HomeSteering > Power Steering Hoses, Pumps, and Related ComponentsDorman 918-591 Power Steering Cooler
Part #: 918-591

Dorman 918-591 Power Steering Cooler

8 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
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In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Ford and Lincoln, Edge and MKX
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Power Steering Cooler for Edge and MKX

Dorman 918-591 is a power steering cooler built to match the fit and function of the original cooler on specified vehicles. It uses aluminum and rubber construction for dependable fluid cooling and durable service in the steering system.

  • Direct-fit power steering cooler for specified Ford and Lincoln applications
  • Aluminum and rubber construction
  • Black finish
  • Push-in fitting type for OE-style connection points
  • Designed to match original fit and function
  • Compatible with 2007-2010 Ford Edge and 2007-2010 Lincoln MKX

Detailed Product Overview

This Dorman power steering cooler, part number 918-591, is engineered for vehicles that use an OE-style cooler in the steering circuit. It measures 37 inches in length, 17 inches in overall width, and 17 inches in height, with a 0.5-inch thickness. The cooler features aluminum construction with rubber components and push-in fittings sized to align with the original connection points on the application.

Use this cooler on 2007-2010 Ford Edge and 2007-2010 Lincoln MKX models when replacing a worn, leaking, or damaged steering cooler. Dorman 918-591 is also cross-referenced with Dorman - HELP 93556 for the same application.

Common Issues This Part Can Address

  • Power steering fluid overheating
  • Leaks from a damaged or corroded cooler
  • Reduced steering system cooling performance
  • Physical damage to the original cooler assembly
  • Service replacement for OE-style cooler failure

Installation Notes and Tips

Verify the inlet and outlet fitting sizes before installation: inlet fitting inside diameter 0.4 inch, inlet fitting outside diameter 0.6 inch, and outlet fitting inside diameter and outside diameter 0.6 inch. Confirm vehicle application by year, make, and model before ordering. For best results, inspect the steering hoses and surrounding lines for wear or contamination during replacement.

Quality Assurance

Dorman states that this cooler is made from quality materials and engineered for reliable performance and durability. It is designed to match the fit and function of the original cooler on specified vehicles, including Ford Edge and Lincoln MKX applications.

BrandDorman
Part Number918-591
MaterialAluminio
MaterialAluminum
MaterialGoma
MaterialRubber
Length37
ColorBlack
ColorNegro
ColorNoir
Thickness0.5
Height17
Inlet Fitting Inside Diameter0.4
Outlet Fitting Inside Diameter0.6
Inlet Fitting Outside Diameter0.6
Fitting TypeEmpujar hacia adentro
Fitting TypePush-in
Outlet Fitting Outside Diameter0.6
Ancho total17 in
Contenidos del paquete1 refrigerante de la dirección hidraulica
Overall Width17 in
Package Contents1 power steering cooler

This part fits 8 vehicles. Search below:

YearMakeModelPositionNotes
2010FordEdgeN/A
2010LincolnMKXN/A
2009FordEdgeN/A
2009LincolnMKXN/A
2008FordEdgeN/A
2008LincolnMKXN/A
2007FordEdgeN/A
2007LincolnMKXN/A

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

34048803670847T4Z3D746A7T4Z3D746B93556

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.