ZF 1211.304.092 SHIM for WG150 | OEM Genuine Part

Overview

The ZF 1211.304.092 SHIM is a precision-engineered adjustment component designed for the WG 150 Series transmission. This OEM genuine part functions as a critical spacer within the planetary gearset assembly, ensuring correct axial clearance and load distribution between rotating elements. The SKU 1211.304.092 is manufactured to exact ZF tolerances, preventing metal-to-metal contact that can lead to premature gear wear. It is typically installed during rebuilds or when replacing the TRANSMISSION HOUSING or TRANSMISSION HOUSING to maintain proper end-play specifications.

Symptoms of Failure

• Excessive axial play in the output shaft – When the shim wears or compresses beyond tolerance, noticeable fore-aft movement occurs in the driveline, often felt as a clunk during acceleration or deceleration.
• Low-frequency gear whine under load – A worn 1211.304.092 shim allows gear teeth to misalign, producing a distinct humming or whining noise that intensifies during highway cruising.
• Intermittent oil pressure fluctuations – Incorrect shim thickness alters the clearance for lubrication passages, causing erratic pressure readings on the transmission gauge and potential clutch slippage.
• Metal debris in the oil pan – As the shim deteriorates, fine metallic particles appear in the fluid, signaling contact between the housing and rotating assembly.

Technical Specifications

Compatibility

This shim is primarily validated for the WG 150 Series transmissions. It also fits select models in the WG 180 and WG 200 series where the planetary carrier and housing dimensions match. Always verify clearance requirements when retrofitting. The part is commonly used alongside the TYPE PLATE for identification and the GROOVED STUD for secure mounting of the housing assembly.

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