Mahle A338 Engine Crankshaft Repair Sleeve - Rear

Engine Crankshaft Repair Sleeve for Rear Seal Service

Mahle A338 is an engine crankshaft repair sleeve built for rear seal repair on a wide range of GM applications. It uses nickel plated formed steel with a 0.013 in gasket wall thickness to help restore a proper sealing surface where crankshaft wear has affected the rear main seal area.

Compatible With Chevrolet Camaro, Pontiac Firebird, Buick Roadmaster, Cadillac Fleetwood, Chevrolet Caprice, and many other rear seal applications from 1986-1997. Mahle A338 is a direct-fit service part for technicians and DIY engine rebuilders working on rear crankshaft sealing repairs.

Key Features

• Mahle A338 engine crankshaft repair sleeve for rear seal repair
• Nickel plated formed steel sleeve material for durable sealing-surface restoration
• 0.013 in gasket wall thickness
• Rear position application
• Cross-reference: FEL-PRO 16258 for the same application

Detailed Description

This crankshaft repair sleeve is used to restore the sealing surface at the rear of the crankshaft when wear, grooves, or surface damage can interfere with rear main seal performance. Mahle supplies sealing-related components trusted by OEMs and technicians, and A338 follows that service-focused approach with a formed steel sleeve and nickel plating for the rear crankshaft area. It is a practical repair solution for Chevrolet Camaro and Pontiac Firebird rear seal service, as well as many Chevrolet, GMC, Cadillac, Buick, Oldsmobile, and Pontiac rear applications listed in the fitment data.

Part number A338 is also a useful reference when searching for rear crankshaft repair sleeve options for GM V8 and truck applications across the 1986-1997 model years.

What It Helps Address

• Rear main seal leakage caused by crankshaft wear
• Grooved or scored crankshaft sealing surfaces
• Oil seepage at the rear of the engine
• Repeat seal failure after prior repairs
• Restoration needs during engine rebuild or reseal service

Installation Notes and Tips

• Verify crankshaft diameter and rear seal surface condition before installation.
• Clean the sealing area thoroughly so the sleeve seats evenly.
• Confirm the rear application and thickness specification match the engine service requirements.
• Use careful alignment during installation to avoid damaging the new sealing surface.
• Always compare the vehicle application against the fitment list before ordering.

Quality Assurance

Mahle is known for sealing products used by OEMs and professional technicians, and A338 is built to support accurate rear crankshaft sealing service. This part cross-references FEL-PRO 16258 for the same application.