UMC Centre Pivot Parts – Gearboxes, Couplers & Drives
Water Dynamics supplies genuine UMC (Universal Motion Components) gearboxes, couplers, and drives for centre pivot irrigation systems across Australia. As the market leader in irrigation solutions, we stock the full range of UMC parts to keep your pivot systems running at peak performance.
Quick Links
- UMC 740-U Gearbox
- UMC 765-U Gearbox
- UMC TNT-2 Gear Box
- UMC Universal Joint & Couplers
- UMC Center Drive Motors
- UMC booster Pumps
- Gearboxes
- Tower Control Boxes
UMC 740-U & 740-UV Gearboxes
Our UMC 740 series gearboxes are engineered for reliability, strength, and long service life in demanding irrigation applications. Built with reinforced housings and heavy-duty components, they deliver the performance growers depend on year after year.
Features and Benefits
- Larger input bearings and reinforced housing for added durability and smoother operation
- High-strength cast iron bolt-on end caps to extend service life
- Convenient top oil fill provision for easy maintenance
Two Versions Available
- 740-U Gearbox – A robust, proven option designed for general wheel drive applications.
- 740-UV Gearbox – A Valley®-style wheel drive gearbox featuring a 52:1 worm gear ratio, the industry standard for most irrigation systems.
Product Information
Both models are built to perform under heavy loads, providing growers with confidence and consistent operation across their irrigation systems.

UMC 765-U Gearbox
The UMC 765-U gearbox is ideal for larger spans and more demanding irrigation systems. It offers improved bearing life and enhanced efficiency for long-term reliability.
- Heavy-duty bearings
- Extended service life
- Improved performance in tough soils

UMC TNT-2 Gearbox
The UMC TNT-2 gearbox is built for strength, reliability, and flexibility in centre pivot and linear irrigation systems. Designed for towable applications, it allows you to easily disengage the worm, move your system, and re-engage for operation.
- Heavy-duty, weather-resistant construction
- Simple tow-and-go functionality for towable pivots
- Optimised for precise tower alignment
- Compatible with Valley, Zimmatic, Reinke, T-L and other major brands

UMC Universal Joint & Couplers
UMC universal joints and couplers provide secure connections between pivot drive shafts, ensuring smooth torque transfer and reliable operation.
- High-strength steel construction
- Easy replacement and maintenance
- Available in multiple sizes

UMC Center Drive Motors
UMC center drives are engineered to provide consistent and efficient power to pivot irrigation systems. Designed for Australian farms, they ensure minimal downtime and maximum efficiency.
- High-efficiency motor design
- Durable and weather-protected housing
- Compatible with most pivot systems

UMC booster pumps
Our UMC booster pumps are designed for reliable water pressure boosting across centre pivot and linear irrigation systems, ensuring consistent flow and efficient crop irrigation. Built for durability and long service life, these pumps are compatible with most major irrigation brands.
- BP2HP-U, 2HP Booster Pump – Compact and reliable 2HP motor for consistent performance
- BP5HP-U, 5HP Booster Pump – Higher capacity 5HP pump for large-scale irrigation applications
- 06168-196A, 132GPH Booster Pump with Kit – Complete kit for easy installation and efficient operation
- BP2.2KW 50Hz, 2.2kW Booster Pump – Powerful 2.2kW motor designed for 50Hz power systems
Key Benefits:
- Heavy-duty, weather-resistant construction
- Optimised for smooth pivot and linear system operation
- Compatible with Valley, Zimmatic, Lindsay, Reinke irrigation systems
- Easy to install and maintain in field conditions

Gearboxes
Our range of T-L compatible gearboxes are designed for durability, precision, and seamless operation in hydraulic-driven irrigation systems. Built for tough field conditions, these gearboxes provide reliable power transfer and smooth movement across your pivot or linear machine.
UMC 740-U Master Gearbox (10141-103KU)
Heavy-duty master unit with splined hydraulic input for high-torque performance.
Features and Benefits:
- Hydraulic input for direct motor coupling
- 2.25″ diameter steel output shaft
- 50:1 gear ratio
- Cartridge input and output seals
- Large input bearings
- Full cycle external expansion chamber with stainless steel cover
- 11-Bolt mounting pattern
- External seal protectors for input and output seals
- Top oil fill plug
- Filled with extreme pressure gear oil
- Positive wheel register

UMC 740-U Slave Gearbox (10141-105KU)
Dependable slave unit built to operate in tandem with the master gearbox for precise tower alignment
- 2.25″ diameter steel output shaft
- 50:1 gear ratio
- Cartridge input and output seals
- Large input bearings
- Full cycle external expansion chamber with stainless steel cover
- 11-Bolt mounting pattern
- External seal protectors for input and output seals
- Top oil fill plug
- Filled with extreme pressure gear oil
- Dual ended input shaft with a hub cap for the unused end
- Positive wheel register
UMC Planetary Wheel Drive Gearbox (68:1, 09760-115A)
- High-torque planetary design for maximum pulling strength in demanding terrain
UMC Planetary Wheel Drive Gearbox (24:1, 09760-115B)
- Lower-ratio planetary gearbox offering faster wheel speed while maintaining reliability

Tower Control Boxes
Our tower control boxes are designed to deliver reliable movement control, electrical protection, and precise alignment for centre pivot and linear irrigation systems. Available in Zimmatic, Valley, Lindsay, Reinke, T-L and compatible styles, these boxes are built tough for long-lasting field performance.
- Intermediate Tower Boxes – Ensure smooth operation and alignment across pivot spans
- End Tower Boxes – Provide precise control at the outer pivot tower
- Stall Tower Boxes – Protect your system from misalignment and stall conditions
- Booster Pump Tower Boxes – Integrate pump and end tower control in one unit
- Heavy-duty, weatherproof housings built for Australian farming conditions
- Compatible with Valley, Zimmatic, Lindsay, and Reinke systems
Whether you need a replacement lid, a complete end tower box, or a booster pump combo, our range of tower control boxes ensures safe, reliable, and efficient irrigation system operation.

Need Genuine UMC Pivot Parts?
Contact Water Dynamics today for pricing, availability, and expert advice on UMC gearboxes, drives, and couplers. Get a Quote
Frequently Asked Questions
Are UMC parts compatible with all pivot systems?
Yes, UMC gearboxes and drives are designed to fit most major centre pivot irrigation brands used in Australia.
Do you stock replacement parts locally?
Yes, Water Dynamics holds stock of common UMC gearboxes, couplers, and drives for fast delivery nationwide.
How are UMC parts installed?
For optimal performance and reliability, all UMC parts should be installed by our qualified irrigation technicians. This ensures correct setup, extends the life of your equipment, and provides you with the confidence that the job has been done to the highest standard.
Looking for reliable gearboxes, couplers, or centre drive motors? We’ve got you covered!
Great range to fit Valley, Zimmatic, Bauer, Pierce, Reinke, and more.Quality aftermarket solutions to keep your pivot running smoothly.
Water Dynamics – keeping your irrigation system moving.