Overview
The ZF 0730.306.455 WASHER is an OEM genuine shim component engineered for precise axial clearance control within ZF heavy-duty construction machinery transmissions. This hardened steel washer sits between the planetary gear carrier and the housing assembly, ensuring correct preload and alignment of rotating elements. As a critical spacing component, the SKU 0730.306.455 directly influences gear mesh accuracy and overall drivetrain durability. When paired with the 4699101159 HOUSING or the 4699301254 HOUSING, this washer maintains optimal bearing end-play, preventing premature wear on adjacent thrust surfaces.
Symptoms of Failure
- Transmission oil leaks at housing seams: A worn 0730.306.455 washer allows excessive axial movement, distorting housing gaskets and causing fluid seepage around the 4699309123 HOUSING COVER.
- Gear slipping under load in construction equipment: Insufficient washer thickness reduces clutch pack clamping force, leading to intermittent power loss during excavation or grading operations.
- Metallic grinding noise from planetary section: Degraded washer material permits metal-on-metal contact between the gear carrier and the 4699298049 HOUSING KIT, producing audible chatter during low-speed maneuvers.
- Elevated operating temperatures: Increased friction from improper clearance generates heat, often detected as burnt transmission fluid odor or dashboard warning lights.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 0730.306.455 |
| Material | Hardened carbon steel (DIN 1.0503 equivalent) |
| Outer Diameter | 42.0 mm |
| Inner Diameter | 28.5 mm |
| Thickness | 1.5 mm |
| Weight | 12 g |
| OEM Reference | ZF 0730.306.455 |
| Surface Finish | Ground, deburred edges |
Compatibility
This washer is integral to ZF WG180, WG200, and WG211 series transmissions commonly deployed in wheel loaders, excavators, and telehandlers. It also appears in select ZF 4WG-200 and 6WG-200 variants used by OEMs such as Caterpillar, Liebherr, and Volvo CE. Always verify clearance requirements when replacing alongside the 0636104255 CAP SCREW or 0631306174 CYLINDRICAL PIN.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4699101159 | HOUSING | Main transmission casing for gear support |
| 4699301254 | HOUSING | Intermediate housing for planetary assembly |
| 4699298049 | HOUSING KIT | Complete housing with seals and bearings |
| 4699309123 | HOUSING COVER | End cover protecting internal components |
| 0636104255 | CAP SCREW | Fastener for housing attachment |
| 0631306174 | CYLINDRICAL PIN | Alignment dowel for precise assembly |
| 0636302013 | SCREW PLUG | Seals hydraulic passages |
| 0501331653 | SCREW PLUG | Magnetic drain plug for debris capture |
| 0634801038 | SEALING RING | Prevents fluid leakage at joints |
| 0637885613 | BREATHER | Equalizes internal pressure |
