High-Quality Replacement Driveline Parts by — PTC Drivelines
The PTC1002 Spider Assy – Rear delivers dependable torque transfer and rotational support within the differential assembly of the Komatsu HD 1500-7 heavy-duty rigid dump truck. As a core drivetrain element, the spider assembly plays a key role in evenly distributing driving force across the axle system, helping the machine hold traction and stability while carrying heavy loads over long working cycles — a requirement common to mining, quarrying, and large-scale earthmoving sites. It is equivalent to OEM part 42C-20-12620 from KOMATSU.
Positioned at the rear of the differential core, this spider assembly continuously absorbs walking, driving, shock, and torque loads generated during operation. Engineered to withstand this level of mechanical demand, the PTC1002 Spider Assy – Rear holds its structural integrity and rotational balance even through prolonged, high-torque duty cycles.
Manufactured under a controlled production process using long-life materials, the PTC1002 offers consistent fitment, dimensional accuracy, and dependable load-bearing capacity. This ensures easy coupling to mating differential parts, minimizes unscheduled downtime, and minimizes early wear. The spider assembly is designed to be rugged, durable, and capable of meeting the demands of transporting heavy machinery over long distances in mining and earthmoving applications.
Other driveline components from PTC Drivelines compatible with the Komatsu HD 1500-7.
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.