1957 GMC PM250 Power Steering Pumps & Parts
![GMC PM250 Power Steering Pumps - 1957](https://ic.carid.com/pages/power-steering-pumps/power-steering-pumps_0.jpg)
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- National®Power Steering Pump Shaft SealGMC PM250 With Saginaw Pump 1957, Power Steering Pump Shaft Seal by National®. Don’t just repair a leak, prevent future problems with a National Oil Seal. This part is manufactured using exclusive National Dynamic Edge technology that...Designed to increase wheel-end reliability by effectively excluding dirt, moisture, and other contaminantsA patent-pending National Dynamic Edge technology allows for maximum protection$10.12