Isolator Assembly
The PAI Industries 642021 Isolator Assembly is a durable oil pan isolator with “stud in head” design, engineered for Detroit Diesel Series 60 engines. It replaces OEM reference 23530961, offering a perfect seal between the oil pan and engine block. Manufactured in ISO-certified U.S. facilities and backed by a 2-year unlimited-mileage warranty, this isolator helps reduce vibration and improve sealing. Available from Wofford Truck Parts, it’s an important part for service and rebuilds.
$17.78
Specifications
The PAI 642021 Isolator Assembly is made for use with Detroit Diesel Series 60 engines. Its primary function is to isolate the oil pan from the block via a stud-in-head mounting point, reducing vibration and ensuring a tight, gasket-friendly seal. This part is a direct OEM replacement for Detroit Diesel 23530961, matching factory fit and finish.
Built in the USA under ISO-certified manufacturing standards, the 642021 comes with a 2-year warranty. Light weight (~0.26 lbs) and modest packaging, this isolator is easy to ship and install. For fleet maintenance, overhaul jobs, or preventive service, it provides reliable performance in heavy-duty applications.
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 transit & line-haul models (1987–2011)
Bus/Coach/RV/Specialty – various rigs powered by Series 60 (1990s–2011)
Alternative Part Numbers
PAI642021
