ZF 4651.199.052 LOOSE PARTS for WG100 | OEM Genuine Part

Overview

The ZF 4651.199.052 LOOSE PARTS set is a critical OEM genuine service kit engineered specifically for the WG 100 series transmission. This assembly consolidates essential wear components that maintain hydraulic integrity and mechanical alignment within the gear train. The SKU 4651.199.052 functions as a targeted repair solution, addressing the small yet vital elements that connect the TRANSMISSION HOUSING to the internal valve body and clutch packs. Without this loose parts kit, the transmission cannot sustain proper oil pressure or shift timing, making it indispensable for any WG100 overhaul.

Symptoms of Failure

When the components within the 4651.199.052 kit degrade, operators typically notice three distinct failure modes. First, intermittent gear slipping under load occurs as internal seals lose their ability to hold line pressure. Second, external oil seepage around the housing mating surfaces becomes visible, often traced back to degraded O-rings and sealing caps. Third, erratic shift engagement—particularly when transitioning from neutral to drive—indicates that the loose parts are no longer providing stable hydraulic feedback. These symptoms frequently appear alongside wear in the HOUSING assembly, where accumulated debris accelerates seal failure.

Technical Specifications

Compatibility

This loose parts kit is primarily designed for the WG 100 series, but its application extends to several ZF models sharing the same hydraulic architecture. Compatible transmissions include the WG 120, WG 150, WG 180, and WG 200 series, provided they utilize the same valve body interface. The kit integrates directly with the HOUSING component and requires a fresh O-RING during installation to guarantee a leak-free seal. Always verify your transmission’s serial number against ZF’s compatibility chart before ordering.

Related Components