Selected Part Number: 918-05128A
Click Here to Buy LefteBay Ambassador link. PTO Direct USA may earn a commission from qualifying purchases. This item is sold and fulfilled by the seller on eBay. We provide this alternate purchasing option when a product is out of stock or unavailable through our distribution network, helping you locate the part you need without reaching an out-of-stock dead end.
Hydro-Gear Transaxles for Cub Cadet 918-05128A / 918-05129A — Left or Right
Overview
Replace the left or right drive transmission on select Cub Cadet RZT-L, RZT-LX, Troy-Bilt Mustang and Craftsman zero-turn mowers with a new Hydro-Gear EZT transaxle. Choose 918-05128A left or 918-05129A right using the selector above.
These are complete hydrostatic drive assemblies sold individually by Timberturf Power Equipment on eBay. For both sides, order one left unit and one right unit. Match your original transmission tag with the manufacturer numbers below.
Choose the Correct Side
| Position | OEM Reference | Hydro-Gear Number |
|---|---|---|
| Left / LH | 918-05128A | ZC-DMBB-4MDC-24PX |
| Right / RH | 918-05129A | ZC-AMBB-4MDB-34PX |
Left and right are determined while seated on the mower, facing forward. The complete Hydro-Gear number identifies the configuration for each side.
Key Features & Details
- Manufacturer: Hydro-Gear
- Product family: ZT-2200 / EZT
- Drive type: integrated hydrostatic transaxle
- Condition: new
- Options: left or right, sold individually
- Wheel hubs: not included, as specified by the seller
OEM Part Numbers & Supersessions
- Left-side references: 918-05128 and 918-05128A; current OEM service number 918-05128B
- Right-side references: 918-05129 and 918-05129A; current OEM service number 918-05129B
Cub Cadet's current parts catalog supersedes the earlier numbers to the corresponding B-suffix service assembly. Timberturf lists these same OEM references for the linked Hydro-Gear units. Original parts literature may also identify the assemblies as 618-05128A left and 618-05129A right.
Confirmed Cub Cadet Fitment
Cub Cadet's 2014 RZT-L parts manual specifies 918-05128A left and 918-05129A right together in the drive system. Cub Cadet associates that manual with these model numbers:
| Mower | Full Model Number |
|---|---|
| RZT-L42 | 17ARCACS010 |
| RZT-L46 | 17AICACT010 |
| RZT-L50 KH | 17ARCACP010 17ARCACP056 |
| RZT-L54 KH | 17ARCACA010 |
| RZT-L54 KW | 17AICACA010 |
OEM reference: Illustrated Parts Manual 769-09589, Drive System, items 2 and 3. Use the full model number on the mower's identification tag when checking your application.
Additional Catalog Applications
Timberturf also lists the following configurations for these replacement references:
| Mower | Model Number | Listed Years |
|---|---|---|
| Cub Cadet RZT-LX 54 KW FAB | 17AICAXA010 | 2017 |
| Troy-Bilt Mustang 54 XP | 17ARCACW309 | 2018–2019 |
| Craftsman Z6000 | 17AKCACS099 247.204112 |
2016–2018 |
| Craftsman Z6400 | 17BRCACT099 247.204182 |
2015–2016 |
These additional entries are seller-catalog applications. Confirm the OEM transmission reference and original Hydro-Gear tag for your mower's production configuration.
Before You Order
Photograph the identification label on the transaxle being replaced. Compare the complete model code, axle and hub arrangement, mounting points, control arm, brake linkage, bypass control, pulley and cooling fan with the selected offer. Review the seller's photographs for included components and any original hardware that must transfer.
Replacing both sides? Identify both original units and order one of each side using the selector above.
Parts Help From PTO Direct USA
Text a Photo. Get Parts Help.
Text your mower's model and serial tag plus a clear photo of the Hydro-Gear identification label to 541-361-8778. We'll help match the OEM reference and the correct side.
Open the Parts DeskFitment support before and after purchase. Call or text 541-361-8778, or email photos to support@ptodirectusa.com.
Buying Through Our Partner
Select the required side above and click the buy button to view that unit on eBay. Timberturf Power Equipment handles payment, fulfillment, returns and order-related warranty service. The seller's listing provides current pricing, availability, delivery estimates and purchase terms.
PTO Direct USA may earn a commission from qualifying purchases through links on this page, at no additional cost to you.
Need another transmission? Browse our lawn mower transaxles and hydrostatic transmissions.