ZF 1232.304.062 SHIM for WG150 | OEM Genuine Part

Overview

The ZF 1232.304.062 SHIM is a precision-engineered adjustment component specifically designed for the WG 150 series of heavy-duty transmissions. This OEM genuine part, identified by SKU 1232.304.062, functions as a critical spacer to establish correct axial clearance between the planetary gear sets and the transmission housing. By maintaining exact tolerances, this shim prevents unwanted gear movement and ensures optimal load distribution across the drivetrain. It is typically installed during assembly or rebuild procedures to fine-tune the end-play of rotating assemblies, directly influencing the longevity and shift quality of the transmission.

Symptoms of Failure

When the ZF 1232.304.062 SHIM wears or is improperly installed, specific mechanical issues arise. Look for these failure indicators:

• Excessive axial play in the output shaft: A worn shim allows the gear train to shift laterally, causing a noticeable clunking noise during acceleration or deceleration.
• Premature bearing failure: Incorrect shim thickness leads to improper preload, generating heat and metal debris in the oil pan.
• Intermittent gear slipping under load: When clearance is too great, planetary gears lose engagement, resulting in momentary power loss during uphill climbs or heavy hauling.
• Oil leaks near the transmission housing joint: A degraded shim can distort the seal surface, allowing fluid to weep past the TRANSMISSION HOUSING interface.

Technical Specifications

Compatibility

This shim is engineered for the ZF WG 150 series but is also utilized in closely related transmission models that share the same planetary carrier architecture. Compatible models include the WG 150, WG 151, WG 152, WG 180, and WG 200 series. It is frequently paired with the TRANSMISSION HOUSING for the WG 150 and the TYPE PLATE for correct identification during rebuilds. Always verify the shim stack height using a GROOVED STUD to ensure proper torque specifications are met.

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