Timken SL260025 Engine Crankshaft Seal - Front

Brand Timken SL260025
Position Front
Fits Ford · 6 vehicles

Precision sealing design. Helps prevent lubricant escape and keep contaminants out.

Reinforced outer case. Helps resist installation damage and adds durability.

Contamination exclusion system. Helps block debris that can lead to leakage.

Cross-references Four Seasons 26788 and National 710878 for the same application. See all 2.

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Timken SL260025 Front Engine Crankshaft Seal

Timken SL260025 is a front engine crankshaft seal built to retain oil and grease at the crankshaft while helping block dirt and other contaminants from entering the sealing area. It is a direct-fit service part for select Ford Super Duty diesel applications, including 2008-2010 Ford F-250 Super Duty and 2008-2010 Ford F-350 Super Duty front applications.

Key Features

  • Precision sealing design for crankshaft oil control
  • Reinforced outer case to help resist installation damage
  • Ribbed rubber inner diameter for minor spindle imperfections and stable seating
  • Internal contamination exclusion system to reduce debris intrusion
  • Vent holes that promote lubricant flow around the seal lip and help manage heat

Detailed Description

Built for front crankshaft sealing service, Timken SL260025 helps maintain proper lubrication at the engine’s front seal area while limiting contamination that can contribute to leakage. The reinforced outer case supports a more durable installation, and the ribbed inner diameter is engineered to seat securely against minor surface irregularities. This part cross-references Four Seasons 26788 and National 710878 for the same application. For buyers searching for a Ford F-250 Super Duty front crankshaft seal or a Ford F-350 Super Duty front engine seal, Timken SL260025 provides a focused OE-style service solution.

Common Problems This Seal Can Address

  • Front crankshaft oil leakage
  • Grease seepage at the seal interface
  • Contamination entering the sealing area
  • Heat-related seal wear from poor lubricant circulation
  • Leakage caused by minor spindle surface imperfections

Installation Notes and Tips

Inspect the crankshaft sealing surface before installation and clean the area thoroughly to remove old oil, debris, and residue. Confirm the seal is oriented correctly for front engine placement on the 2008-2010 Ford F-250 Super Duty or 2008-2010 Ford F-350 Super Duty. Use proper installation tools to avoid distorting the seal case or lip during seating.

Quality Assurance

Timken manufactures sealing components with precision-focused designs and contamination control features to support reliable service in engine sealing applications.

This part fits 6 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersFuel TypePositionNotes
2010FordF-250 Super Duty6.4LV8Front
2010FordF-350 Super Duty6.4LV8DIESELFront
2009FordF-250 Super Duty6.4LV8Front
2009FordF-350 Super Duty6.4LV8DIESELFront
2008FordF-250 Super Duty6.4LV8Front
2008FordF-350 Super Duty6.4LV8DIESELFront
Directly replaces or cross-references 2 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Four Seasons — 26788National — 710878