At Jaytrac, we offer the complete package. In addition to the vast range of replacement engine and machine parts, we stock and distribute a complete range of high-quality replacement transmission and powertrain parts for Caterpillar and Komatsu.

The earliest earthmoving machines were based on agricultural tractors and utilised direct drive manual gearboxes. Following developments in the USA automotive industry in the 1940/50s construction equipment manufacturers used power trains based around torque Convertors, planetary gear groups and power shift transmissions.

One of the first Caterpillar tractors to go into production with power shift transmissions was the legendary D8H tractor in 1959. Marketed as ‘split second shifts’ the transmission reduced cycle time between forward & reverse. Production and operator efficiency were significantly improved due to the ease of use and comfort of the design.

High performing friction discs and clutch plates are essential to the longevity and performance of powertrain components. Jaytrac supply discs and plates components from OE quality manufacturers.

Our stock includes but is not limited to:

  • Gears
  • Carriers
  • Friction discs and plates
  • Bearings
  • Torque converters
  • Joints and spiders
  • Driveshafts
  • Crown wheel and pinion
  • Final Drives

Our replacement transmission parts are of the highest quality, and we stock a wide range of products to suit multiple Caterpillar and Komatsu machinery applications

Alongside over 20 years of industry experience, Jaytrac is an official distributor for Original ZF Power Train and Axle Parts. As a global technology company at the forefront of commercial vehicle and industrial technology development, ZF paves the way for transport and mobility solutions. Working alongside one of the most respected names in the industry, Jaytrac is well equipped to ensure our customers receive the right product at the right price. 

Spanning across its 100 year history, ZF has evolved into one of the most respected names in the industry, producing a vast range of innovative products within the realms of automotive and technology.  Across its impressive history, ZF has contributed to the manufacturing of gears for Zepplin airships, electronic calculators, satellites and more. 

For more information about the transmission products we supply, our partnership with ZF, or to enquire about our other products and services, contact us today on 01604 491 133 or email us at