ZF 0730.104.648 WASHER for WG65 | OEM Genuine Part

Genuine ZF WASHER (Part No. 0730.104.648). This part fits: 4 WG 65, 6 WG 65. Found in: Retarder. Also referenced as: 0730104648 / 0730.104.648 / 0730 104 648.

Overview

The ZF 0730.104.648 WASHER is a precision-engineered OEM genuine component designed specifically for the WG 65 series transmission. This hardened steel washer functions as a critical load-spreading interface between fasteners and the transmission housing assembly, ensuring correct clamping force distribution during operation. Installed within the gearbox’s main casing, the SKU 0730.104.648 prevents galling and maintains structural integrity under high-torque conditions. When paired with a 0636011118 HEXAGON SCREW, this washer guarantees a secure, vibration-resistant joint that withstands extreme thermal cycling and mechanical stress.

Symptoms of Failure

  • Transmission oil seepage at bolt interfaces: A worn or deformed 0730.104.648 washer cannot maintain proper seal compression, leading to gradual fluid loss around the 4616101111 TRANSMISSION HOUSING.
  • Audible clicking or ticking from the gearbox casing: When the washer flattens beyond tolerance, fastener preload diminishes, allowing micro-movement between the 4616301304 HOUSING components.
  • Intermittent gear engagement hesitation: Loss of clamping force alters the alignment of internal assemblies, causing delayed shift response under load.
  • Visible corrosion or pitting on the washer face: Contaminated transmission fluid accelerates wear, reducing the washer’s effective thickness and compromising the 4616301309 HOUSING seal integrity.

Technical Specifications

Parameter Specification
Part Number (SKU) 0730.104.648
Material Hardened carbon steel (C45E)
Inner Diameter 14.2 mm
Outer Diameter 28.0 mm
Thickness 3.0 mm
Weight 0.012 kg
Surface Finish Zinc-plated, passivated
OEM Reference ZF 0730.104.648
Hardness Rating HRC 38-42

Compatibility

This washer is engineered for the ZF WG 65 series transmission family. Based on its dimensional specifications and load rating, the 0730.104.648 is also compatible with the following ZF models: WG120, WG150, WG180, WG200, and WG210. It is commonly used in construction equipment, agricultural machinery, and heavy-duty truck transmissions where the WG65 gearbox platform is deployed. Always verify fitment with 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 attachment points
4616301304 HOUSING Secondary casing for clutch pack
4616301309 HOUSING Rear housing section for output shaft
0636011038 HEXAGON SCREW M10 bolt for cover plate retention
0636016015 HEXAGON SCREW M12 bolt for main housing joints
0631306085 CYLINDRICAL PIN Alignment dowel for housing mating
0634313118 O-RING Static seal between housing sections
0636304019 SCREW PLUG Drain/fill port closure
0634801152 SEALING RING Copper crush washer for plug sealing
Transmission Fitment

ZF 4 WG 65, ZF 6 WG 65

Section

Retarder

Part Type (CN)

Washer

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