ZF 4699.801.269 GK10LD | OEM Genuine Part

Overview

The ZF 4699.801.269 GK10LD is a precision-engineered OEM genuine gear kit designed for the upper power take-off (PTO) assembly in heavy-duty construction machinery transmissions. This SKU 4699.801.269 serves as the primary reduction gear set, transferring torque from the input shaft to the output hub within the GK10LD transfer case. It is a critical wear component that ensures smooth engagement and load distribution in ZF drivetrains used in wheel loaders, graders, and telehandlers. When installed alongside the 4699001191: GK10LD assembly, this gear set maintains precise gear mesh and prevents premature bearing failure.

Symptoms of Failure

• Whining or howling noise during PTO engagement — Worn gear teeth on the 4699.801.269 produce a distinct high-pitched sound under load, often misdiagnosed as bearing noise.
• Intermittent gear slipping under heavy load — As the gear profile wears, the transmission may momentarily lose torque transfer, especially when operating in reverse or during cold starts.
• Metal particles in transmission oil — Flaking or pitting on the gear surface contaminates the hydraulic system, requiring immediate inspection of the 4699101108: HOUSING for debris damage.
• Hard shifting or delayed engagement — Excessive backlash from a worn GK10LD gear set causes the 4699102172: INPUT shaft to bind, leading to operator complaints about sluggish response.

Technical Specifications

Compatibility

This gear set is engineered for ZF WG180, WG200, and WG310 series transmissions commonly found in construction machinery. It directly replaces the original equipment gear in the GK10LD transfer case module. The 4699.801.269 interfaces with the 4699103058: OUTPUT shaft and requires proper shimming to maintain 0.10-0.15 mm backlash. Always inspect the 0630513065: SNAP RING and 0634306309: O-RING during installation to prevent oil bypass.

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