Fel-Pro BS40725 is a rear main seal kit for repairing crankshaft-side oil leaks on compatible Audi, Volkswagen, and Porsche applications from the 2008-2020 coverage range. Built as an OEM-style replacement, it uses application-specific sealing materials and a PTFE rubber seal with a retainer to help restore a dry, dependable seal during engine service, stock rebuilds, or street-driven repairs.

Fel-Pro BS40725 Features:

• Rear engine crankshaft seal kit is designed to replace a leaking rear main seal and help keep engine oil inside the crankcase.
• PTFE rubber sealing element is supplied with a retainer for an application-specific repair instead of a generic seal-only solution.
• OEM-style construction suits stock rebuilds and normal street-driven service; it is not intended for heavy race applications.
• Engineered for the real-world repair environment, with materials selected to seal reliably even when the mating surface is not perfect.
• Sold individually under UPC 019826512116 and commonly cataloged as a 1-piece rubber rear main seal kit.

Includes:

• Retainer with PTFE rubber rear main seal
• One-piece protective sleeve and installation tool

Best used when correcting rear main oil leakage during transmission removal, clutch or flexplate service, or engine resealing work. Follow vehicle service procedures and use the included protective sleeve and installation tool to help prevent damage to the PTFE sealing lip during installation.

Cataloged fitment covers many Audi and Volkswagen models plus the Porsche Macan within the 2008-2020 application range. Examples include Audi A3, A4, A5, A6, Q3, Q5, Q7, S3, TT, TTS, Volkswagen Atlas, Arteon, Beetle, CC, Eos, GTI, Jetta, Passat, Tiguan, Golf, Golf SportWagen, Golf Alltrack, and Porsche Macan. Confirm the exact year, engine, and submodel before ordering, especially on Quattro, allroad, Sportback, and limited-production variants.