High-Quality Replacement Driveline Parts by — PTC Drivelines
The rear driveshaft on a Komatsu WA600-6 or WD600-6 runs on its own separate path from the transfer case to the rear axle, independent of the front driveline sections. The PTC 2022 Driveshaft (OEM: KOMATSU 426-20-34121 / 426-20-34120) replaces this section like-for-like, machined to the same dimensions as the original so it bolts straight in without any modification to the machine.
Because this shaft powers the rear wheels on a separate torque path, a problem here doesn't always show up as vibration through the whole machine — it's often more localised, felt as noise or shudder specifically toward the rear, especially during tight turns or reverse manoeuvres. It's built with precision-balanced tubing and forged yokes at each end, designed to handle that torque path reliably over years of heavy-duty loader work.
Every PTC 2022 is manufactured from high-grade steel tubing and dynamically balanced as a complete assembly. We check each unit against OEM drawings before it ships, and an inspection report is available on request.
Other driveline components from PTC Drivelines compatible with the Komatsu WA600-6 / WD600-6.
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.