MTD Lawn Tractor Mandrel and Pulley Assembly 918-04865A

Basic Information

• Part Name: Lawn Tractor Mandrel and Pulley Assembly
• Manufacturer: MTD
• Category: Lawn Tractor
• Primary Function: Supports the pulley shaft and spins the mower blade

Installation & Compatibility

• Compatible Models: Fits various MTD lawn tractor models. Please confirm this part is correct for your model before ordering.
• Installation Difficulty: Medium ? requires proper alignment and secure mounting
• Tools Required: Socket wrench, work gloves; purchase self-tapping bolts (part 710-1260A) separately

Additional Information

The MTD Lawn Tractor Mandrel and Pulley Assembly (part number 918-04865A) replaces 918-04636 and 918-04636A. This complete unit includes the mandrel housing, shaft, bearing, and pulley. It mounts to the mower deck and enables reliable blade rotation to deliver consistent cutting performance.

If your lawn tractor blades won't spin or you?re seeing uneven mowing patterns, a damaged or worn mandrel assembly could be the cause. Replacing it helps restore smooth blade operation and cutting consistency across the deck.

This housing is unthreaded, so be sure to order part 710-1260A self-tapping bolts separately for installation. Carefully align the mandrel with the mounting holes, insert the bolts, and tighten securely to avoid vibration or misalignment. Always disconnect the power and wear work gloves before starting the repair to protect your hands from sharp edges and rotating components.