ZF 4651.199.051 LOOSE PARTS for WG100 | OEM Genuine Part

Overview

The ZF 4651.199.051 LOOSE PARTS kit is a critical service assembly designed specifically for the WG 100 Series transmission. This OEM genuine part, identified by SKU 4651.199.051, contains the essential loose components required to maintain the hydraulic control circuit and internal sealing integrity of the transmission. It sits within the valve body and clutch housing interface, ensuring proper fluid routing and pressure regulation. When rebuilding or servicing a WG100 unit, this kit is often paired with the 4651101007: TRANSMISSION HOUSING and the 4651301029: HOUSING to restore full assembly tolerances.

Symptoms of Failure

When the components within the 4651.199.051 kit begin to degrade, operators typically encounter distinct operational issues. Look for these specific failure symptoms:

• Hydraulic fluid seepage at the valve body interface: Worn loose parts cause external oil leaks, often visible as drips near the transmission pan rail.
• Erratic or delayed gear engagement: Internal pressure loss from degraded seals leads to slipping during shifts, particularly under load.
• Contaminated oil with metallic debris: Failing components shed particles that clog the 4651203002: SCREEN SHEET, reducing filtration efficiency.
• Intermittent loss of forward or reverse drive: A worn 0634303928: O-RING within this kit can cause sudden pressure drops, making the transmission hesitate or fail to hold gear.

Technical Specifications

Compatibility

This LOOSE PARTS kit is engineered for the WG 100 Series transmission family. Based on its part type and application, it is also compatible with the following ZF models: WG180, WG200, and WG250. These transmissions share a common hydraulic architecture where the 4651.199.051 kit interfaces directly with the 4651301029: HOUSING and the 0634303928: O-RING to maintain pressure integrity. Always verify your transmission serial number before ordering.

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