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Repair Parts Home  Lawn Equipment Parts  Troy-Bilt Parts  921-04030 Oil Seal (OD 1- 3/4
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Oil Seal (OD 1- 3/​4

Part Number: 921-04030
MTDTroy-BiltYard MachinesCub CadetHusky
Availability: 25+ in stock
Price: $11.07
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*This part replaces obsolete part #: 9617, GW-9617 and 721-04030.

Product Information
Manufacturer: MTD, Troy-Bilt, Yard Machines, Cub Cadet, Husky
Product Number: 921-04030
Classification: Part
Weight: 0.01 lbs.
Shipping: Ships Worldwide
Description:
This is a genuine OEM sourced part that is intended to be used with tillers from Troy-Bilt, Yard Machines, MTD, and Cub Cadet. The oil seal is used to prevent leaks between the drive shaft and the transmission case assembly. This item is available as an individual replacement part.
Frequently Purchased With
Compatibility

This part is compatible with the following machines:

Troy-Bilt
12213 4.5 HP Tiller
21A-521-081 Bronco RotoTillers
21A-634A766 Bronco RotoTillers
12180 Bronco RotoTillers
12210 Bronco RotoTillers
21A-520-081 Bronco RotoTillers
21A-634B063 (2003) Bronco RotoTillers
21A-643B011 (2007) Bronco RotoTillers
21A-643B066 (2007) Bronco RotoTillers
21A-643B711 (2006) Bronco RotoTillers
21A-643B766 (2006) Bronco RotoTillers
21A-643B766 (2007) Bronco RotoTillers
21A-643C211 (2007) Bronco RotoTillers
21A-643C266 (2007) Bronco RotoTillers
21A-643C711 (2006) Bronco RotoTillers
21A-643C766 (2006) Bronco RotoTillers
21A-644A711 (2005) Bronco RotoTillers
21A-644A766 (2005) Bronco RotoTillers
21A-64M1011 (2008) Bronco RotoTillers
21A-64M1066 (2008) Bronco RotoTillers
21B-643B011 (2007) Bronco RotoTillers
21B-643B066 (2007) Bronco RotoTillers
21B-643B766 (2006) Bronco RotoTillers
21B-643C211 (2007) Bronco RotoTillers
21B-643C266 (2007) Bronco RotoTillers
21C-644A211 (2008) Bronco RotoTillers
21C-644A266 (2008) Bronco RotoTillers
21C-644D211 (2009) Bronco RotoTillers
21C-644D266 (2009) Bronco RotoTillers
21C-64M1011 (2008) Bronco RotoTillers
21AE682L063 (2003) Big Red RotoTillers
21C-654A266 (2008) Bronco RotoTillers
21C-654D211 (2009) Bronco RotoTillers
21A-634F063 (2002) Bronco RotoTillers
21A-682J766 (2009) Horse Roto-Tiller
21AE682L766 (2009) Big Red Roto-Tiller
21C-64M1066 (2009) Bronco CRT Roto-Tiller
21C-655A766 (2009) ProLine CRT Roto-Tiller
21C-65M1011 (2009) Super Bronco CRT Roto-Tiller
21C-65M1066 (2009) Super Bronco CRT Roto-Tiller
21A-682P766 (2010) Horse Roto-Tiller
21AE682L766 (2010) Big Red Roto-Tiller
21C-644D211 (2010) Bronco CRT Roto-Tiller
21C-644D266 (2010) Bronco CRT Roto-Tiller
21C-64M1011 (2010) Bronco CRT Roto-Tiller
21C-64M1066 (2010) Bronco CRT Roto-Tiller
21C-654D211 (2010) Super Bronco CRT Roto-Tiller
21C-654D266 (2010) Super Bronco CRT Roto-Tiller
21C-655A766 (2010) ProLine CRT Roto-Tiller
21C-65M1011 (2010) Super Bronco CRT Roto-Tiller
21C-65M1066 (2010) Super Bronco CRT Roto-Tiller
21A-682P766 (2011) Horse Tiller
21AE682L766 (2011) Big Red Tiller
21D-644D211 (2011) Bronco Tiller
21D-644D266 (2011) Bronco Tiller
21D-655A766 (2011) ProLine Tiller
21D-65M1011 (2011) Super Bronco Tiller
21D-65M1066 (2011) Super Bronco Tiller
21A-682P766 (2012) Horse Tiller
21AE682L766 (2012) Big Red Tiller
21D-644D211 (2012) Bronco Tiller
21D-64M1011 (2012) Bronco Tiller
21D-64M1066 (2012) Bronco Tiller
21D-654D211 (2012) Super Bronco Tiller
21D-655A766 (2012) Pro Line Tiller
21D-65M1011 (2012) Super Bronco Tiller
21D-65M1066 (2012) Super Bronco Tiller
21A-640C711 Tiller
12209 Tiller
12071 PTO Horse Tiller
12060 (0012160-Up) 3HP Roto-Tiller
12060 (120600100101-Up) 3HP Roto-Tiller
12090 PTO Horse Tiller
12075 Horse Tiller
21A-644H766 Bronco Rear-Tine Tiller
21A-65M1011 Super Bronco CRT Garden Tiller
12070 Roto Tiller Power Composter
12058 PTO Horse Roto Tiller
12089 (120890100101) Rear-Tine Horse Tiller
8211 Pto Horse Tiller
0360 (D0000001) Horse-Silver Anniversary(8hp) Tiller
10056 (640000-855638) Horse Iii
12055 (120550100101-UP) Horse-Opc (7 And 8hp) Rototiller
12056 (120560100101-UP) Horse-Opc (7 And 8hp) Rototiller
12057 (120570100101-UP) Horse-Opc (7 And 8hp) Rototiller
12058 (120580100101-UP) Horse-Opc (7 And 8hp) Rototiller
12059 (120590100101-UP) Horse-Opc (7 And 8hp) Rototiller
12064 (120640100101-UP) Horse-Opc (7 And 8hp) Rototiller
12068 (120680100101-UP) Horse-Opc (7 And 8hp) Rototiller
12069 (120690100101-UP) Horse-Opc (7 And 8hp) Rototiller
12070 (120700100101-UP) Horse-Opc (7 And 8hp) Rototiller
Yard Machines
MTD
Cub Cadet
Husky
Expand the 150+ compatible machines
Products Compatibility

This item works with the following types of products:

  • • Cultivator
Questions & Answers

Are you sure this seal has an OD of 1&3/4 inches? It might be 1&1/4 inches? # 921-04030
mark asked on 2022-02-10
Hi Mark, Thank you for your question. The outer diameter would be 1-3/4 inches. If you would like to place an order for it, customer service is open 7 days a week and anyone will be happy to assist you. Please feel free to give us a call. We look forward to hearing from you!
Repair Instructions: Submitted by Customers Like You
Tool Type:
Cultivator
Parts Used:
Oil Seal (OD 1- 3/4 - 921-04030
Repair Difficulty:
Easy
Time Spent Repairing:
15-30 minutes
Tools Used:
Socket set, Wrench Set, Impact gun
Gear box seal was leaking,
Put on jack stands, removed wheels, removed belt covers, removed bolt and pulley cleaned gearbox with break cleaner, permatexed the seal and drove it in place, reinstalled everything else in reverse
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1 of 2 people found this instruction helpful
Tool Type:
Cultivator
Parts Used:
Oil Seal (OD 1- 3/4 - 921-04030
Bearing, Tapered Roller (With Race) - 941-0107
Washer-Flat 1.50x - 736-04308
Washer Flat 1.50X - 736-04305
Gasket-Transmission Cover - GW-1123
Gasket-Front Bearing Cap - GW-1124-2099
Shim-Dog Clutch, 1/16"(.62") Thick - 736-04187
Flat Washer, 1.5 X 1.75 X .03 - 736-04307
Repair Difficulty:
Hard
Time Spent Repairing:
More than 2 hours
Tools Used:
Screwdriver, Pliers, Socket set, Wrench Set, Adjustable Wrench
rear oil seal on rototiller failed, lost lubrication and roller bearings were dmaged.
removed tiller portion from engine section, removed tiller tines and rear differential, replaced diferential roller bearings and tiller oil seals, reassembled differential, replaced forward tiller shaft roller bearing and oil seal, reassembled full tiller assembly, reattached tiller to engine section, went to my garden and rototilled my brains out.
Did you find this story helpful?
Thanks for voting and helping fellow customers!
Tool Type:
Cultivator
Parts Used:
Oil Seal (OD 1- 3/4 - 921-04030
Gasket, Housing Cover - 921-04229
Oil Seal - 721-04232
Repair Difficulty:
Medium
Time Spent Repairing:
1-2 hours
Tools Used:
Screwdriver, Pliers, Power Drill, Socket set, Wrench Set, Seal puller
All oil seals were leaking
Removed wheels and tunes.
Cleaned shafts.
Drove screws into seal and used screws to pull out seal.
Used pieces of pic pipe to tap new seals into place.
Replaced wheels and tines.
Fill transmission with oil.
Replaced cover gaskets.
Did you find this story helpful?
Thanks for voting and helping fellow customers!
Reviews
4.2
Average Rating (out of 5):
5 Reviews
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  • Everything went as planned thanks for your promptness shipping parts out
    Working as intended
    Guest - May 27, 2021 Verified Purchase
    I have the parts. Just need to review how to get everything back together and go for it.
    everything arrived in great condition. It all looks good. Now I have to put the tiller unit back together.
    Guest - May 2, 2020 Verified Purchase
    Fit and arrived quick
    Good replacement. Fit right and came on time. They were very helpful when I ordered wrong.
    Rockie - April 7, 2020 Verified Purchase
    Quick service!
    Good service!!
    Kevin - August 8, 2019 Verified Purchase
    Wrong part
    Didn't fit
    Guest - May 20, 2019 Verified Purchase
    Verified Purchase
    eReplacementParts Team
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    Product Information
    Manufacturer: MTD, Troy-Bilt, Yard Machines, Cub Cadet, Husky
    Product Number: 921-04030
    Classification: Part
    Weight: 0.01 lbs.
    Shipping: Ships Worldwide

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