’s original cooler style, inlet and outlet connection size, and mounting layout before installation. Compare the existing cooler to Dorman 918-598 to confirm fitment on 2013-2017 Chevrolet Equinox and 2013-2017 GMC Terrain models. Inspect hoses and surrounding steering components for wear or leaks during replacement so the new cooler can perform as intended.

Quality Assurance

Dorman develops OE-style replacement parts and OE FIX solutions that address known failure points in original equipment designs. This cooler uses a more robust stacked-fin construction to improve durability compared with the factory wire-style design.