Gasket 721P0170

Description:

The gasket attaches to the tiller housing. It is a genuine item that is supplied by the original equipment manufacturer for use with MTD and Cub Cadet tillers. This part is made out of a thin material and is sold individually. During replacement, it may require a screwdriver, a set of pliers, a socket set, and a wrench set to help install this part correctly. It will require replacing if it becomes broken.

Frequently Purchased With

Bearing-king P..
$8.26

Cap-dust
$12.43

Use 921-0175
$12.17

Compatibility

This part is compatible with the following machines:

MTD

Expand the 150+ compatible machines

Repair Instructions: Submitted by Customers Like You

Tool Type:

Cultivator

Parts Used:

Spacer 1.0 I.d X 2.0 O.d. X .4 - 950-0570

Gasket - 721P0170

Use 921-0175 - 721-0175

Bearing-king Pin - 931-0374

Repair Difficulty:

Medium

Time Spent Repairing:

More than 2 hours

Tools Used:

Screwdriver, Pliers, Socket set, Wrench Set, Adjustable Wrench

Bearings on rototiller shaft worn out

Took apart the gear box that drives the rototiller tines to replace the bearings, which in turn had to replace the other 3 parts. There are quite a few screws and other sections of the rototiller to take apart which was pretty much an all day job. Runs just like new.

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Tool Type:

Cultivator

Parts Used:

Gasket - 721P0170

Use 921-0175 - 721-0175

Bearing-king Pin - 931-0374

Repair Difficulty:

Medium

Time Spent Repairing:

More than 2 hours

Tools Used:

Screwdriver, Pliers, Socket set, Wrench Set, Nutdriver

Bushings worn out on tines shaft.

1. Removed the covers around the tines.
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.

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Tool Type:

Cultivator

Parts Used:

Idler Pulley 2 1/4 X 3/8 Fla - 34-005

Gasket - 721P0170

Cap-dust - 931-0487

Use 921-0175 - 721-0175

Bearing-king Pin - 931-0374

Repair Difficulty:

Medium

Time Spent Repairing:

More than 2 hours

Tools Used:

Screwdriver, Socket set, Wrench Set, Hammer

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.

Disassembled tiller to remove drive gear. Disassembled the gear drive chain, removed upper and lower drive gears and shafts, welded up and machined down bearing and seal areas. Removed old bushings, bearings, and seals. Installed all new parts and reassembled.

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