HomeDriveline and Axles > Gaskets and Sealing SystemsSKF 20042A Differential Pinion Seal - Rear
Part #: 20042A

SKF 20042A Differential Pinion Seal - Rear

Rear
25 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Ford, F-250 Super Duty and F-350 Super Duty
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Reliable Differential Pinion Seal for Ford Super Duty Trucks

The SKF 20042A differential pinion seal is engineered to provide a precise fit and durable sealing solution for Ford F-250 Super Duty and F-350 Super Duty models. Designed with a polyacrylate sealing surface, this seal ensures effective protection against leaks and contamination in your vehicle's driveline system.

  • Width: 0.475 inches for optimal sealing depth
  • Outside Diameter: 3.197 inches to match differential housing dimensions
  • Shaft Diameter: 2.441 inches for accurate shaft fitment
  • Sealing Surface Type: Polyacrylate for enhanced chemical and temperature resistance
  • Compatible with Ford F-250 Super Duty and F-350 Super Duty models

Technical Details and Material Specifications

The SKF 20042A differential pinion seal features a polyacrylate sealing surface, which offers improved resistance to heat, oil, and wear compared to traditional rubber seals. The precise dimensions—0.475 inches in width, 3.197 inches outside diameter, and 2.441 inches shaft diameter—ensure a secure fit within the differential assembly, minimizing the risk of leaks and premature seal failure. This part is specifically designed for the driveline and axle sealing systems of Ford Super Duty trucks, maintaining the integrity of the differential pinion shaft.

Applications and Problem Solving

  • Prevents differential oil leaks that can lead to driveline damage
  • Protects against dirt and debris intrusion into the differential
  • Maintains proper lubrication by sealing the pinion shaft
  • Reduces wear on differential components caused by contamination
  • Helps avoid costly repairs related to seal failure in Ford F-250 and F-350 Super Duty trucks

Installation Notes and Tips

When installing the SKF 20042A differential pinion seal, ensure the differential housing and shaft are clean and free of debris. Use appropriate tools to press the seal evenly into place without distortion. Verify the seal’s orientation matches the sealing surface direction to maintain optimal performance. Proper installation will help extend the service life of the seal and the differential components.

Quality Assurance and Warranty

SKF manufactures the 20042A differential pinion seal to meet strict quality standards, ensuring reliable performance in demanding automotive applications. While specific warranty details are not provided, SKF products are known for consistent manufacturing quality and durability in driveline sealing systems.

BrandSKF
Part Number20042A
Width0.475
Outside Diameter3.197
Sealing Surface TypePolyacrylate
Shaft Diameter2.441

This part fits 25 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2021FordF-250 Super DutyRearDifferential pinion seal for 10.5" ring gear.
2021FordF-350 Super DutyRearDana 70 Axle
2020FordF-250 Super DutyRearDifferential pinion seal for 10.5" ring gear.
2020FordF-350 Super DutyRearDana 70 Axle
2019FordF-250 Super DutyRearDifferential pinion seal for 10.5" ring gear.
2019FordF-350 Super DutyRearDana 70 Axle
2018FordF-250 Super DutyRearDifferential pinion seal for 10.5" ring gear.
2018FordF-350 Super DutyRearDana 70 Axle
2017FordF-250 Super DutyRearDifferential pinion seal for 10.5" ring gear.
2017FordF-350 Super DutyRearDana 70 Axle
2016FordF-250 Super DutyRearDifferential pinion seal for 10.5" ring gear.
2016FordF-350 Super DutyRearDana 70 Axle
2015FordF-250 Super DutyRearDifferential pinion seal for 10.5" ring gear.
2015FordF-350 Super DutyRearDana 70 Axle
2014FordF-250 Super DutyRearDifferential pinion seal for 10.5" ring gear.
2014FordF-350 Super DutyRearDana 70 Axle
2013FordF-250 Super DutyRearDifferential pinion seal for 10.5" ring gear.
2013FordF-250 Super Duty6.7LV8RearDifferential pinion seal for 10.5" ring gear.
2013FordF-350 Super DutyRearDana 70 Axle
2012FordF-250 Super DutyRearDifferential pinion seal for 10.5" ring gear.
2012FordF-250 Super Duty6.7LV8RearDifferential pinion seal for 10.5" ring gear.
2012FordF-350 Super DutyRearDana 70 Axle
2011FordF-250 Super DutyRearDifferential pinion seal for 10.5" ring gear.
2011FordF-250 Super Duty6.7LV8RearDifferential pinion seal for 10.5" ring gear.
2011FordF-350 Super DutyRearDana 70 Axle

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

BC3W4676AD

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.