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Troy-Bilt Parts

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Seal-oil - 921-04031:MTD 360 View
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Seal-oil 921-04031

Part Number: 921-04031
MTDTroy-Bilt
Availability: In Stock
Price: $10.27
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*This part replaces obsolete part #: GW-9609, 9621, 721-04031 and GW-9621.

Product Information
Description:
This is an oil seal for various models of tillers and cultivators, designed to be installed directly onto the wheel shaft or axle of the transmission. The primary purpose of this oil seal is to prevent oil from leaking out of the tiller transmission and gear assembly while also preventing contaminants from entering the transmission, which can lead to disruptions, part wear, and reduced efficiency. If you observe visible oil leaks, excess grease, lubricant accumulation, or experience difficulty in rotating the wheels, it is likely that the oil seal has become damaged and requires replacement. This oil seal is sold individually, but it is advisable to replace both seals simultaneously, so consider ordering multiples if needed. The process of replacing this seal involves several tools and materials, including a jack, socket set, wrenches, drill, pry bar, screws, new transmission fluid or lubricant for the seal, sandpaper, and a rubber mallet or hammer. It is essential to consult the instruction manual for your specific tiller model to ensure the proper disassembly of the axle. To begin the replacement, gain access to the oil seal on the axle, which may require removing the wheels and wheel hub. Utilize a pry bar to carefully remove the old oil seal, taking care not to damage the transmission or axle. Clean the area around the seal and shaft with sandpaper to remove any grit, dirt, or debris that could lead to contamination. Lubricate the new oil seal and install it using an object with the same circumference, such as PVC pipe, to ensure it is flush and aligned within the housing. Finally, reinstall the axle assembly and any other components that were previously disconnected, including wheels and wheel hubs.
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
21A-634B063 (2003) Bronco RotoTillers
12180 Bronco RotoTillers
12210 Bronco RotoTillers
21A-520-081 Bronco RotoTillers
21A-634F063 (2002) 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
21AE682L063 (2003) Big Red RotoTillers
14AV809H063 (1999) Garden Tractor
14AW809H063 (1999) Garden Tractor
14AY809P063 (2000) Garden Tractor
14BV809H063 (2000) Garden Tractor
14AY809P063 (2001) Garden Tractor
14BV809H063 (2001) Garden Tractor
GTX2446 (14AZ809H063) (2003) Garden Tractor
GTX2654 (14AZ809K063) (2003) Garden Tractor
14AT809H766 (Horse) (2004) Garden Tractor
14AZ809K766 (Big Red) (2004) Garden Tractor
14AA80TP711 (Big Red Horse) (2007) Garden Tractor
14AA80TP766 (Big Red Horse) (2007) Garden Tractor
21A-662D066 (2009) 250cc Roto-Tiller
21A-662E266 (2009) 250cc Roto-Tiller
21A-665B766 (2009) FRT Roto-Tiller
21A-682J766 (2009) Horse Roto-Tiller
21AE662M066 (2009) 250cc Elec Roto-Tiller
21A-662F066 (2010) Roto-Tiller
21A-662G266 (2010) Roto-Tiller
21A-665B766 (2010) ProLine FRT Roto-Tiller
21A-682P766 (2010) Horse Roto-Tiller
21AE662H066 (2010) Elec Roto-Tiller
21AE682L766 (2010) Big Red Roto-Tiller
21A-662G766 (2011) Pony Tiller
21A-665B766 (2011) ProLine Tiller
21A-682P766 (2011) Horse Tiller
21AE662K766 (2011) Pony ES Tiller
21AE682L766 (2011) Big Red Tiller
21A-662G766 (2012) Pony Tiller
21A-665B766 (2012) Pro Line FRT Tiller
21A-682P766 (2012) Horse Tiller
21AE662K766 (2012) Pony ES Tiller
21AE682L766 (2012) Big Red Tiller
21A-640C711 Tiller
12209 Tiller
12071 PTO Horse Tiller
12060 (0012160-Up) 3HP Roto-Tiller
12060 (120600100101-Up) 3HP Roto-Tiller
21A-675B766 Rear-tine Tiller 675B Pony
12212 Rear-Tine Tiller
21A-630C063 Rear-Tine Tiller
12090 PTO Horse Tiller
12075 Horse Tiller
21A-644H766 Bronco Rear-Tine Tiller
21A-65M1011 Super Bronco CRT Garden Tiller
12058 PTO Horse Roto Tiller
12089 (120890100101) Rear-Tine Horse Tiller
21A675B766 5.5 Hp Rear Tine Tiller
15009 (150090100101-0400101) Troy-Bilt Pony Rear-Tine Tiller
8211 Pto Horse Tiller
15008 (1993) Pony Tiller
15009 (1993) Pony Tiller
15008 (150080300101-150080399999) Pony Tiller
15009 (150090300101-150090399999) Pony Tiller
15008 (150080400101-150081199999) Pony Tiller
15009 (150090400101-150091199999) Pony Tiller
12164 (121641100101-121641199999) Pony Tiller
15010 (150100100101-UP) Econo-Horse(6hp)
15010 (E0036752-E0047260) Econo-Horse(6hp) Opc
15010 (E0047261-UP) Econo-Horse(6hp) Opc
15011 (150110100101-UP) Econo-Horse(6hp)
15011 (E0036752-E0047260) Econo-Horse(6hp) Opc
15011 (E0047261-UP) Econo-Horse(6hp) Opc
6211 (E0001001-E0008843) Econo-Horse(6hp)
6311 (E0001001-E0008843) Econo-Horse(6hp)
6411 (E0008844-E0032773) Econo-Horse(6hp) Opc
6511 (E0008844-E0032773) Econo-Horse(6hp) Opc
ECONO-HORSE OPC (E0032774-E0036751) Econo-Horse(6hp) Opc
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
15006 (M0108417-M0115494) Junior Vi Opc (4hp)
15006 (M0115495-UP) Junior Vi Opc (4hp)
12064 (120640100101-UP) Horse-Opc (7 And 8hp) Rototiller
15006C (15006C0100101-15006C0399) Junior Vi Opc (4hp)
15006S (M0100970-M0108416) Junior V Opc (4hp)
12068 (120680100101-UP) Horse-Opc (7 And 8hp) Rototiller
15021 (M0108417-M0115494) Junior Vi Opc (4hp)
15021 (M0115495-UP) Junior Vi Opc (4hp)
12069 (120690100101-UP) Horse-Opc (7 And 8hp) Rototiller
12070 (120700100101-UP) Horse-Opc (7 And 8hp) Rototiller
15021S (M0100970-M0108416) Junior V Opc (4hp)
12071 (120710100101-UP) Horse-Opc (7 And 8hp) Rototiller
50173 (M8204-M0067998) Junior Ii (3.5hp)
12074 (120740100101-120740100150) Horse-Opc (7 And 8hp) Rototiller
50204 (M8204-M0067998) Junior Ii (3.5hp)
5211 (M0067999-M0075089) Junior Iii (3.5hp)
5311 (M0067999-M0075089) Junior Iii (3.5hp)
5611 (M0075090-M0100969) Junior Iv Opc (4hp)
5711 (M0075090-M0100969) Junior Iv Opc (4hp)
12075 (120750100101-120750100450) Horse-Opc (7 And 8hp) Rototiller
12080 (120800100101-UP) Horse-Opc (7 And 8hp) Rototiller
12081 (120810100101-UP) Horse-Opc (7 And 8hp) Rototiller
12082 (120820100101-UP) Horse-Opc (7 And 8hp) Rototiller
12083 (120830100101-UP) Horse-Opc (7 And 8hp) Rototiller
12062 (120620100101 & HIGHER) Pony Opc (5hp)
12087 (120870100101-UP) Horse-Opc (7 And 8hp) Rototiller
12066 (120660100101-120660100334) Pony Opc (5hp)
12181 (121811100101-121811199999) Pony Opc 6hp
12182 (121821100101-121821199999) Pony Opc 6hp
12183 (121831100101-121831199999) Pony Opc 5.5hp
12211 (122111700101-UP) Pony 7 Hp Std
12087C (120870100101-UP) Horse-Opc (7 And 8hp) Rototiller
12212 (122121100101-122121699999) Pony 7 Hp Elec
12212 (122121700101-UP) Pony 7 Hp Elec
12088 (120880100101-UP) Horse-Opc (7 And 8hp) Rototiller
15008 (S0242650-S0254903) Pony Vii Opc (5hp)
15008 (S0254904-S0268636) Pony Viii Opc (5hp)
15008C (15008C0300101-0400101) Pony Opc (5hp)
15008C (15008C0400101-UP) Pony Opc (5hp)
15008S (150080100101-0400101) Pony Opc (5hp)
15008S (S0242650-S0254903) Pony Vii Opc (5hp)
15009 (150090400101-UP) Pony Opc (5hp)
15009 (S0242650-S0254903) Pony Vii Opc (5hp)
15009 (S0254904-S0268636) Pony Viii Opc (5hp)
15009C (15009C0300101-0400101) Pony Opc (5hp)
12088C (120880100101-UP) Horse-Opc (7 And 8hp) Rototiller
15009C (15009C0400101-UP) Pony Opc (5hp)
15020 (150200100101-0400101) Pony Opc (5hp)
Expand the 150+ compatible machines
Products Compatibility

This item works with the following types of products:

  • • Cultivator
  • • Lawn Tractor

Questions & Answers for Seal-oil


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Repair Instructions: Submitted by Customers Like You
8 of 9 people found this instruction helpful
Tool Type:
Cultivator
Parts Used:
Seal-oil - 921-04031
Seal-oil - 921-04036
Repair Difficulty:
Medium
Time Spent Repairing:
30-60 minutes
Tools Used:
Screwdriver, Hammer, washer, and pipe to drive in the seals. emery paper
Two seals were leaking oil.
1. Removed wheel and tines.
2. Removed old seals.
3. Cleaned and smooth the shaft with emery paper.
4. Installed new seal by first putting a non hardening sealant on out side of shaft.
5. Next putting in the seal, by using a washer and pipe to get the seal in all the way.
Did you find this story helpful?
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3 of 5 people found this instruction helpful
Tool Type:
Cultivator
Parts Used:
Seal-oil - 921-04031
Repair Difficulty:
Easy
Time Spent Repairing:
30-60 minutes
Tools Used:
Pliers, Awl, screw,pliers,hammer, block of wood
Axle seals leaked
Punched hole in outer edge of seal,put screw in hole,used pliers to pull seal out. New seal over the axle,used hammer and block wood to tap new seal in place.
Did you find this story helpful?
Thanks for voting and helping fellow customers!
Tool Type:
Cultivator
Parts Used:
Seal-oil - 921-04031
Seal-oil - 921-04036
Repair Difficulty:
Medium
Time Spent Repairing:
More than 2 hours
Tools Used:
Screwdriver, Pliers, Socket set, Wrench Set, Adjustable Wrench
Oil leak from gear box
replaced axle seals
Did you find this story helpful?
Thanks for voting and helping fellow customers!
Tool Type:
Cultivator
Parts Used:
Seal-oil - 921-04031
Repair Difficulty:
Medium
Time Spent Repairing:
30-60 minutes
Tools Used:
, Small punch. Pry bar.
Leaking oil around wheel shafts
Removed wheels Cleaned shafts. Punched small holes opposite each other in old seals. Carefully screwed a small sheet metal screw in each hole and connected with a piece of wire from one to the other. Used a pry bar to pull old seals. Oiled new seals and gently tapped into place.
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Thanks for voting and helping fellow customers!
Reviews
5
Average Rating (out of 5):
11 Reviews
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  • the girl on phone went to extremes to cross find my parts. excellent !
    parts are satisfactory
    Guest - May 20, 2023 Verified Purchase
    like the product and service
    keep up the good work
    Guest - March 27, 2023 Verified Purchase
    You did grate seal fit my tiller perfect got her going will always use you first thanks John s.
    John - March 13, 2023 Verified Purchase
    Easy repair
    Arrived fast
    Guest - November 27, 2022 Verified Purchase
    What we needed... and on time.
    Let's keep this very simple. Another great job by all at eReplacementParts.
    Guest - May 31, 2022 Verified Purchase
    Worked perfectly.
    Wasn’t sure if it would work and fit but it did. Came quickly too.
    Guest - May 1, 2021 Verified Purchase
    Great part
    Had a very difficult time finding this part elsewhere great to see that there is still a company out there that supplies the parts I need. This is my new go to parts company
    James - April 26, 2021 Verified Purchase
    Repair shop said parts no longer available
    My tiller was leaking oil on both axles due to worn seals. Took it to be fixed and shop said parts no longer available, but they could sell me a new machine. Took tiller home. While speaking to a neighbor told him of my situation. He said no problem. He pulled out his iPhone, Immediately went to Replacement Parts, found the seals, placed the order and in 2 weeks my machine was back in business like new. They even had replacement info on website so I did the job myself. Great neighbor!
    Guest - June 12, 2020 Verified Purchase
    Quick Delivery
    Arrived quickly, simple install
    Guest - June 2, 2020 Verified Purchase
    Quick shipping and knowledgeable staff
    Rototiller up and running@
    Guest - May 5, 2020 Verified Purchase
    Verified Purchase
    eReplacementParts Team
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