Easy
30-60 minutes
This is a genuine replacement part sourced from the original manufacturer for use with tillers. The special gear box assembly is used to drive the tiller's tines and includes the axle and gears. This gear box assembly is available as an individual replacement part, please see model diagram for associative parts.
Gearbox Asm Cult 753-06063
OEM part for: MTD, Troy-Bilt, Bolens, Cub Cadet
Part Number: 753-06063
$128.08
In Stock
Ships within 1 business day 
Compatibility
This part will fit the following 20 machines
MTD
MTD14421AA144R978 (2009) Tiller View Diagrams & Manuals
MTDC57 (21AK20VG706) Cordless Electric Tiller View Diagrams & Manuals
21AA144R978 (2009) Tiller View Diagrams & Manuals
C57 (21AK20VG706)(2012) Cultivator View Diagrams & Manuals
Troy-Bilt
21CA144R966 (TB144) (2009) Cultivator View Diagrams & Manuals
TB146EC (21AK146G966) (2010) Tiller View Diagrams & Manuals
TB146EC (21BK146G966) (2011) Super Bronco Tiller View Diagrams & Manuals
TB225 Tiller View Diagrams & Manuals
21AK146G766 (TB146EC)(2012) Tiller View Diagrams & Manuals
21AK146G766 (TB146EC)(2013) Tiller View Diagrams & Manuals
21AK146G966 (TB146EC) Tiller View Diagrams & Manuals
21BK146G966 (TB146EC)(2011) Tiller View Diagrams & Manuals
21BKC304766 (TBC304) Tiller View Diagrams & Manuals
Bolens
BL425-21AK125G965 Tiller View Diagrams & Manuals
Cub Cadet
GC720 (41CJGC-C954) Attachment View Diagrams & Manuals
GC145 (21BK145G912) (2010) 21BK145G Tiller View Diagrams & Manuals
GC145 (21BK145G912) (2011) 21BK145G Tiller View Diagrams & Manuals
CC148 (21AK148G912) (2013) 21AK148G912 Tiller View Diagrams & Manuals
CC148 (21AK148G912) (2014) 21AK148G912 Tiller View Diagrams & Manuals
CC148 (21AK148G912) (2015) 21AK148G912 Tiller View Diagrams & Manuals
Show More Compatible Models
This item works with the following types of products:
- Cultivator Parts
Customer Part Reviews ?
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Worked as expected.
An easy replacement. Works like new.
Guest -
May 24, 2022
Verified Purchase
Perfect fit.
Just what the tiller doctor ordered. Well packaged, arrived in perfect shape. Installation was simple.
Guest -
November 9, 2021
Verified Purchase
Easy replacement
Arrived ahead of schedule. Took less than half hours to have the cultivator back in action.
Guest -
April 14, 2020
Verified Purchase
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Verified Purchase
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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.
Easy if you know what to remove first
EDWIN - June 6, 2016
👍 4 of 4 people found this instruction helpful
Tool Type
Cultivator
Difficulty
Medium
Time
More than 2 hours
Tools Used
Screwdriver, Socket set, Wrench Set, Torx bits, needle nose pliers
Parts Used
Two screws allow you to remove the motor assembly from the lower unit. Remove the tines. Remove the two bolts attaching gear box to the frame. Loosen the other two screws and remove the gearbox. One set screw lets you remove the tubing with flex drive shaft from gear box. Tug on it if it doesn't come out. Replace with the new gear box.
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Gear box assembly.
Marvel - June 22, 2017
👍 1 of 1 people found this instruction helpful
Tool Type
Cultivator
Difficulty
Easy
Time
30-60 minutes
Tools Used
Screwdriver, Wrench Set, Adjustable Wrench
Parts Used
Removed the bad gear box assembly and replaced with the new gear box assembly. No problems occurred during replacement. I put it to work on completion of assembly.
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Gear box froze up
paul - May 13, 2017
👍 1 of 1 people found this instruction helpful
Tool Type
Cultivator
Difficulty
Easy
Time
15-30 minutes
Tools Used
Socket set
Parts Used
Very easy gearbox removal. Replaced with the new box very easy!
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gear box was not turning
John - July 29, 2023
Tool Type
Cultivator
Difficulty
Easy
Time
30-60 minutes
Tools Used
Socket set, Wrench Set, Nutdriver
Parts Used
1 - removed motor
2 - removed old clutch from motor and replaced with new
3 - removed old gear box
4 - removed tines from old gear box
5 - tines were loose on shaft, would not come off, used sawz all to cut shaft
5 - installed new gear box
6 - installed motor
7 - installed tines on new gear box
2 - removed old clutch from motor and replaced with new
3 - removed old gear box
4 - removed tines from old gear box
5 - tines were loose on shaft, would not come off, used sawz all to cut shaft
5 - installed new gear box
6 - installed motor
7 - installed tines on new gear box
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Broken gear Box assembly.
JLee - June 14, 2018
Tool Type
Cultivator
Difficulty
Easy
Time
30-60 minutes
Tools Used
Screwdriver, Pliers, Socket set, Adjustable Wrench
Parts Used
Removed tines and the old gearbox from motor. Installed the new gearbox on motor and replaced tines.
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Transmission was assembled with missing parts causing gear failure.
Chris - October 27, 2017
Tool Type
Cultivator
Difficulty
Medium
Time
1-2 hours
Tools Used
Screwdriver, Pliers, Socket set, Wrench Set, 2 bent pry bars
Parts Used
Removed the tines and marked for correct reassembly and direction. Removed motor assembly that was stuck in transmission with blocks of wood and pry bars. Lubed flexable shaft with grease, checked for grease in replacement transmission assembly and reassembled all parts.
Remember to remove the 6mm locking bolt that secures motor to transmission " on right side of transmission below deck"
Remember to remove the 6mm locking bolt that secures motor to transmission " on right side of transmission below deck"
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Our customer service team are at the ready daily to answer your part and product questions. We have a dedicated staff with decades of collective experience in helping customers just like you purchase parts to repair their products.
All our part reviews are solicited directly from other customers who have purchased this exact part. While we moderate these reviews for profanity, offensive language or personally identifiable information, these reviews are posted exactly as submitted and no alterations are made by our team.
All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part. While we moderate these reviews for profanity, offensive language or personally identifiable information, these reviews are posted exactly as submitted and no alterations are made by our team.
Based on data from past customer purchasing behaviors, these parts are most commonly purchased together along with the part you are viewing. These parts may be necessary or helpful to replace to complete your current repair.
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This data is collected from customers who submitted a repair instruction after replacing this exact part. Customers can rate how easy the repair was to complete and how long it took. We aggregate this data to provide a repair rating that allows customers to quickly determine the difficulty and time needed to perform their own repair.
