ZF 5838.300.047 ADJUSTMENT PLATE | OEM Genuine Part

Overview

The ZF 5838.300.047 ADJUSTMENT PLATE is a precision-machined OEM genuine component designed to maintain critical clearances within the differential assembly of heavy-duty construction machinery transmissions. This shim-like plate sits between the differential housing and the axle bevel gear, allowing technicians to set the correct preload and backlash for optimal gear mesh. The SKU 5838.300.047 is engineered from high-strength steel to withstand the extreme axial loads and vibration common in wheel loaders, graders, and dozers. When installed alongside a 5838109012: DIFFERENTIAL and the 5838300626: DIFFERENTIAL HOUSING, this adjustment plate ensures the entire gear train operates within factory tolerances, preventing premature wear and power loss.

Symptoms of Failure

When the ZF 5838.300.047 adjustment plate wears or becomes deformed, operators will notice distinct performance issues. Excessive differential backlash is the most common symptom, causing a noticeable clunk when shifting between forward and reverse. Uneven tire wear on drive axles often follows, as the misaligned bevel gear forces the differential to distribute torque unevenly. Low-frequency whining or howling from the axle housing during turns indicates the adjustment plate has lost its ability to maintain proper gear contact patterns. In severe cases, metal debris in the transmission oil filter signals that the plate has worn through its hardened surface, requiring immediate replacement to avoid catastrophic damage to the 2093209023: DIFFERENTIAL.

Technical Specifications

Compatibility

This adjustment plate is a factory-fit component for ZF’s WG series powershift transmissions commonly used in construction machinery. It is directly compatible with the ZF WG180, WG200, and WG211 transmission models. The part also serves the ZF 4WG-200 and 4WG-210 series, which are found in articulated dump trucks and large wheel loaders. For proper installation, always pair this plate with a new 0750117075: TAPER ROLLER BEARING to ensure the differential pinion shaft is correctly supported during adjustment.

Related Components

Frequently Asked Questions

Q: Can I reuse the ZF 5838.300.047 adjustment plate during a differential rebuild?
A: No. This is a single-use precision shim. Once compressed during initial assembly, its thickness changes. Always install a new OEM plate to maintain factory backlash specifications.

Q: How do I know if my WG200 transmission needs this adjustment plate?
A: If you measure more than 0.30 mm of axial play on the differential bevel gear, or if the gear contact pattern shows heel contact, the plate has worn beyond tolerance and must be replaced.

Q: Is the 5838.300.047 the same as a standard washer?
A: No. Unlike a standard thrust washer, this adjustment plate is manufactured to a precise thickness tolerance of ±0.02 mm and is case-hardened to resist deformation under high clamping loads.