Overview
The ZF 0730.101.795 WASHER is a precision-engineered OEM genuine component designed exclusively for the WG 65 Series transmission. This hardened steel washer functions as a critical load-spreading interface between fasteners and the transmission housing, ensuring clamping force is evenly distributed during high-torque operation. Located within the main gear train assembly, the SKU 0730.101.795 prevents galling and maintains proper preload on mating surfaces. When installed alongside the 4616101059: TRANSMISSION HOUSING, this washer provides essential axial retention for planetary gear sets, directly influencing shift quality and drivetrain longevity.
Symptoms of Failure
- Transmission fluid seepage at bolt interfaces: A worn or crushed 0730.101.795 washer compromises the seal between the 0636011038: HEXAGON SCREW and the housing, leading to slow oil leaks that appear as dark residue around fasteners.
- Audible metallic clicking during gear engagement: Deterioration of the washer’s flatness allows fastener loosening, causing the 0636011118: HEXAGON SCREW to vibrate against the housing under load.
- Intermittent gear slippage under heavy load: Loss of clamping force from a collapsed washer reduces friction between clutch packs, mimicking hydraulic failure symptoms.
- Elevated operating temperatures near bolt bosses: Excessive play from a failed washer generates localized heat, detectable during thermal inspection of the transmission pan.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 0730.101.795 |
| Inner Diameter | 14.2 mm |
| Outer Diameter | 28.0 mm |
| Thickness | 2.5 mm |
| Material | Case-hardened carbon steel (DIN 17222) |
| Surface Finish | Zinc-plated, passivated |
| Hardness | 45-50 HRC |
| Weight | 8.5 g |
| OEM Reference | ZF 0730.101.795 |
| Torque Rating | Compatible with M12 fasteners up to 120 Nm |
Compatibility
This washer is engineered for the ZF WG 65 Series, but its dimensions and load rating make it suitable for several ZF off-highway transmissions. Verified compatibility includes the WG65, WG120, WG180, and WG200 models. It is also used in select ZF 4WG-200 and 6WG-310 torque converter housings where the 0636016015: HEXAGON SCREW secures the oil pump assembly. Always cross-reference your transmission serial number to confirm fitment, as minor variations exist between pre-2005 and post-2005 production runs.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4616101059 | TRANSMISSION HOUSING | Main structural casing for gear train |
| 0636011038 | HEXAGON SCREW | M12 fastener for housing assembly |
| 0636011118 | HEXAGON SCREW | M14 fastener for clutch pack retention |
| 0636016015 | HEXAGON SCREW | M16 fastener for pump housing |
| 0631306085 | CYLINDRICAL PIN | Alignment dowel for housing halves |
| 0634313118 | O-RING | Static seal for oil gallery ports |
| 0636304019 | SCREW PLUG | M18 drain port closure |
| 0634801152 | SEALING RING | Copper crush washer for drain plug |
| 0732611049 | FILTER INSERT | Suction strainer for hydraulic circuit |
| 0634303718 | O-RING | Seal for filter housing cover |
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