Murray 1720387sm Pulley 4.00 in Od Lawn Garden

Product Description

The MURRAY 1720387sm is a replacement pulley designed for Murray lawn and garden equipment. Pulleys of this type transfer rotational power from the engine or drive shaft to belts that operate cutting decks, transmissions, and other driven accessories. This pulley features a 4.00-inch outer diameter and a 1.000-inch bore, making it a direct-fit component for compatible Murray equipment. Installation is typically performed by a small-engine technician or a knowledgeable equipment owner with standard hand tools and a puller set where required.

This pulley is suited for residential lawn and garden applications where belt-driven systems require periodic component replacement due to wear, wobble, or belt slippage. It is commonly used in mower deck and drive train assemblies on Murray-branded walk-behind and riding mowers. When the original pulley shows signs of cracking, out-of-round wear, or bearing damage, this part restores proper belt tracking and drive performance.

Key Features

• 4.00-inch outer diameter for correct belt seating and drive ratio
• 1.000-inch bore sized to fit compatible Murray shaft diameters
• OEM-style replacement maintains original drive geometry
• Designed for belt-driven deck and drive train assemblies on lawn and garden equipment

Compatibility

Designed as an OEM-style replacement pulley for Murray lawn and garden equipment with compatible shaft and belt configurations.

Installation Notes

Disconnect the spark plug wire and remove all belt tension before servicing the pulley. A pulley puller may be required to remove the original component without damaging the shaft. Torque the retaining fastener to the specification found in the equipment service manual. Inspect the drive belt for wear or glazing and replace it if necessary before returning the equipment to service.

Technical Specifications

• Outer Diameter: 4.00 inches
• Bore Diameter: 1.000 inches

Standard Information

• Brand: MURRAY
• Manufacturer Part Number: 1720387sm