Dorman Power Steering Pump O-Ring

A weeping power steering pump is one of those repairs that can feel bigger than it is. Often the pump itself is fine, and the real culprit is a small, aged rubber seal. Dorman's power steering pump O-ring kits target that problem directly, letting you replace only the deteriorated seals instead of buying a complete pump.

Why Dorman Power Steering Pump O-Rings Matter

Over years of heat cycling and exposure to power steering fluid, original rubber seals harden, dry-rot and lose their ability to seal. The result is a slow leak around the pump's fittings and inlet, low fluid levels, whining under steering load and eventually pump damage if the reservoir runs dry. Dorman's kits are described as direct replacements for worn, dry-rotted original components, intended to eliminate leaks and restore the sealing integrity of the pump.

This approach reflects a philosophy deeply rooted in Dorman's history. The company, founded in 1918, built its reputation as an aftermarket problem solver, and providing a way to repair just the broken parts of expensive assemblies is still very much part of Dorman's DNA . A pump O-ring kit is a clear example: a low-cost seal replacement in place of a costly assembly.

Notable Dorman O-Ring Kits

Dorman's power steering pump seal kits are sold under the OE Solutions line and are vehicle-specific. A few examples:

• 926-157: A two-piece NBR kit with sizes matched to the original Honda part numbers, covering a range of Acura and Honda models, including popular platforms such as the Accord, Civic, CR-V, Odyssey, MDX and TL.
• 926-130: Restores seal integrity for Chrysler, Dodge, Jeep, and Nissan models from 2011-2024. It is positioned as an alternative to the costly new-pump dealer repair on vehicles whose original pumps leak from seal fatigue.
• 926-718: A two-O-ring kit with metric dimensions matched to the original seals.

Because O-ring dimensions are critical, these kits are packaged to match the specific sizes used on each pump rather than as a generic assortment. NBR (nitrile) is a common elastomer for this job because of its resistance to petroleum-based and hydraulic fluids.

What Sets Dorman Apart in This Category

• Targeted repair kits: Replacing only the failed seals avoids the cost and labor of a full pump swap.
• Exact-fit sizing: Kits are matched to specific applications and cross-referenced to original equipment numbers, so you are not guessing at diameters and thicknesses.
• Broad catalog support: Dorman maintains a very large light-duty catalog, so seals and related sealing hardware are available for many makes and model years.

Installation Tips

Before opening the pump or its fittings, clean the surrounding area thoroughly to keep dirt out of the hydraulic system. Remove the old O-rings, inspect the sealing surfaces for scoring or debris, and lightly lubricate the new seals with clean power steering fluid before seating them. After reassembly, top off with the fluid specified for your vehicle and bleed the system by turning the wheel lock to lock with the engine running, checking for leaks as you go. Always confirm the kit matches your vehicle's year, make and engine before ordering.

Explore More

To see everything the manufacturer offers, visit the Dorman brand page. For a broader look at how these seals work and what to consider when choosing them, see the full Power Steering Pump O-Ring category.