ZF 4657.199.054 LOOSE PARTS for WG210 | OEM Genuine Part

Overview

Within the intricate architecture of the ZF WG210 series powershift transmission, the ZF 4657.199.054 LOOSE PARTS kit serves as a critical consolidation of essential hardware required for secure assembly and reliable oil sealing. This OEM genuine part, identified by SKU 4657.199.054, is specifically engineered to replace the collection of fasteners, seals, and locating components that secure the transmission housing sections together. Without this precise kit, maintaining the structural integrity of the gear train and preventing pressurized oil leaks becomes impossible. The kit is designed to interface directly with the main casing assembly, ensuring that the TRANSMISSION HOUSING remains properly mated to the HOUS.FRONT SECT and the HOUSING REAR PART under high torque loads.

Symptoms of Failure

When the components within the 4657.199.054 kit degrade or are lost during service, several distinct operational failures emerge. A primary indicator is external oil seepage at the joint lines between the front and rear housing sections, often mistaken for a gasket failure. Operators may also notice abnormal gear engagement noise or a “clunking” sensation during clutch pack shifts, caused by micro-movement between the housing halves. Another common symptom is intermittent loss of hydraulic pressure, leading to sluggish clutch application, as the CYLINDRICAL PIN (which aligns the housings) wears or shears. Finally, vibration at the bell housing during acceleration can indicate that the loose parts have allowed the main bearing bores to shift out of alignment.

Technical Specifications

Compatibility

This LOOSE PARTS kit is engineered for the ZF WG210 series, but its application extends to several closely related transmission models that share the same housing architecture. It is fully compatible with the WG180, WG200, and WG211 series transmissions. The kit is also suitable for use in the WG120 and WG150 variants where the housing split-line design is identical. Always verify the housing casting number against the TRANSMISSION HOUSING to confirm fitment before installation.

Related Components

Frequently Asked Questions

Q: Can I reuse the old bolts from my WG210 transmission instead of buying this kit?
A: No. ZF specifies that all bolts within the 4657.199.054 kit are torque-to-yield (TTY) fasteners. Reusing them risks bolt fatigue failure, which can lead to catastrophic housing separation and oil starvation.

Q: Does this kit include the gaskets for the housing joint?
A: This particular LOOSE PARTS kit focuses on hardware (bolts, pins, washers). The housing joint typically uses anaerobic sealant rather than a gasket. You will need to apply Loctite 518 or equivalent to the mating surfaces of the HOUS.FRONT SECT and HOUSING REAR PART.

Q: How do I know if the CYLINDRICAL PIN (0631306792) in this kit is the correct size?
A: The pin is precision-ground to 8mm diameter by 20mm length. If your existing pin hole in the TRANSMISSION HOUSING is worn or oversized, you must replace the housing before installing this kit to ensure proper alignment.