ZF 0501.335.237 DISC | OEM Genuine Part

Overview

The ZF 0501.335.237 DISC is a critical friction component engineered for high-torque applications within ZF powershift transmissions used in construction machinery. This OEM genuine part functions as a clutch disc, responsible for transferring engine power through the transmission’s planetary gear sets during gear engagement. Positioned within the clutch pack assembly, the disc ensures smooth, positive shifts under heavy load conditions. The SKU 0501.335.237 identifies this specific disc as a direct replacement for factory-installed units, guaranteeing correct spline count and friction material composition for long service life in excavators, wheel loaders, and graders.

Symptoms of Failure

When the ZF 0501.335.237 DISC wears beyond tolerance, operators will notice distinct performance degradation. Transmission gear slippage under load is the most common symptom, where the machine loses power during acceleration or climbing. Delayed or harsh engagement occurs when shifting from neutral to drive or reverse, often accompanied by a noticeable shudder. Burnt transmission fluid odor indicates the friction material has overheated and is disintegrating. Finally, erratic shift patterns or the transmission failing to hold a selected gear at low RPMs point directly to a worn disc pack requiring immediate replacement.

Technical Specifications

Compatibility

This disc is designed for integration into ZF heavy-duty transmission models commonly found in construction equipment. It is a direct fit for the ZF WG180, WG200, and WG210 series transmissions. Additionally, it is compatible with the ZF Ergopower and ZF Ecomat series used in mid-sized wheel loaders and telehandlers. Always verify the spline count and stack height against your existing clutch pack before installation.

Related Components

During a clutch pack rebuild, it is standard practice to replace the disc alongside the 0750117075: TAPER ROLLER BEARING to ensure proper shaft alignment. The 2093109028: DIFFERENTIAL and 2093209094: DIFFERENTIAL assemblies also rely on consistent torque delivery from a healthy disc pack. Furthermore, the 2093309078: DIFF.HOUSING must be inspected for wear when replacing this disc.

Frequently Asked Questions

Q: How do I know if the 0501.335.237 disc is the correct thickness for my transmission?
A: Measure the total stack height of your existing clutch pack with a micrometer. The new disc should match the original thickness of 3.5 mm. If the pack height is below specification after installing a new disc, you may need to replace additional steel plates or thrust washers.

Q: Can I reuse the old steel separator plates with this new disc?
A: It is not recommended. Worn steel plates develop heat spots and glazing that will accelerate wear on the new friction disc. Always replace both friction and steel plates as a matched set for optimal performance.

Q: Is this disc compatible with synthetic transmission oil?
A: Yes, the sintered bronze friction material is compatible with most mineral and synthetic ZF-approved oils (e.g., ZF TE-ML 03 or 05 specifications). However, always consult your equipment manual for the exact fluid viscosity.