21745603 2008-2017 Genuine Volvo/Mack D13/MP8 Fuel/Power Steering Pump

Volvo D13 MP8 Power Steering Pump — What It Does The power steering pump on the Volvo D13 and MP8 is the muscle behind every easy turn — building the hydraulic pressure the steering gear multiplies into effort a human can supply, all day, off the engine’s drive. Common Symptoms of a Failing PS Pump Whine that rises with RPM and worsens at full lock Heavy steering — worst at low speed, where assist matters most Groan and aeration — foamy fluid telling a suction-side story Leaks at the shaft seal and fittings Assist that fades hot as internal clearances…