This authentic part is supplied directly from the original equipment manufacturer for MTD and Cub Cadet tillers. It is one of the special seals for the bearings. Over time the material may wear out and begin to crack eventually requiring a replacement to ensure a tight fit. Make sure to refer to the appropriate diagrams for your specific model to ensure the exact location and the correct application of this component. Note, one durable rubber seal is included.
Use 921-0175 721-0175
OEM part for: MTD, Bolens, Troy-Bilt
Part Number: 721-0175
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Frequently Purchased Together ?
Compatibility
This part will fit the following 3125 machines
MTD
Bolens
Troy-Bilt
This item works with the following types of products:
- Lawn Mower Parts
- Snowblower Parts
- Lawn Tractor Parts
This part replaces obsolete part #: 921-0175, 1773207, 1185266
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Customer Repair Instructions ?
All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part.
Bearings on rototiller shaft worn out
Tool Type
Cultivator
Difficulty
Medium
Time
More than 2 hours
Tools Used
Screwdriver, Pliers, Socket set, Wrench Set, Adjustable Wrench
Bushings worn out on tines shaft.
Tool Type
Cultivator
Difficulty
Medium
Time
More than 2 hours
Tools Used
Screwdriver, Pliers, Socket set, Wrench Set, Nutdriver
2. Removed the housing that contained the chain drive and bushings.
3. Split the housing by removing all fasteners. Note: Remember where the fasteners were removed. There are holes in the case that have the handles attached at that point. If you get the fasteners in the wrong place you will have to remove them with the case mounted in the frame.
4. Removed old bushings and replaced. Had to clean the tine shaft with crocus cloth to get it back into the bushings.
5. Cleaned the case and greased all parts appropriately.
6. Replaced the gasket and reassembled the case.
7. Replaced the case in the frame.
8. Replaced all covers and guards. Total time to do was about 8 hours, but I took my time and cleaned and inspected as I went.
Bearings wore bad on a 1986 model tiller
Tool Type
Cultivator
Difficulty
Easy
Time
1-2 hours
Tools Used
Socket set
separate case after removing pulley
Replaced bearings
Replace seals and dust caps on tine shaft
Tiller drive chain bushings, seals, and bearings worn out. Shafts are obsolete for this 1987 MTD tiller so I had to weld up the worn areas on the shafts and machine back to new size.
Tool Type
Cultivator
Difficulty
Medium
Time
More than 2 hours
Tools Used
Screwdriver, Socket set, Wrench Set, Hammer
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Our customer service team are at the ready daily to answer your part and product questions. We have a dedicated staff with decades of collective experience in helping customers just like you purchase parts to repair their products.
All our part reviews are solicited directly from other customers who have purchased this exact part. While we moderate these reviews for profanity, offensive language or personally identifiable information, these reviews are posted exactly as submitted and no alterations are made by our team.
All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part. While we moderate these reviews for profanity, offensive language or personally identifiable information, these reviews are posted exactly as submitted and no alterations are made by our team.
Based on data from past customer purchasing behaviors, these parts are most commonly purchased together along with the part you are viewing. These parts may be necessary or helpful to replace to complete your current repair.
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