ZF 0899.317.860 PIN for WG100 | OEM Genuine Part

Overview

The ZF 0899.317.860 PIN for WG100 is a precision-engineered locating and pivot pin designed for the internal shift mechanism of ZF’s WG series transmissions. This OEM genuine part, identified by SKU 0899.317.860, sits within the valve body or clutch housing assembly, acting as a critical alignment dowel for actuating levers and selector forks. By ensuring precise mechanical registration, this pin prevents lateral play in the shift linkage, directly influencing gear engagement accuracy. When installed alongside a new 4651101014: TRANSMISSION HOUSING, the pin maintains the structural integrity required for high-torque industrial applications.

Symptoms of Failure

When the 0899.317.860 pin wears or shears, operators typically encounter these specific failure modes:

• Erratic gear engagement or “ghost shifting”: A worn pin allows the shift fork to drift, causing the transmission to jump out of gear under load.
• Metallic rattling from the bell housing: Loose pin movement creates a distinct tapping noise during idle or deceleration.
• Delayed or incomplete clutch pack actuation: Misalignment from a damaged pin prevents full pressure plate travel, leading to clutch slip.
• Oil contamination from internal wear debris: Sheared pin fragments circulate through the system, often clogging the 4651203002: SCREEN SHEET.

Technical Specifications

Compatibility

This pin is engineered for the WG 100 Series transmission family, specifically the WG100, WG120, and WG150 models used in medium-duty trucks and construction equipment. It also cross-fits select WG180 and WG200 variants that share the same shift rail architecture. For proper sealing, always pair this pin with a new 0634303928: O-RING and verify the 4651301029: HOUSING bore is free of burrs. In high-mileage rebuilds, inspect the 4651301036: TRANSMISSION HOUSING for elongation around the pin bore.

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