HomeDriveline and Axles > Gaskets and Sealing SystemsFAG SS6405 Differential Pinion Seal - Rear
Part #: SS6405

FAG SS6405 Differential Pinion Seal - Rear

Rear
⚙️ 18 vehicles fit this part
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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 FAG SS6405 differential pinion seal is engineered to provide durable sealing performance for Ford F-250 Super Duty and F-350 Super Duty models. Designed with precision, this seal helps maintain drivetrain integrity by preventing leaks and contamination.

  • Seal Type: Metal construction with spring and auxiliary lip for enhanced sealing
  • Sealing Material: Polyacrylate for resistance to heat and wear
  • Bore Diameter: 3.189 inches (81.001 mm)
  • Seal Outside Diameter: 3.322 inches (84.379 mm)
  • Seal Width: 12.065 mm (2.441 inches)

Technical Details and Construction

The FAG SS6405 differential pinion seal features a metal body equipped with a spring and an auxiliary lip, ensuring a secure fit and effective sealing around the pinion shaft. The polyacrylate sealing material offers durability against high temperatures and exposure to lubricants, making it suitable for heavy-duty applications in Ford F-250 Super Duty and F-350 Super Duty trucks. The precise bore and outside diameters ensure compatibility and proper installation, reducing the risk of leaks and drivetrain damage.

Compatible Vehicles and Applications

This differential pinion seal is specifically compatible with Ford F-250 Super Duty and F-350 Super Duty models. It is designed to replace worn or damaged seals in the driveline and axle assemblies, helping to maintain optimal performance and prevent fluid leaks.

  • Prevents differential fluid leaks
  • Protects pinion shaft from dirt and contaminants
  • Maintains proper lubrication within the differential
  • Reduces risk of drivetrain component wear
  • Ensures reliable operation under heavy load conditions

Installation Notes and Tips

When installing the FAG SS6405 differential pinion seal, ensure the mating surfaces are clean and free of debris. Use appropriate tools to avoid damaging the seal during installation. Verify the seal orientation matches the original part to maintain proper sealing function. It is recommended to inspect related components such as bearings and shafts for wear during replacement.

Quality Assurance and Warranty

FAG manufactures the SS6405 differential pinion seal to meet stringent quality standards for durability and performance. The use of high-grade polyacrylate sealing material and robust metal construction supports long service life. Warranty information should be confirmed with the supplier or manufacturer to ensure coverage details.

BrandFAG
Part NumberSS6405
40532.441
405362.001
Seal TypeMetal; spring; auxilary lip
Sealing MaterialPolyacrylate
Bore Diameter3.189
Bore Diameter81.001
Seal Outside Diameter3.322
Seal Outside Diameter84.379
Seal Width12.065
Seal Width2.441

This part fits 18 vehicles. Search below:

YearMakeModelPositionNotes
2019FordF-250 Super DutyRear10.50 " Ring Gear; Schaeffler Seal Global Number 413 6405 100
2019FordF-350 Super DutyRearDana 70 Axle; Schaeffler Seal Global Number 413 6405 100
2018FordF-250 Super DutyRear10.50 " Ring Gear; Schaeffler Seal Global Number 413 6405 100
2018FordF-350 Super DutyRearDana 70 Axle; Schaeffler Seal Global Number 413 6405 100
2017FordF-250 Super DutyRear10.50 " Ring Gear; Schaeffler Seal Global Number 413 6405 100
2017FordF-350 Super DutyRearDana 70 Axle; Schaeffler Seal Global Number 413 6405 100
2016FordF-250 Super DutyRear10.50 " Ring Gear; Schaeffler Seal Global Number 413 6405 100
2016FordF-350 Super DutyRearDana 70 Axle; Schaeffler Seal Global Number 413 6405 100
2015FordF-250 Super DutyRear10.50" Ring Gear; Schaeffler Seal Global Number 413 6405 100
2015FordF-350 Super DutyRearDana 70 Axle; Schaeffler Seal Global Number 413 6405 100
2014FordF-250 Super DutyRear10.50" Ring Gear; Schaeffler Seal Global Number 413 6405 100
2014FordF-350 Super DutyRearDana 70 Axle; Schaeffler Seal Global Number 413 6405 100
2013FordF-250 Super DutyRear10.50" Ring Gear; Schaeffler Seal Global Number 413 6405 100
2013FordF-350 Super DutyRearDana 70 Axle; Schaeffler Seal Global Number 413 6405 100
2012FordF-250 Super DutyRear10.50" Ring Gear; Schaeffler Seal Global Number 413 6405 100
2012FordF-350 Super DutyRearDana 70 Axle; Schaeffler Seal Global Number 413 6405 100
2011FordF-250 Super DutyRear10.50" Ring Gear; Schaeffler Seal Global Number 413 6405 100
2011FordF-350 Super DutyRearDana 70 Axle; Schaeffler Seal Global Number 413 6405 100

* 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:

20042A4136405100

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