Husqvarna Lawn Tractor Blade Idler Pulley 173437

Basic Information

• Part Name: Blade Idler Pulley
• Manufacturer: AYP
• Category: Lawn Tractor
• Primary Function: Guides and tensions the mower deck belt for proper blade operation

Installation & Compatibility

• Compatible Models: Fits select Husqvarna, Craftsman, Poulan, Companion, Ariens, Murray, Ryobi, Southern States, and Weed Eater lawn tractors. Confirm compatibility with your model before ordering.
• Installation Difficulty: Medium; involves removing the mower deck belt and securing the pulley to the bracket
• Tools Required: Socket set, wrench, work gloves

Additional Information

This blade idler pulley (part number 532173437) maintains tension on the mower deck belt, allowing smooth engagement and consistent rotation of the cutting blades.

If the belt slips, squeals, or the blades fail to spin evenly, a worn or seized idler pulley may be the cause. Replacing it helps restore reliable cutting performance.

Let the engine cool and disconnect the spark plug wire before beginning the repair. Wear work gloves to protect your hands during installation.

532173437 replaces part numbers 5321658-88, 532165888, 173437, and 165888.