971185 Lockwasher,pinion/sprocket shaft

This lockwasher from MCS is designed for the pinion or sprocket shaft on 1932 to 1973 45 cubic inch Sidevalve models. It serves as a direct replacement for OEM 24016-29 and is also identified by part number 971185. Typically, two of these lockwashers are used in the assembly to ensure that critical engine nuts remain secure under the constant vibration and torque of a running motor. Using fresh lockwashers during a bottom-end rebuild is standard practice for any mechanic looking to avoid the catastrophic failure of internal components. This part provides the peace of mind needed for vintage engine maintenance.