ZF 4044.301.114 WASHER | OEM Genuine Part

Overview

The ZF 4044.301.114 WASHER is an OEM genuine thrust washer engineered to maintain precise axial clearance within ZF heavy-duty powershift transmissions. Positioned between rotating gear sets and stationary housings, this hardened steel component prevents metal-to-metal contact that would otherwise accelerate wear. The SKU 4044.301.114 is a critical shimming element in the clutch pack assembly, ensuring proper preload for consistent hydraulic pressure distribution. When paired with the 4143101009 HOUSING and the 4143301025 HOUSING, this washer stabilizes the planetary gear carrier, directly influencing torque transfer efficiency in construction machinery drivelines.

Symptoms of Failure

• Intermittent gear slipping under load — A worn 4044.301.114 washer allows excessive axial play, causing clutch packs to lose hydraulic grip during excavation or grading operations.
• Metallic debris in transmission oil — As the washer surface degrades, fine steel particles contaminate the lubricant, often detected during routine oil analysis or when draining the sump.
• Low-frequency rumbling from the transmission housing — Increased clearance between rotating and stationary components generates a distinct growl, particularly noticeable at idle or during deceleration.
• Erratic shift timing — Axial movement alters clutch piston stroke, leading to delayed or harsh engagements that trigger diagnostic trouble codes in electronic control units.

Technical Specifications

Compatibility

This washer is dimensionally validated for ZF WG180, WG200, and WG210 powershift transmissions commonly installed in wheel loaders, dozers, and telehandlers. It also fits select variants of the ZF 4WG-310 series used in medium-duty construction machinery. For correct installation, always replace the 0634313603 O-RING and the 4475280018 SCREW PLUG simultaneously to prevent fluid bypass around the washer seat.

Related Components