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Seal-oil 721-04612
- Manufactured by:
- MTD
- ERP Number:
- ERP16413328
- Part Number:
- 721-04612
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Frequently Purchased Together
?Troubleshooting
- Cub Cadet
- MTD
- Craftsman
- Troy-Bilt
- Snow Blower
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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.
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Main drive shaft broke on a Cub Cadet 42\" 3 stage tractor mount snow thrower
Brian from Lehighton, Pennsylvania
- Difficulty Level:
- Difficult
- Total Repair Time:
- More than 2 hours
- Tools:
- Nutdriver, Pliers, Screw drivers, Socket set, Wrench (Adjustable), Wrench set
Removed auger assembly and transmission from thrower box.
Removed augers from shafts, disassembled transmission.
Cleaned and inspected gears, replaced drive shaft, seals and main bearing (was damaged in breakage).
... Read more />Heavily greased shafts to prevent augers from rusting solid (which is what caused the shaft to snap, as the break-off bolts were rendered inoperable because drive shaft was rusted to rear auger).
Cleaned, lubed, reassembled and tested.
Replaced transmission gear oil with 75w-95 full Synthetic.
Tip: Get a good pair of snap ring pliers. I wasted probably an hour of time trying to get the C rings off and back in the transmission housing with junk $8 pliers that kept falling apart!
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Model Cross Reference
Manufacturer Part Number: 721-04612
| Brand | Model Number | Description |
|---|---|---|
| Troy-Bilt | 1154648 | Snow Blower - 1154648 - Snow Throwers |
| Troy-Bilt | 1187452 | Snow Blower - 1187452 - Snow Throwers |
| Cub Cadet | 19A40023 | Lawn Tractor Accessories - 42-Inch 3X Snow Thrower |
| Cub Cadet | 19A40023100 | Snow Blower - 19a40023100 42-Inch 3x Snow Thrower 19a40023100 |
| Cub Cadet | 19A40024 | Lawn Tractor Accessories - 42-Inch 3X Snow Thrower |
| Cub Cadet | 19A40024100 | Snow Blower - 19a40024100 42-Inch 3x Snow Thrower (2015 & Before) 19a40024100 |
| MTD | 19A40024OEM | Lawn Tractor Accessories - Attachment |
| MTD | 19A40045 | Snow Blower - 19a40045oem 42-Inch 3x Snow Thrower (2018) |
| MTD | 19B40024 | Snow Blower - 19b40024oem 42-Inch 3x Snow Thrower (2023 & After) |
| Cub Cadet | 19B40024OEM | Snow Blower - 19b40024oem 42-Inch 3x Snow Thrower (2023 And After) |
| Craftsman | 247888700 | Snow Blower - Snow Thrower |
| Craftsman | 247888701 | Snow Blower - Snow Thrower |
| Craftsman | 247888702 | Snow Blower - Snow Thrower |
| Craftsman | 247888740 | Snow Blower - Snow Thrower |
| Craftsman | 247888741 | Snow Blower - Snow Thrower |
| Craftsman | 247888742 | Snow Blower - Snow Thrower |
| Craftsman | 247889760 | Snow Blower - Snow Thrower |
| Craftsman | 247889780 | Snow Blower - Snow Thrower |
| Cub Cadet | 2X | Snow Blower - 28-Inch Hp Snow Thrower |
| Cub Cadet | 2X24-INCHHP | Snow Blower - 2x 24-Inch Hp (31am5bsr710) (2016) |
| Cub Cadet | 2X24HP | Snow Blower - 2x 24hp (Hm 2015) 31am53sr710 (Hm 2015) 31am53sr756 (Hm 2015) |
| Cub Cadet | 2X26-INCH | Snow Blower - 2x 26-Inch (31am5hvsb56) (2022) |
| Cub Cadet | 2X26-INCHHP | Snow Blower - 2x 26-Inch Hp (31am5cvs710) (2018) |
| Cub Cadet | 2X26-INCHTRAC | Snow Blower - 2x 26-Inch Trac (31ah7fvm710) (2020) |
| Cub Cadet | 2X26HP | Snow Blower - 2x 26hp (Hm 2015) 31am56ss710 (Hm 2015) 31am56ss756 (Hm 2015) |
| Cub Cadet | 2X28-INCH | Snow Blower - 2x 28-Inch (31ah5ivtb10) (2023) |
| Cub Cadet | 2X28-INCHHP | Snow Blower - 2x 28-Inch Hp (31ah54vt709) (2018) |
| Cub Cadet | 2X30-INCH | Snow Blower - 2x 30-Inch (31ah5jvub10) (2023) |
| Cub Cadet | 2X30-INCHEFI | Snow Blower - 2x 30-Inch Efi (31ah5gvo710) (2021) |
| Cub Cadet | 2X30-INCHHP | Snow Blower - 2x 30-Inch Hp (31ah5dvu756) (2020) |
Some of the parts we sell are eligible for mail-in rebates since we can recycle them. We will display any applicable rebates in your shopping cart. To redeem your rebate, contact Customer Service after you have received your part.