Fel-Pro BS40721 is a rear main seal for 1.6L L4 Mini Cooper applications, built to help stop engine oil leaks at the crankshaft sealing surface during a stock rebuild or street-service repair. This OEM-style rubber seal uses a 1-piece, application-specific design for Mini Cooper, Cooper Countryman, and Cooper Paceman models, giving technicians and DIY owners a direct replacement made for the repair environment rather than a universal workaround.

Fel-Pro BS40721 Features:

• 1-piece rubber construction provides the sealing material and layout specified for this rear crankshaft location.
• Application-specific design supports proper fit, form, and function on 1.6L L4 Mini Cooper, Cooper Countryman, and Cooper Paceman engines within the validated coverage.
• OEM-style replacement is intended for stock rebuilds and street-driven service repairs, not race applications.
• Engineered for the repair environment to help seal surfaces that may no longer be factory-perfect after years of use.

Includes:

• One rear main seal

Use this seal when servicing the rear crankshaft sealing area on compatible Mini 1.6L L4 engines, especially when the transmission or related components are already removed for access.