MTD Lawn Mower Shoulder Bolt 638-04012A

Basic Information

• Part Name: Lawn Mower Shoulder Bolt
• Manufacturer: MTD
• Category: Lawn Mower
• Primary Function: Serves as a secure fastener, connecting moving parts while allowing pivoting or rotation.

Installation & Compatibility

• Compatible Models: Fits various MTD lawn mower models. Please confirm this part is correct for your model before ordering.
• Installation Difficulty: Easy — Requires minimal tools and basic mechanical skills
• Tools Required: Wrench set

Additional Information

The MTD Lawn Mower Shoulder Bolt replaces part number 938-3005A and secures moving components to maintain proper alignment and function. It provides a stable pivot point, helping reduce vibration and preventing structural damage from loosely fastened parts.

Common signs this part needs replacement include abnormal vibration, wobbling parts, or misaligned hardware. Installing a new shoulder bolt restores equipment stability and helps protect adjacent components from premature wear.

Installation is simple with a standard wrench. Before starting, disconnect the mower's power source and wear work gloves to protect your hands during the repair. Confirm compatibility with your specific mower model before ordering to ensure proper fit and performance.