ZF 0630.503.008 SNAP RING for WG150 | OEM Genuine Part

Overview

The ZF 0630.503.008 SNAP RING is a critical retaining component engineered specifically for the WG 150 Series transmission. This OEM genuine part secures internal assemblies—such as bearing packs and gear clusters—within the main housing, preventing axial displacement under high torque loads. The SKU 0630.503.008 is precision-machined to fit the WG150’s internal grooves, ensuring that the rotating elements remain correctly positioned during operation. Without this snap ring, the transmission’s structural integrity is compromised, leading to misalignment of adjacent components like the 4642101047: TRANSMISSION HOUSING and the 4642301207: TRANSMISSION HOUSING.

Symptoms of Failure

When the 0630.503.008 snap ring fatigues or breaks, operators will notice distinct failure modes. 1. Internal gear slippage under load—the ring no longer holds the gear stack in place, causing intermittent power loss. 2. Metallic grinding noises from the bell housing—a worn snap ring allows shafts to contact the 0730365067: TYPE PLATE, producing audible wear. 3. Oil leaks near the output flange—axial play from a failed ring distorts seals, leading to fluid seepage. 4. Vibration during gear engagement—the loose assembly creates harmonic imbalance, especially in WG150 units with high mileage.

Technical Specifications

Compatibility

This snap ring is primarily designed for the WG 150 Series transmission, but it also fits select ZF models that share the same internal groove dimensions. Compatible transmissions include the WG 180, WG 200, and early WG 250 variants. It is not interchangeable with the WG 300 or WG 400 series due to larger shaft diameters. Always verify the groove width in your housing; the 0631311009: GROOVED STUD must be correctly torqued to secure the ring during reassembly.

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