ZF 4699.397.045 ADAPTER PLATE | OEM Genuine Part

Overview

The ZF 4699.397.045 ADAPTER PLATE is a precision-machined structural component that serves as the critical interface between the transmission housing and the torque converter assembly in heavy-duty construction machinery. This OEM genuine part, identified by SKU 4699.397.045, ensures correct axial alignment and load distribution within the drivetrain. It mounts directly to the HOUSING and provides the mounting surface for the INPUT shaft assembly, while also sealing the internal oil circuit against debris ingress. Without this adapter plate, the transmission cannot maintain proper gear mesh geometry or hydraulic pressure integrity.

Symptoms of Failure

• Transmission oil seepage at the bell housing joint — When the adapter plate warps or its sealing surface corrodes, pressurized ATF leaks past the gasket, leaving visible drips under the vehicle after shutdown.
• Intermittent gear engagement hesitation — A worn plate allows the torque converter to shift out of alignment, causing delayed or rough shifts when the transmission is under load during excavation or grading operations.
• Vibration during PTO operation — Cracks in the plate’s bolt flange transmit harmonic vibrations through the OUTPUT shaft, felt as a low-frequency shudder in the cab at specific RPM ranges.
• Metal particles in the oil pan — Fretting wear between the plate and the GK10LD clutch drum generates fine metallic debris that contaminates the hydraulic system.

Technical Specifications

Compatibility

This adapter plate is engineered for ZF’s WG-series powershift transmissions commonly found in wheel loaders, telehandlers, and excavators. It is a direct fit for the WG180, WG200, and WG210 models. It also supports the 4WG200 and 6WG200 variants used in articulated dump trucks. Always verify the transmission serial number against the OEM parts catalog before installation, as minor casting revisions exist between production years.

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