Hydro-Gear ZD-DNBB-7MDC-24PX Hydrostatic Transaxle – Replacement Lawn & Garden Equipment Zero-Turn Lawn Mower Hydrostatic Transmission Drive Component

Part Number: ZD-DNBB-7MDC-24PX
Category: Lawn & Garden Equipment Replacement Parts
Type: EZT ZT-2200 Left-Hand Hydrostatic Transaxle – Zero-Turn Lawn Mower Drive Transmission

The Hydro-Gear ZD-DNBB-7MDC-24PX Hydrostatic Transaxle is a genuine OEM replacement drive transmission component designed for compatible Cub Cadet, Craftsman, Troy-Bilt, and other zero-turn lawn mowers. Part of the Hydro-Gear EZT ZT-2200 series, this left-hand hydrostatic transaxle combines a hydraulic pump, motor, and axle drive system into a compact integrated assembly. Designed to provide smooth, variable-speed wheel control and reliable mower maneuverability, it is compatible with select Cub Cadet Ultima ZT1 zero-turn mowers and replaces OEM transmission numbers 618-07468 and 618P07468. This assembly provides a replacement for worn, damaged, leaking, or malfunctioning hydrostatic drive transmissions.

Product Specifications

• Part Number: ZD-DNBB-7MDC-24PX

• Brand: Hydro-Gear

• Product Type: Hydrostatic Transaxle

• Component Type: Zero-Turn Lawn Mower Drive Transmission

• OEM Status: Genuine Hydro-Gear Replacement Part

• Transmission Series: EZT ZT-2200

• Transmission Type: Integrated Hydrostatic Transaxle

• Drive Position: Left-Hand (LH)

• Drive System: Hydraulic Pump & Motor

• Pump Displacement: 10 cc/rev (Series Specification)

• Motor Displacement: 10 cc/rev (Series Specification)

• Axle Diameter: 1" (Series Specification)

• Input Speed Range: 1,800–3,000 RPM (Series Specification)

• Maximum Output Torque: Up to 215 lb-ft (Series Specification)

• Maximum Ground Speed: Up to 7 MPH (Series Specification)

• Maximum Gross Vehicle Weight: 900 lbs. (Series Specification)

• Hydraulic Fluid Type: 20W-50 Engine Oil

• Lubrication System: Factory-Filled Hydrostatic Drive

• Filtration System: Internal Mesh Filter

• Transmission Housing: Integrated Transaxle Assembly

• Replaces Cub Cadet OEM Numbers: 618-07468, 618P07468

• Compatible Equipment Brands: Select Cub Cadet, Craftsman & Troy-Bilt

• Compatible Cub Cadet Models: Select Ultima ZT1 50, ZT1 54, ZT1 54P & ZT1 60

• Related Right-Hand Transaxle: ZD-ANBB-7MDB-34PX

• Approximate Shipping Weight: 36 lbs.

• Application: Zero-Turn Lawn Mower Hydrostatic Drive Replacement

• Package Quantity: 1 Hydrostatic Transaxle Assembly

• Condition: New

Features & Benefits

• Genuine Hydro-Gear ZD-DNBB-7MDC-24PX OEM hydrostatic transaxle

• Part of the Hydro-Gear EZT ZT-2200 transmission series

• Designed for compatible zero-turn lawn mower drive systems

• Left-hand transmission configuration for select mower applications

• Integrated hydraulic pump, motor, and axle drive assembly

• Provides smooth, variable-speed wheel control

• Supports precise steering and maneuverability during mowing

• Designed for dependable operation in compatible residential zero-turn mowers

• Factory-filled hydrostatic system reduces initial servicing requirements

• Internal mesh filtration helps protect hydraulic components

• Replaces Cub Cadet OEM transmission numbers 618-07468 and 618P07468

• Compatible with select Cub Cadet Ultima ZT1 models

• Suitable for replacing worn, damaged, leaking, or malfunctioning transmissions

• Helps restore proper drive operation and mower performance

• Provides a complete replacement transaxle for compatible equipment

Applications

• Cub Cadet Ultima ZT1 50 zero-turn lawn mowers

• Cub Cadet Ultima ZT1 54 zero-turn lawn mowers

• Select Cub Cadet Ultima ZT1 54P applications

• Select Cub Cadet Ultima ZT1 60 applications

• Compatible Craftsman Z550 zero-turn mowers

• Compatible Craftsman Z560 zero-turn mowers

• Select Craftsman Z5600 and Z5800 models

• Select Craftsman Z5650 zero-turn mower applications

• Compatible Troy-Bilt Mustang zero-turn mowers

• Hydro-Gear EZT ZT-2200 left-hand drive assemblies

• Residential zero-turn mower transmission maintenance

• Hydrostatic drive system replacement and repair

• Applications requiring Hydro-Gear ZD-DNBB-7MDC-24PX transaxles

Important Information

• Verify Hydro-Gear part number ZD-DNBB-7MDC-24PX before ordering.

• Identified as an EZT ZT-2200 integrated hydrostatic transaxle.

• Designed for the left-hand drive position on compatible zero-turn lawn mowers.

• Replaces Cub Cadet OEM numbers 618-07468 and 618P07468.

• Compatible with select Cub Cadet Ultima ZT1 50, ZT1 54, ZT1 54P, and ZT1 60 models.

• The related right-hand transmission uses a different part number, ZD-ANBB-7MDB-34PX.

• Left and right drive positions are determined while seated on the mower facing forward.

• Not every zero-turn mower uses the same hydrostatic transaxle configuration.

• Confirm compatibility using the complete mower model number, serial number, and original transmission identification label.

• Compare the original transaxle mounting configuration, axle design, and drive connections before purchasing.

• Series-level hydraulic specifications may vary depending on the exact transmission configuration.

• Includes one Hydro-Gear hydrostatic transaxle assembly.

• Does not include both left-hand and right-hand transmissions.

• Additional mounting hardware, control linkages, drive belts, and external accessories are not guaranteed unless specifically listed.

• Factory-filled EZT transaxles generally do not require routine oil changes under normal operating conditions.

• Follow Hydro-Gear's recommended hydraulic system purging procedure after installation.

• Inspect the drive belt, pulleys, control linkages, and related components before replacing the transmission.

• Ensure all mounting hardware and drive connections are properly secured before operating the mower.

• Follow Hydro-Gear's service instructions and the equipment manufacturer's installation and safety recommendations.