Help keep contaminants out of your truck's steering hydraulics with the Wix power steering filter, part number 51637. This WIX power steering cartridge filter is a replacement for 130 listed heavy-duty applications, including the 1985-1998 Freightliner FLC112, 1986-2003 Peterbilt 379, 1987-2011 Kenworth T800, 1993-1999 Mack CL, and 2000-2019 Volvo VNL. See the "Vehicles it fits" section for the full list.
A power steering filter traps debris in the power steering fluid as it circulates. This helps protect the pump, steering gear, and other hydraulic components from contamination. WIX HD power steering filters use media specific to each application.
- Application-specific media: Premium filter media is selected for the specific application it serves.
- High-strength construction: Built with high-strength, corrosion-resistant materials, center tubes, and end caps.
- Leak-resistant sealing: The sealing components are designed to help the filter resist leaks in service.
- Service intervals: WIX recommends these filters for OEM power steering filter change intervals.
Contaminated fluid, a whining pump, or heavier steering effort may be signs that the power steering system needs service. These symptoms can have several causes, so diagnose the system before replacing parts. If a clogged or overdue filter is part of the problem, the Wix 51637 replaces it. Change it on the schedule for your truck or coach.
Frequently Asked Questions
What does a power steering filter do?
It traps contaminants in the power steering fluid as it circulates. This helps protect the pump, steering gear, and other hydraulic components from debris.
How often should the Wix 51637 be replaced?
WIX recommends its power steering filters for OEM power steering filter change intervals. Follow the service schedule for your specific truck or coach.
Which vehicles does the Wix 51637 fit?
It is listed for 130 heavy-duty applications, including the 1987-2011 Kenworth T800, 1986-2003 Peterbilt 379, and 2000-2019 Volvo VNL. See the "Vehicles it fits" section for the full list.
What signs may mean the power steering filter needs replacing?
A whining pump, heavier steering effort, or dark, contaminated fluid can be worth checking. Diagnose the cause first, since the pump, gear, or fluid level can also cause these symptoms.
What type of filter is the Wix 51637?
It is a WIX power steering cartridge filter. Its media is specific to the application, and its center tubes and end caps use high-strength, corrosion-resistant materials.
