High-Quality Replacement Driveline Parts by — PTC Drivelines
In the Komatsu D375A driveline, the spider is at the centre of every driveline bearing joint and is subjected to massive torque stresses at every gear change and grade change on a machine as heavy as this one. This is one part that, when it wears, is usually first noticed by the operator as a lag in steering or a knock at the transmission-to-final-drive shaft. PTC 1086 is designed to have the same cross diameter, trunnion length and bearing seat tolerance as Komatsu 195-20-33100 / 195-20-31100W to fit into the original joint yoke without any custom fabrication. The cross has been hardened alloy steel, and the bearing races have been ground to ensure tight rotational tolerance, which helps to minimise backlash over time and allows for repeated shock loads. This is essential for those machines that operate in the harsh environment of a mining or quarry site, as it maintains grease retention and excludes abrasive site debris. With PTC 1086, maintenance teams have a reliable, easily accessible alternative to maintaining Komatsu D375A units.
Other driveline components from PTC Drivelines compatible with the Komatsu D375A5.
Whether you need OEM-compatible spare parts for your mining fleet, a reliable export supply partner, or want to become a regional distributor — our team is ready to help within 24 hours.
If the required part number is not listed in our product range, simply share the part number, drawing, dimensions, or technical specifications with us. Our team can review your requirement and manufacture the part to your preferred specifications.