ZF 2049.309.507 SHIM | OEM Genuine Part

Overview

The ZF 2049.309.507 SHIM is a precision-engineered adjustment component designed for use within ZF heavy-duty powershift transmissions. This OEM genuine part, identified by SKU 2049.309.507, is critical for establishing the correct axial clearance between rotating assemblies and stationary housings. Typically positioned between the bearing race and the transmission casing, this shim compensates for manufacturing tolerances, ensuring that gear clusters and shafts maintain their precise alignment under extreme loads. In construction machinery applications, the 2049.309.507 SHIM prevents metal-to-metal contact, reducing friction and extending the service life of adjacent components such as the 2094101012: TRANSMISSION HOUSING and the 2094301036: HOUSING.

Symptoms of Failure

When the ZF 2049.309.507 SHIM becomes worn, crushed, or corroded, the transmission’s internal clearances become compromised. Operators may notice the following specific failure symptoms:

• Excessive gear backlash and clunking noises – A worn shim allows the shaft to drift axially, causing a distinct metallic clatter during direction changes or load shifts.
• Low-frequency vibration at idle – Incorrect shim thickness leads to uneven bearing preload, transmitting vibration through the 2094298057: HOUSING and into the chassis.
• Premature bearing failure – Without proper shim support, bearings experience uneven load distribution, leading to spalling and eventual seizure.
• Oil contamination from metal debris – As the shim degrades, microscopic steel particles enter the lubrication circuit, accelerating wear on seals and the 2094301071: COVER.

Technical Specifications

Compatibility

This shim is a factory-specified component for several ZF powershift transmission families commonly found in wheel loaders, graders, and telehandlers. It is directly compatible with the following transmission models:

• ZF WG180 series (WG180, WG180C)
• ZF WG200 series (WG200, WG200C)
• ZF 4WG-200 series
• ZF 6WG-250 series (select applications)

Always verify the shim stack height during reassembly. For complete transmission rebuilds, pairing this shim with a new 0750111371: SHAFT SEAL and 0634303085: O-RING is recommended to prevent fluid bypass.

Related Components

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