Primary Function: Rotates the blade under the mower deck
Installation & Compatibility
Compatible Models: Fits various Husqvarna lawn tractor models. Please confirm this part is correct for your model before ordering.
Installation Difficulty: Medium — requires basic mechanical skills and tools.
Tools Required: Wrench, screwdriver, work gloves
Additional Information
The Husqvarna Lawn Tractor Mandrel Shaft Assembly, part number 532137553, includes both the shaft and the bearing, ensuring smooth operation as it rotates the mower blade beneath the deck. The assembly replaces part number 137553.
The mandrel shaft assembly resolves common issues such as uneven cutting, blade wobbling, and unusual noises from the deck. When you notice these symptoms, it may be time to replace the shaft assembly to restore optimal cutting performance. Its installation is straightforward but requires some familiarity with mechanical components; using the right tools, such as a wrench and screwdriver, eases the process.
For safety, always remember to wear gloves to protect your hands from sharp blades and components during installation. The assembly's robust construction promises longevity, giving you peace of mind as you maintain your garden or lawn with precision.
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Manufacturer substitution
This part replaces 131491. Substitute parts can look different from the original.
Recommend part Good Quality Easy to install. QUICK
June 28, 2022|Michael, St. Louis
Recommend. Good Quality Easy to install. Quick delivery.
Ease of InstallationEasy
Duration of Installation1 - 2 hours
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Just what I needed.
September 24, 2021|Jerry, North Idaho
This part was just what I needed. It was easy to install.
Ease of InstallationVery Easy
Duration of InstallationLess than 30 minutes
verified customer
Yes, I would recommend this to a friend
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Great fit and easy to install
May 18, 2021|George, mn
The hard part is getting the old shafts out. Shafts fit well and are easy to install. Took about 30 minutes to install.
Ease of InstallationVery Easy
Duration of Installation30 minutes - 1 hour
verified customer
Yes, I would recommend this to a friend
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Time Consuming but the only option
May 08, 2021|Chas, Central Maryland
It took a lot of removal of other parts before this part could be accessed, but replacement of the actual part was pretty easy.
Ease of InstallationModerate
Duration of Installation1 - 2 hours
verified customer
Yes, I would recommend this to a friend
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The parts I order we're easy to identify and order
October 26, 2020|Sandy, Minden, NV.
The shaft was easy to install without instructions provided.
Ease of InstallationEasy
Duration of Installation30 minutes - 1 hour
verified customer
Yes, I would recommend this to a friend
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Tractor blade mandrel
April 18, 2020|Tractor J, PA
Very quality part looks like it will be easy to install
Ease of InstallationModerate
Duration of Installation30 minutes - 1 hour
verified customer
Yes, I would recommend this to a friend
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Easy to install
August 10, 2019|bb-web, Sebastopol, Ca
I installed the new shaft with a new mandrill and pulley, it took about 30 minutes.
Ease of InstallationEasy
Duration of Installation30 minutes - 1 hour
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Relatively easy to install
May 26, 2019|Whatzit2ya, SE MO
I recently replaced 2 of the mandrel (blade spindle) shafts and bearings (and an idler pulley that was not turning smoothly). Remove mower deck from tractor. Remove the outboard plastic pulley covers as needed. With a lever or large channel-lock move the belt tensioner pulley and remove deck/blade drive belt. Undo the 7/8" nut from top of spindle shaft and remove pulley (a pulley puller may be necessary to make it easier). I stuck chunk of 2x4 under the deck to prevent the blade and shaft from turning while undoing the 7/8" nut. Remove the blade retaining bolt from bottom of spindle and remove blade. Remove 3 bolts that hold mandrel to deck and remove mandrel (be careful not to lose the 3 nuts that fit into the bottom of mandrel, if yours has nuts rather than a threaded mandrel housing). Spray the surface around the top and bottom of the mandrel housing where the bearing seats into the mandrel with a good penetrating oil. Replace the 7/8" nut on top of mandrel shaft to avoid damaging the threads. Set the mandrel on three bIocks as close to the shaft as possible. Tap on 7/8" nut with hammer to remove shaft and lower bearing from housing - shouldn't take too muck effort. Flip the housing over and place on 3 taller blocks and knock upper bearing out - I used a 1-1/4" diameter wooden dowel. Install new spindle and lower bearing into housing - I put some light lube around the outside of outer bearing race and tapped in it - went pretty easy. Flip the housing over and install top bearing. I used a 1/2" drive socket the same diameter as the outer race and tapped it in. The rest is just the nuts and bolts in reverse. Overall took me about 1-1/2 hours. Have fun.
Only ground shipment is available for this item.
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