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MTD Parts
Gasket

Gasket

Part Number: 721P0170
MTDCub Cadet
Availability: 7 in stock
Price: $10.02
Quantity:
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*This part replaces obsolete part #: and 721-0170.

Product Information
Manufacturer: MTD, Cub Cadet
Product Number: 721P0170
Classification: Part
Weight: 0.10 lbs.
Shipping: Ships Worldwide
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.
Compatibility

This part is compatible with the following machines:

MTD
21310S (1985) Tiller
21402S (1985) Tiller
21406S (1985) Tiller
215-310-000 (1985) Tiller
215-320-000 (1985) Tiller
215-402-000 (1985) Tiller
215-403-000 (1985) Tiller
215-404-000 (1985) Tiller
215-405-000 (1985) Tiller
215-406-000 (1985) Tiller
21700S (1985) Tiller
216-310-000 (1986) Tiller
216-320-000 (1986) Tiller
216-402-000 (1986) Tiller
216-403-000 (1986) Tiller
216-404-000 (1986) Tiller
216-405-000 (1986) Tiller
216-406-000 (1986) Tiller
21700C (1986) Tiller
217-310-000 (1987) Tiller
217-320-000 (1987) Tiller
217-402-000 (1987) Tiller
217-403-000 (1987) Tiller
217-404-000 (1987) Tiller
217-405-000 (1987) Tiller
217-406-000 (1987) Tiller
21700-7 (1987) Tiller
310-014 (1987) Tiller
310-032 (1987) Tiller
310-040 (1987) Tiller
310-059 (1987) Tiller
310-062 (1987) Tiller
310-064 (1987) Tiller
381-062 (1987) Tiller
402-046 (1987) Tiller
402-084 (1987) Tiller
405-023 (1987) Tiller
405-032 (1987) Tiller
405-081 (1987) Tiller
405-086 (1987) Tiller
405-111 (1987) Tiller
405-145 (1987) Tiller
405-192 (1987) Tiller
405-327 (1987) Tiller
406-192 (1987) Tiller
217-310-032/223-8733-00 (1987) Tiller
217-310-081 (1987) Tiller
217-310-084 (1987) Tiller
217-310-087 (1987) Tiller
217-310-111 (1987) Tiller
217-310-120 (1987) Tiller
217-310-305 (1987) Tiller
217-310-327 (1987) Tiller
217-310-331 (1987) Tiller
21700-8 (1988) Tiller
218-310-000 (1988) Tiller
218-402-000 (1988) Tiller
218-403-000 (1988) Tiller
218-404-000 (1988) Tiller
218-405-000 (1988) Tiller
218-406-000 (1988) Tiller
310-009 (1988) Tiller
310-014 (1988) Tiller
310-023 (1988) Tiller
310-032 (1988) Tiller
310-046 (1988) Tiller
310-059 (1988) Tiller
310-064 (1988) Tiller
310-087 (1988) Tiller
310-102 (1988) Tiller
310-127 (1988) Tiller
405-009 (1988) Tiller
405-023 (1988) Tiller
405-032 (1988) Tiller
405-064 (1988) Tiller
405-087 (1988) Tiller
218-310-034/223-8833-00 (1988) Tiller
218-310-054/481-4026 (1988) Tiller
218-310-062/95208 (1988) Tiller
218-310-192 (1988) Tiller
218-310-327 (1988) Tiller
218-405-118/SWC#28714 (1988) Tiller
218-405-192 (1988) Tiller
218-405-206 (1988) Tiller
218-406-192 (1988) Tiller
318-405-327 (1988) Tiller
21700-9 (1989) Tiller
219-310-000 (1989) Tiller
219-310-009 (1989) Tiller
219-310-014 (1989) Tiller
219-310-016 (1989) Tiller
219-320-000 (1989) Tiller
219-405-000 (1989) Tiller
219-405-009 (1989) Tiller
219-405-013 (1989) Tiller
219-405-084 (1989) Tiller
219-406-000 (1989) Tiller
219-406-016 (1989) Tiller
8852/850-2957 (1989) Tiller
310-192 (1989) Tiller
310-206 (1989) Tiller
310-327 (1989) Tiller
405-192 (1989) Tiller
405-206 (1989) Tiller
405-327 (1989) Tiller
406-192 (1989) Tiller
219-031-034/223-8933-00 (1989) Tiller
219-310-023 (1989) Tiller
219-310-031/B063-089 (1989) Tiller
219-310-032 (1989) Tiller
219-310-046 (1989) Tiller
219-310-055/481-4026 (1989) Tiller
219-310-059 (1989) Tiller
219-405-023 (1989) Tiller
219-406-034/223-8934-00 (1989) Tiller
219-406-105 (1989) Tiller
219-406-118/SWC28714 (1989) Tiller
210-310-000 (1990) Tiller
210-310-014 (1990) Tiller
210-320-000 (1990) Tiller
210-405-000 (1990) Tiller
210-405-013 (1990) Tiller
210-406-000 (1990) Tiller
210700 (1990) Tiller
310-009 (1990) (1990) Tiller
310-046 (1990) Tiller
405-009 (1990) Tiller
405-046 (1990) (1990) Tiller
210-310-032 (1990) Tiller
210-310-034/2239015-00 (1990) Tiller
210-310-054/481-4026 (1990) Tiller
210-310-059 (1990) Tiller
210-310-083 (1990) Tiller
210-310-087 (1990) Tiller
210-310-092 (1990) Tiller
210-310-105/23832 (1990) Tiller
210-310-137 (1990) Tiller
210-310-138 (1990) Tiller
210-310-146 (1990) Tiller
210-310-192 (1990) Tiller
210-310-206 (1990) Tiller
210-310-327 (1990) Tiller
210-405-031 (1990) Tiller
210-405-103 (1990) Tiller
210-405-105/15337 (1990) Tiller
210-405-141 (1990) Tiller
210-405-192 (1990) Tiller
210-405-206 (1990) Tiller
210-406-034/223-9016-00 (1990) Tiller
210-406-118/28714 (1990) Tiller
Expand the 150+ compatible machines
Questions & Answers

No questions have been asked yet
Repair Instructions: Submitted by Customers Like You
Tool Type:
Cultivator
Parts Used:
Spacer 1.0 I.D x 2.0 O.D. x .440 - 950-0570
Gasket - 721P0170
Seal - 921-0175
Bearing - 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.
Did you find this story helpful?
Thanks for voting and helping fellow customers!
Tool Type:
Cultivator
Parts Used:
Gasket - 721P0170
Seal - 921-0175
Bearing - 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" Flat - 34-005
Gasket - 721P0170
Dust Cap - 931-0487
Seal - 921-0175
Bearing - 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.
Did you find this story helpful?
Thanks for voting and helping fellow customers!
Product Information
Manufacturer: MTD, Cub Cadet
Product Number: 721P0170
Classification: Part
Weight: 0.10 lbs.
Shipping: Ships Worldwide
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