Timken SL260059 Engine Crankshaft Seal - Rear

Rear Crankshaft Seal for Porsche 911

Timken SL260059 is a rear engine crankshaft seal built for precise oil control and contamination exclusion. It is a direct-fit sealing component for select Porsche 911 applications, including 2004-2005, 2007-2008, and 2010-2011 models.

Key Features

• Precision sealing design helps retain lubricant at the crankshaft seal interface
• Reinforced outer case resists installation damage and supports durability
• Ribbed rubber inner diameter seals minor spindle imperfections and promotes seating
• Internal contamination exclusion system helps block debris that can lead to leakage
• Vent holes allow lubricant flow around the seal lip to reduce heat build-up

Detailed Description

Timken SL260059 is an engine crankshaft seal for the rear position on Porsche 911 models. It is engineered to maintain a tight seal where the crankshaft exits the engine, helping control oil and grease movement while limiting the entry of contaminants. The reinforced case and ribbed inner diameter support a secure fit on the shaft surface, while the vented design helps manage heat around the sealing lip. This part number, SL260059, is a practical choice for rear seal service on Porsche 911 vehicles when the original seal shows wear, hardening, or leakage.

What It Helps Address

• Rear engine oil seepage at the crankshaft seal area
• Contamination entering the seal interface
• Heat-related seal wear around the lip
• Leakage caused by minor shaft surface imperfections
• Loss of lubricant control during crankshaft rotation

Installation Notes and Tips

Verify the rear crankshaft seal location before installation and inspect the sealing surface for scoring, debris, or old seal residue. Clean the housing and shaft area thoroughly so the seal seats evenly. Use care during installation to avoid damaging the outer case or sealing lip. Confirm vehicle application by year and position before ordering: Fits 2004-2005 Porsche 911, rear; Fits 2007-2008 Porsche 911, rear; Fits 2010-2011 Porsche 911, rear.

Quality Assurance

Timken designs oil and grease seals with precision sealing features, reinforced construction, and contamination control to support reliable engine sealing performance. This part cross-references no listed alternate part numbers for the same application.