ZF 0730.003.456 SHIM for WG150 | OEM Genuine Part

Overview

The ZF 0730.003.456 SHIM is a precision-engineered adjustment component designed exclusively for the WG150 series transmission. This OEM genuine part ensures correct axial clearance between the planetary gear sets and the transmission housing, preventing excessive end-play that can lead to premature bearing wear. The SKU 0730.003.456 is a factory-specified shim that must be selected during rebuild or repair to restore factory tolerances. It sits directly between the TRANSMISSION HOUSING and the rotating assembly, acting as a critical spacer that maintains gear alignment and load distribution.

Symptoms of Failure

• Oil leaks from the transmission housing seam: When the 0730.003.456 shim compresses or cracks, the seal between the TRANSMISSION HOUSING and the cover plate can fail, causing fluid seepage during operation.
• Gear slipping under load in WG150 transmissions: Worn shims allow excessive axial movement, reducing clutch pack engagement pressure and causing intermittent slipping during acceleration.
• Metallic grinding noise from the planetary section: A collapsed shim permits metal-on-metal contact between gears and the housing, producing a distinct grinding sound at low RPM.
• Erratic shift timing: Incorrect shim thickness alters the hydraulic balance in the valve body, leading to delayed or harsh shifts that worsen over time.

Technical Specifications

Compatibility

This shim is specifically engineered for the ZF WG150 series, but it also fits the WG180 and WG200 models due to shared planetary carrier dimensions. It is used in both on-highway truck transmissions and off-highway industrial applications. Always verify clearance with a feeler gauge during installation. The shim works in conjunction with the TYPE PLATE for proper identification and the GROOVED STUD for secure mounting. For complete rebuilds, pair this shim with a new SHIFT SYSTEM and COVER PLATE to ensure optimal performance.

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