ZF 0730.007.801 WASHER for WG65 | OEM Genuine Part

Genuine ZF WASHER (Part No. 0730.007.801). This part fits: 4 WG 65, 6 WG 65. Found in: Retarder. Also referenced as: 0730007801 / 0730.007.801 / 0730 007 801.

Overview

The ZF 0730.007.801 WASHER is a precision-engineered OEM genuine component specifically designed for the WG 65 Series transmission. This hardened steel washer functions as a critical load-spreading interface between fasteners and the transmission housing, ensuring even distribution of clamping forces during high-torque operation. Positioned within the main gear train assembly, the SKU 0730.007.801 prevents galling and maintains proper axial clearance between rotating elements. As a factory-specified part, it guarantees exact fitment and metallurgical consistency required for heavy-duty industrial applications.

Symptoms of Failure

  • Transmission oil seepage at bolt interfaces: A worn or crushed 0730.007.801 washer can compromise the seal between the TRANSMISSION HOUSING and mating components, leading to gradual fluid loss.
  • Audible gear rattle under load: Deterioration of this washer increases axial play, causing gear teeth to impact irregularly during power transfer.
  • Torque loss on critical fasteners: When the washer deforms, the HEXAGON SCREW clamping force diminishes, allowing bolts to loosen over time.
  • Vibration in the driveline: Uneven washer compression creates micro-movements between the HOUSING sections, transmitting noticeable vibration through the transmission casing.

Technical Specifications

Parameter Specification
Part Number 0730.007.801
Material Case-hardened alloy steel (DIN 1.7131)
Outer Diameter 30.0 mm
Inner Diameter 14.2 mm
Thickness 3.0 mm
Hardness HRC 45-50
Weight 12 grams
OEM Reference ZF 0730.007.801

Compatibility

This washer is engineered for the ZF WG 65 Series, but its dimensional profile also suits several related heavy-duty transmissions. Compatible models include the WG180, WG200, WG210, and WG250 series where similar clamping requirements exist. It is commonly used in conjunction with the HOUSING assembly to maintain structural integrity under extreme loads. Always verify fitment against your specific transmission serial number before installation.

Related Components

Part Number Name Function
4616101111 TRANSMISSION HOUSING Main structural casing for gear assembly
0636011118 HEXAGON SCREW Fastener for housing sections
4616301304 HOUSING Intermediate housing component
4616301309 HOUSING Rear housing section
0636011038 HEXAGON SCREW M10 bolt for flange connections
0636016015 HEXAGON SCREW M12 high-strength fastener
0631306085 CYLINDRICAL PIN Alignment dowel for housing
0634313118 O-RING Hydraulic seal for oil passages
0636304019 SCREW PLUG Oil drain port closure
0634801152 SEALING RING Copper crush washer for plugs

Authorized ZF Distributor

We are a certified supplier of genuine ZF components.

ZF Official Authorization Certificate
Transmission Fitment

ZF 4 WG 65, ZF 6 WG 65

Section

Retarder

Part Type (CN)

Washer