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Specifications

The PAI INDUSTRIES 636020 Rear Seal Kit is a heavy‑duty crankshaft rear main seal engineered for Detroit Diesel Series 50 and Series 60 engines. It features a high‑quality Teflon lip seal with a 5.295″ free inner diameter, 6.503″ outer diameter, and 0.50″ width — sized for precise fit and effective oil retention under extreme operating conditions. A wear ring is included to ensure proper seating and performance. Designed to match key OEM references such as Detroit Diesel 23501544, 23513577, and 23516969, this seal kit delivers dependable sealing and durable service life for engine overhaul or maintenance projects. Its engineered build helps reduce oil leaks, protect internal engine components, and maintain optimal lubrication performance.
Weight
0.07

Compatibility

Freightliner FLD / Century Class / Columbia / Coronado – 1987–2011
Freightliner Cascadia – 2008–2011
Kenworth W900 / T600 / T800 – 1987–2010
Peterbilt 379 / 378 / 387 / 389 – 1987–2010
International 9000 / 9400 / 9200 / 9900 – 1987–2010
Volvo VN / VNL Series – 1987–2011
Western Star 4900 / Other Vocational Models – 1987–2011

Alternative Part Numbers

  • DDP636020
  • Detroit Diesel 23501544
  • Detroit Diesel 23513577
  • Detroit Diesel 23516969
  • PAI636020

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