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Specifications

The PAI Industries Rear (Crankshaft) Seal, part number 636024, is crafted to provide a tight, leak-resistant seal for Detroit Diesel Series 50 and Series 60 engines, directly replacing OEM reference 23519651. Its exact dimensions—5.187" free inner diameter, 6.506" outer diameter, and 0.625" width (131.74 mm × 165.25 mm × 15.87 mm)—ensure a reliable fit and superior sealing performance under demanding engine conditions.



Built in ISO 9001-certified U.S. facilities, PAI’s Rear Seal adheres to superior quality standards and comes with industry-backed manufacturing excellence. Sold by Wofford Truck Parts, it’s ideal for engine rebuilds, routine maintenance, and heavy-duty applications where OEM-level reliability is non-negotiable.


Weight
0.54

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–2009/2010)

International/Navistar – select transit and line-haul models using Series 50/60

Bus/Coach/RV/Specialty – various applications powered by Series 50/60


Alternative Part Numbers

Detroit Diesel 23519651
Detroit Diesel 23533936
DDC23519651
DDP636024
Mahle 68007
PAI636024

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