SAP100557 DIFFERENTIAL OIL SEAL (REAR)

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Technical Specifications

Part Type Differential Oil Seal (Rear Output / Tandem Rear Input)
Part Number SAP100557
Brand / Line SAP
Description Heavy-duty multi-lip Viton differential rear output / tandem rear input oil seal for Rockwell / Meritor RD / RP tandem axles
Shaft Diameter 3.003 inch
Bore Diameter 3.751 inch
Width 0.460 inch
Material Viton (multi-lip design)
Application Rear output on Rockwell / Meritor RD / RP tandem drive axles

Cross References

Brand Part Number
SAP SAP100557
National / Timken / Federal-Mogul 100557
Automann 181.100557
Application Differential Rear Output Oil Seal – Rockwell / Meritor RD / RP Tandem Axles

Vehicle Fitment

Make Model Model Years Notes
UNIVERSAL All Heavy-Duty Trucks (Freightliner, Kenworth, Peterbilt, International, Western Star, Mack, Volvo, Sterling) 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026 Rockwell / Meritor RD / RP tandem drive axles – rear output seal
Trailers & Vocational Equipment 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026 Tandem axle differentials – rear output seal
Universal differential component used across all major heavy-duty truck and vocational equipment manufacturers equipped with Rockwell / Meritor RD / RP tandem axles. Direct replacement for National / Timken 100557
Notes Heavy-duty multi-lip Viton differential rear output oil seal (SAP100557 / National 100557). Prevents oil leakage at the tandem axle rear output yoke on Rockwell / Meritor RD / RP series differentials in heavy-duty trucks and vocational vehicles.
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SAP100557 DIFFERENTIAL OIL SEAL (REAR)

$29.93