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Specifications

The PAI 642022 Valve Cover Isolator Assembly is made for Detroit Diesel Series 60 engines, built to serve as an exact replacement for OEM part 23522271. This isolator is engineered to support the valve cover, reduce vibration, and maintain a leak-free seal. It’s sold individually or in multi-packs depending on your needs. Produced in PAI’s U.S. ISO-certified facilities, the 642022 comes with a 2-year unlimited mileage warranty. Wofford Truck Parts provides these assemblies for heavy duty maintenance and rebuilds, ensuring dependable OEM-level fit and durability.
Weight
0.84

Compatibility

Freightliner – FLD, Century, Columbia, Coronado, Argosy (1987–2011)

Kenworth – T600, T800, W900 (1987–2011)

Peterbilt – 377, 378, 379, 386, 388 (1987–2011)

Western Star – 4700, 4900 (1990s–2011)

Sterling – Acterra, A-Line (late 1990s–2010)

International / Navistar – select line-haul/transit models (1987–2011)

Bus / Coach / RV / Specialty – various vehicles powered by Series 60 (1990s–2011)


Alternative Part Numbers

Detroit Diesel 23522271
PAI 642022

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