Mahle A228 Engine Harmonic Balancer Repair Sleeve

Mahle A228 Harmonic Balancer Repair Sleeve

Restore the sealing surface on the crankshaft hub with the Mahle A228 engine harmonic balancer repair sleeve. This OEM Standard sleeve uses nickel plated formed steel for a precise repair on worn balancer surfaces, helping maintain a proper seal where the harmonic balancer rides.

Compatible With long-tail applications such as 1983-2003 Chevrolet S10, 1991-2003 GMC Sonoma, and 1982-2002 Chevrolet Cavalier, this Mahle A228 repair sleeve is built for a wide range of GM cars, trucks, and SUVs. It cross-references FEL-PRO 16202 and Rol TC11236 for the same application.

Key Features

• Part number: A228
• OEM Standard item grade
• Nickel plated formed steel sleeve material
• Engine harmonic balancer repair sleeve for crankshaft sealing surface repair
• Fits a broad range of Chevrolet, GMC, Pontiac, Buick, Cadillac, Oldsmobile, and Isuzu applications

Detailed Description

Mahle A228 is an engine harmonic balancer repair sleeve made to restore a worn balancer hub surface without changing the original sealing geometry. The nickel plated formed steel construction provides a durable repair surface, while the OEM Standard grade supports accurate fitment on vehicles that rely on a clean, consistent crankshaft seal area. This part is commonly selected for GM platforms including Chevrolet S10, GMC Sonoma, and Chevrolet Cavalier applications, along with many other 1978-2003 fitments listed below.

Fits 1983-2003 Chevrolet S10, N/A. Fits 1991-2003 GMC Sonoma, N/A. Fits 1982-2002 Chevrolet Cavalier, N/A. Fits 1995-2002 Pontiac Sunfire, N/A. Fits 1996-2000 Isuzu Hombre, N/A.

What It Helps Fix

• Grooved or worn harmonic balancer sealing surfaces
• Crankshaft seal leakage at the balancer hub
• Surface wear that prevents a consistent seal contact area
• Repair needs on high-mileage GM engines with balancer wear
• Repeat seal failure caused by an uneven balancer surface

Installation Notes and Tips

Inspect the balancer hub before installation and confirm the sleeve matches the sealing surface dimensions for your application. Clean the shaft area thoroughly so the nickel plated formed steel sleeve seats evenly, and verify the balancer and seal contact area are free of burrs or heavy scoring. Use the vehicle-specific fitment list to confirm the correct year, make, and model before installation.

Quality Assurance

Mahle is known for sealing products used by OEMs and technicians worldwide, and this A228 sleeve follows that OE-focused approach with OEM Standard construction and application coverage.