KOMATSU 426-20-32620 OE Part Manufacturers in India

The front and rear spider positions on a Komatsu WA600-6 or WD600-6 carry a steady, continuous load as the machine works its driveline through every load cycle — and that constant duty is exactly why this joint needs a component built to hold up over the long haul. The PTC 1031 Spider Assembly (OEM: KOMATSU 426-20-32620) is a direct drop-in replacement for these positions, matching all OEM dimensions with no modification needed to fit.

This spider is used at both the front and rear universal joint positions on the WA600-6/WD600-6 driveline, letting the propeller shaft flex as torque runs from the transmission out to the axles. It's a precision-machined alloy steel cross with four trunnion arms, each carrying a needle roller bearing cup that takes the full rotational load through every cycle. Because the same part covers two positions on the machine, keeping a spare on hand for scheduled service is common practice rather than waiting for a failure at either end to force a shutdown. We forge the PTC 1031 from high-grade alloy steel for stronger fatigue resistance than a cast equivalent, and every unit is checked against OEM drawings before dispatch. An inspection report is available on request.