Timken SL260042 Engine Crankshaft Seal - Rear

Engine Crankshaft Seal Overview

Timken SL260042 is an engine crankshaft seal built to control oil retention and block contaminants at the sealing surface. It is a direct fit for rear applications on select Ford Super Duty trucks, including Ford F-250 Super Duty, Ford F-350 Super Duty, Ford F-450 Super Duty, and Ford F-550 Super Duty.

Key Features

• Precision sealing design helps prevent lubricant escape and contamination entry.
• Reinforced outer case helps resist installation damage and adds durability.
• Ribbed rubber inner diameter helps seal minor spindle imperfections and promote secure seating.
• Internal contamination exclusion system helps keep debris out of the seal area.
• Vent holes help circulate lubricant around the seal lip to reduce heat build-up.

Detailed Description

Timken SL260042 is engineered for rear crankshaft sealing in Ford Super Duty applications where reliable oil control matters. The seal combines a reinforced outer case with a ribbed rubber inner diameter to improve fit at the sealing surface, while the internal exclusion system helps reduce debris intrusion that can contribute to leakage. Vent holes are incorporated to move lubricant around the lip and manage heat at the seal interface. This part number, SL260042, is a practical replacement choice for Ford F-250 Super Duty, Ford F-350 Super Duty, Ford F-450 Super Duty, and Ford F-550 Super Duty rear service work.

What It Helps Address

• Oil leakage at the crankshaft sealing area
• Contamination entering the seal interface
• Heat build-up around the seal lip
• Fitment issues caused by minor spindle imperfections
• Damage during seal installation

Installation Notes and Tips

Confirm rear application fitment before installation and inspect the sealing surface for wear, scoring, or debris. Clean the mating area thoroughly so the seal seats evenly. Follow the service procedure for the specific Ford Super Duty model and verify the seal orientation before final assembly. Part number SL260042 should be matched to the vehicle application listed above.

Quality Assurance

Timken sealing products are built with precision sealing features and contamination control details intended to support dependable service life in demanding drivetrain applications.