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Lawn mower blade spindle assembly. *4 Self tapping screws included. Mounting holes are not threaded see Part Replacement video for thread tapping information

Lawn mower blade spindle (mandrel) assembly. 5 Point Star. The bolt holes do not come tapped. Comes with self-tapping screws.

Spindle for lawn mower blade (Note: Installation holes come un-tapped from factory. See related items for factory self tapping screws)
The spindle is the shaft that holds and rotates your cutting blade—and it takes tremendous stress every time you mow. Worn or bent Dixon spindles cause blade wobble, uneven cuts, and strain on the deck belt and engine. Genuine OEM Dixon spindle assemblies from Repair Clinic are built to withstand years of heavy use and ensure your blade spins true and level. Replace spindles together to keep your deck balanced and avoid premature bearing wear.
Trust Dixon lawn mower spindle parts from Repair Clinic for professional-grade reliability. Find your model number and order today.
Raise the deck and slowly spin each blade by hand with the engine off. A bent spindle feels rough, catches, or causes the blade to wobble side-to-side. You may also hear a grinding noise or see a vibration under full-throttle mowing. If one spindle is bad, replace all three on a 42-48 inch deck to keep the deck balanced and level.
The blade bolt is either under-torqued or the spindle threads are stripped. Tighten the bolt to 35-40 foot-pounds (check your manual for exact specs). If the bolt spins freely without tightening, the spindle shaft is damaged and needs replacement. Never use a blade wrench to over-tighten—bent spindles are expensive.
Yes. Even if only one spindle is bad, replacing all three ensures your deck is balanced and level. Mismatched spindles with different bearing wear cause the deck to cut uneven and put extra strain on belts and the engine. OEM spindle sets are engineered to perform together.
Locate your Dixon model number on the frame or under the seat—it usually starts with ZTR or RZT. Enter it into Repair Clinic's parts finder to get the exact spindle assembly, bolts, and blade brake parts for your mower. Spindles vary by deck width and year, so matching your model is critical.


Maintain the efficiency of your Dixon Lawn Mower with genuine OEM spindle replacement parts available at Repair Clinic. Lawn mower spindles are crucial parts that support the blades, ensuring a smooth and even cut. To keep your mower performing at its best, use our model number lookup for exact part matching, and benefit from our same-day shipping. For troubleshooting and installation tips, check out our Lawn Mower Repair Help page or find more Dixon Lawn Mower Parts to keep your equipment running right.
On Dixon lawn mowers, look for the model number on a label attached to the frame near the blade deck, under the seat, or on the engine housing. Clean the area first if grass or dirt hides the label, and copy the letters and numbers exactly, including any hyphens. Type it into our model number lookup and the catalog narrows to parts made for your mower, not just spindle parts. The model number identifies the complete unit, so it filters every associated part category to the versions built for your specific Dixon mower. With the right model selected, you can compare compatible parts quickly and avoid ordering pieces meant for a different deck size or production year.

Solid diagnostic work is what makes a Dixon Lawn Mower Spindle repair go quickly, and Repair Clinic's online library was built for exactly that. Symptom articles, part testing videos, wiring diagrams, and step-by-step written guides give owners and technicians the reference material to isolate the failed part. Look up your model number to match the right OEM part, then follow the installation video.

Repair Clinic has five ways for you to stop your lawn mower from leaking gas. Before we get to those, let's review how the gasoline you pour into the tank powers the mower.

Why does your lawn mower battery keep dying? Repair Clinic has done the research and this article will provide some answers, starting with what a battery's purpose is on a gas-powered lawn mower.

What's causing that black smoke to billow out of the engine? There are three likely reasons and they are all related to how a gas-powered lawn mower engine operates.