Overview
The ZF 0730.110.525 THRUST WASHER is a precision-engineered component designed to manage axial loads and maintain critical clearances within the planetary gear sets of ZF WG200 and WG92 series transmissions. This OEM genuine part sits between rotating shafts and stationary housings, acting as a sacrificial bearing surface that prevents metal-on-metal contact. The SKU 0730.110.525 is manufactured to exacting ZF tolerances, ensuring consistent oil film distribution and long-term durability under high-torque conditions. When installed alongside a 4660198001: PERIPHERALS kit, this thrust washer forms part of the essential load-bearing assembly that protects the 4660101011: TRANSMISSION HOUSING from premature wear.
Symptoms of Failure
- Gradual gear slipping under load: A worn 0730.110.525 thrust washer reduces end-play control, allowing planetary gear sets to shift out of alignment, causing intermittent power loss during acceleration.
- Metallic debris in transmission fluid: As the washer surface erodes, fine bronze or steel particles contaminate the oil, often visible during routine drain intervals as a “glitter” effect in the fluid.
- Audible whining or grinding from the transmission housing: Excessive axial play from a degraded thrust washer generates a low-frequency hum or grinding noise, particularly noticeable in neutral or low-gear operation.
- Erratic shift timing and harsh engagement: Worn clearances affect hydraulic pressure regulation, leading to delayed or abrupt gear changes that worsen over time.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number | 0730.110.525 |
| Material | Phosphor bronze with PTFE overlay |
| Inner Diameter | 38.10 mm (1.500 in) |
| Outer Diameter | 52.00 mm (2.047 in) |
| Thickness | 2.50 mm (0.098 in) |
| Weight | 0.045 kg (0.099 lbs) |
| OEM Reference | ZF 0730.110.525 |
| Operating Temperature Range | -40°C to +150°C |
Compatibility
This thrust washer is specifically engineered for the ZF WG200 and WG92 series transmissions, including models such as WG180, WG200, WG210, WG92-1, and WG92-2. It is a direct replacement for the factory-installed washer in the planetary carrier assembly. For proper installation, ensure the 0501209818: RANGE SELECTOR is correctly indexed, and verify that the 4660301018: HOUSING mating surfaces are free of burrs. This part is not compatible with ZF Ecomat or AS Tronic series without adapter modifications.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4660198001 | PERIPHERALS | External hydraulic control assembly |
| 0501209818 | RANGE SELECTOR | Gear range shift actuator |
| 4660101011 | TRANSMISSION HOUSING | Main structural casing |
| 4660301018 | HOUSING | Torque converter housing section |
| 0631306174 | CYLINDRICAL PIN | Alignment dowel for housing |
| 0769123894 | TYPE PLATE | Identification and rating plate |
| 4660221012 | SUCTION TUBE | Oil pickup tube for pump |
| 0634100317 | O-RING | Hydraulic seal for passages |
| 0636103273 | CAP SCREW | Fastener for housing covers |
| 0750100022 | SCREW PLUG | Drain/fill port plug |
