ZF 0730.001.512 SHIM for WG250 | OEM Genuine Part

Overview

The ZF 0730.001.512 SHIM is a precision-engineered adjustment component designed specifically for the WG250 series transmission. This OEM genuine part serves as a critical spacer within the planetary gearset assembly, ensuring correct axial clearance between rotating and stationary elements. By maintaining precise end-play tolerances, the 0730.001.512 shim prevents metal-to-metal contact that would otherwise lead to premature wear. This shim is installed directly between the TRANSMISSION HOUSING and the HOUSING components, where it compensates for manufacturing tolerances and thermal expansion. The SKU 0730.001.512 is laser-etched for traceability, guaranteeing it meets ZF’s stringent OEM specifications for hardness and flatness.

Symptoms of Failure

• Excessive axial play in the output shaft – When the 0730.001.512 shim wears or deforms, operators may notice a distinct clunking sensation during gear engagement, particularly under load. This indicates the clearance between the COVER and the gearset has exceeded factory limits.
• Low-frequency vibration at cruising speeds – A worn shim allows the planetary carrier to shift laterally, creating harmonic vibrations that transmit through the driveline. This symptom often worsens as transmission oil temperature rises.
• Intermittent gear slippage under torque – When axial clearance becomes excessive, the clutch packs may not fully engage, causing momentary power loss during acceleration. This is frequently misdiagnosed as a valve body issue.
• Metallic debris in the oil pan – Advanced shim failure results in fretting wear between the HEXAGON SCREW heads and the housing face, producing fine steel particles visible during routine oil changes.

Technical Specifications

Compatibility

This shim is engineered for the ZF WG250 series transmission, commonly found in medium-duty trucks, buses, and off-highway equipment. Based on its dimensional profile and application within the planetary carrier stack, the 0730.001.512 is also compatible with the following ZF models: WG180, WG200, WG210, and WG240. It is not recommended for use in WG150 or WG300 series units due to differing housing bore diameters. Always verify clearance using a dial indicator after installation.

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