InMotion WS99166 Engine Auxiliary Shaft Repair Sleeve

Engine Auxiliary Shaft Repair Sleeve

The InMotion WS99166 engine auxiliary shaft repair sleeve restores the sealing surface on a worn harmonic balancer or shaft area to help stop oil leaks and maintain stable engine operation. It is a practical repair option for a wide range of import and domestic vehicles, including Audi A6 Quattro, BMW xDrive models, Chevrolet Camaro, Toyota Camry, and more.

• Repair sleeve for engine auxiliary shaft sealing surfaces
• Helps correct wear that can lead to oil seepage at the balancer area
• Built from durable material to withstand engine vibration and heat cycles
• Direct repair alternative to replacing the full harmonic balancer assembly
• Fits a broad range of applications across 1994-2019 model years
• Part number WS99166 for catalog and fitment lookup

Detailed Fitment and Function

InMotion WS99166 is engineered to renew the surface where the seal rides, giving the seal a smoother contact area and helping the engine retain proper oil control. This repair sleeve is used on front, rear, left, right, upper, and front outer applications depending on vehicle configuration, with fitment spanning 1994-2019 across many makes and models. Common applications include Fits 2009-2019 Audi A6 Quattro, N/A; Fits 2017-2019 BMW 330i xDrive, Front; Fits 2010-2019 Chevrolet Camaro, Front; and Fits 2018-2019 Toyota Camry, Front. The WS99166 part number is also listed for numerous BMW xDrive, Lexus, Ford, Hyundai, Kia, and Toyota applications where the sealing surface has worn or grooved.

This part cross-references common repair sleeve applications used for harmonic balancer and auxiliary shaft sealing repairs.

What It Helps Fix

• Oil leaks caused by a grooved or worn sealing surface
• Seal failure after repeated contact with a damaged shaft area
• Loss of proper crankshaft or auxiliary shaft oil control
• Need for a lower-cost repair versus replacing the full balancer assembly
• Service issues on high-mileage engines with surface wear at the seal contact point

Installation Notes and Tips

Clean the shaft or balancer surface thoroughly before installation and inspect the seal for damage before reassembly. Measure the shaft diameter and installation depth against the listed dimensions: shaft diameter 1.653 in, shaft diameter minimum 1.647 in, shaft maximum diameter 1.654 in, installation depth 0.827 in, flange diameter 2.087 in, and width on shaft 0.445 in. Confirm vehicle position and transmission or transfer case notes before ordering, especially on BMW xDrive, Lexus, Ford 6F35, and Toyota transmission-specific applications. For best results, install on a smooth, undamaged surface and verify seal alignment during assembly.

Quality Assurance

InMotion WS99166 is manufactured to provide a durable repair surface that resists engine vibration and supports long-term sealing performance. The part is specified for broad vehicle coverage and dimensioned for accurate fitment across listed applications.