Overview
This ZF 0730.109.971 WASHER is an OEM genuine component engineered for precise load distribution and sealing within heavy-duty construction machinery transmissions. Positioned between fastener heads and housing surfaces, this washer prevents galling and maintains critical clamping forces under extreme torque conditions. The SKU 0730.109.971 is a factory-specified replacement part that directly interfaces with the 2093101016: HOUSING and the 2093301030: TRANSMISSION HOUSING to ensure leak-free operation in high-vibration environments.
Symptoms of Failure
- Transmission oil seepage at bolt interfaces — When the washer flattens or cracks, fluid bypasses the fastener head, causing visible drips around housing joints. This is a common “ZF transmission washer failure leak” indicator.
- Loose fasteners causing gear rattle — A collapsed washer reduces preload, allowing bolts to back off. Operators may hear metallic clattering during shifts, often searched as “transmission bolt loosening symptoms construction equipment”.
- Increased vibration at the bell housing — Uneven washer wear disrupts the mating surface alignment between the 0631311009: GROOVED STUD and housing, transmitting excess vibration through the driveline.
- Contamination ingress around fasteners — A degraded seal allows dirt and moisture to enter the transmission cavity, accelerating internal wear. This symptom is frequently queried as “how to stop dirt entering ZF transmission housing”.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 0730.109.971 |
| Material | Hardened spring steel with zinc-nickel coating |
| Inner Diameter | 14.2 mm |
| Outer Diameter | 28.0 mm |
| Thickness | 3.5 mm |
| Weight | 12 grams |
| OEM Reference | ZF 0730.109.971 |
| Hardness Rating | HRC 38-45 |
Compatibility
This washer is a standard fitment across ZF’s WG series powershift transmissions commonly used in wheel loaders, graders, and excavators. It is directly compatible with the WG180, WG200, and WG250 models. The part also integrates with the 0730365092: TYPE PLATE identification system to verify correct assembly. For final drive applications, verify housing compatibility with your specific transmission serial number.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2093101016 | HOUSING | Main structural casing for gear cluster |
| 2093301030 | TRANSMISSION HOUSING | Outer housing enclosing rotating components |
| 0730365092 | TYPE PLATE | Identification plate for transmission model |
| 0631311009 | GROOVED STUD | Threaded fastener with retention groove |
| 4475280013 | SCREW PLUG | Seals hydraulic passages |
| 2093301021 | GASKET | Prevents fluid leakage between housing halves |
| 0636302061 | SCREW PLUG | Drain or fill port closure |
| 0634801215 | SEALING RING | Static seal for plug interfaces |
| 4475280039 | SCREW PLUG | High-pressure port sealing |
| 0634303144 | O-RING | Dynamic seal for rotating shafts |
Frequently Asked Questions
Q: Can I reuse the 0730.109.971 washer during a rebuild?
No. This washer is a single-use crush-type component. Reusing it will result in incorrect torque readings and potential oil leaks. Always replace with a new OEM washer.
Q: Does this washer fit ZF 4WG200 transmissions?
Yes. The 0730.109.971 is a standard fastener washer for all WG180, WG200, and WG250 series transmissions. Verify your housing part number against the 2093301030: TRANSMISSION HOUSING for exact fitment.
Q: What torque specification should I use with this washer?
Consult your ZF service manual. Typical torque for M14 fasteners using this washer ranges from 120-140 Nm. The washer must be compressed to its specified thickness for proper sealing.
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Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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