3998878C91 | Genuine International® Def Tank 7 Gal Without Sensor QLS 25.5L Clutch Slave Cylinder Ensures there is enough air

Ensures there is enough air pressure in the system for the clutch to operate correctly

it creates exhaust gases in each cylinder

Signs of a Bad A/C Compressor 554712C91:

Brakes feel delayed

3998878C91 | Genuine International® Def Tank 7 Gal Without Sensor QLS 25.5L Clutch Slave Cylinder Ensures there is enough airDescription: The DEF tank 3998878C91 stores Diesel Exhaust Fluid, which the truck uses to clean up exhaust emissions after combustion. Part Number: 3998878C91 Condition: New Manufacture Brand: International Fits 3998878C91 For Navistar International Engines: Cummins QLS Purpose of using 3998878C91: The purpose of using a DEF tank in a truck is to reduce harmful exhaust emissions so the truck can: Meet government emissions laws Run cleaner and more