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Idler Pulley, Flat – Part Number: 539110311

Your Price

$13.69

Husqvarna Dethatcher Idler Pulley, Flat

★★★★★

1 Review

PartSelect Number PS9031679

Manufacturer Part Number 539110311

This is an OEM replacement part for various models of lawn mowers. The Idler Pulley is used to apply tension to the blade belt, allowing the belt to turn. It has an O.D. of approx. 2.75 inches, is made of durable black plastic, and is sold individually, not as part of a kit or assembly. This part will wear through regular use and should be replaced when you notice signs of fatigue or damage. When it is broken, the blades will stop rotating and your lawn mower will not be able to cut grass. You will need a socket set, a wrench set, and a screwdriver to complete this repair. Customers rate this repair as Easy.

Your Price

$38.98

Husqvarna Dethatcher Idler Pulley

PartSelect Number PS9288737

Manufacturer Part Number 539919078

Installation Instructions

robert from EUREKA, CA

transaxle rotated forward on 2015 Husqvarna YT42DXLS

2015 Husqvarna YT42DXLS. Both transaxle support struts broke causing the transaxle rotated forward and shear transaxle mounting bracket. The transaxle was not damaged. All 3 parts required replacement. There are some good youtube videos to watch to show how to complete the repair.

HINT: I removed the mower deck and placed jack stands under the frame to support the rear end of the mower. I then supported the transaxle with a floor jack. This worked great for positioning/aligning the transaxle up to the frame after the new mounting bracket was installed.

HINT: Due to the shearing of the transaxle mounting bracket, it was difficult to get a socket to seat correctly on the some of the nuts securing the transaxle to the mounting bracket. I highly recommend getting 4 new nuts because you will likely damage/strip the nut while removing it.

HINT: The youtube videos all show removing the rear tires. The rear tires can be difficult to remove; and there are some interesting youtube videos on removing stuck rear tires. If you have a stuck rear tire, you can complete the repair with the tires on; it is just a bit more challenging to squeeze your hands behind the tire to reach the bolts. I was able to only get one tire off.

HINT: If I wasn't able to do the repair with the rear tire on, my idea for getting the rear tire off was to fabricate a bracket that would work with a gear puller. The plan was to utilize the two symmetrical 1/4 inch-ish size holes in the rim to install 12" long bolts. I would then install a C-channel over the bolts, which would place the C-channel directly over the axle. I would then drill a hold in the C-channel for the gear puller bolt to go through. The shoulders of the gear puller bracket would then push against the c-channel. I was planning on using a few large fender washers on the back side of the rim to help prevent the rim from getting damaged when pulling the tire. You will be pulling the rim about 3 inches to get it off the axle.

HINT: It look four hours to repair plus another half hour of watching youtube videos; probably would have taken two hours if I didn't spend two hours trying to take off one of the rear tires that was stuck.

HINT: Since I was working under the mower, I also replaced the drive (motion) belt as preventative maintenance. Read more...