ZF 4657.183.374 LOOSE PARTS for WG210 | OEM Genuine Part

Overview

This OEM genuine ZF 4657.183.374 LOOSE PARTS kit is an essential service component for the WG 210 series transmission. Designed as a collection of critical fasteners, seals, and small hardware, this kit ensures that the internal assemblies remain securely torqued and free from contamination. The SKU 4657.183.374 is specifically engineered to replace worn or missing loose parts during a major overhaul or when resealing the transmission housing. It directly interfaces with the main casing and auxiliary housings, providing the necessary hardware to maintain structural integrity and prevent fluid migration between chambers.

Symptoms of Failure

• Transmission fluid seepage at housing joints: When the loose parts in this kit (such as cap screws or sealing washers) degrade, you may notice oil weeping from the seam between the HOUS.FRONT SECT and the main casing.
• Abnormal gear engagement noise: Worn or missing fixing plates and pins can allow slight axial movement of internal components, leading to a distinct clattering sound during gear shifts under load.
• Intermittent pressure loss in the hydraulic circuit: A loose screen sheet or improperly secured housing rear part can cause a drop in line pressure, resulting in delayed shifts or slipping in higher gears.
• Visible debris in the oil pan: If the HOUSING REAR SECTION fasteners become loose, metallic particles from fretting can enter the oil system, accelerating wear on clutches and bearings.

Technical Specifications

Compatibility

This loose parts kit is primarily validated for the ZF WG 210 series transmissions. It is also commonly used as a service part for the WG 180 and WG 200 models, where the housing architecture shares identical bolt patterns and pin locations. The kit is essential when replacing the TRANSMISSION HOUSING or the HOUSING REAR PART. Always verify your transmission serial number to confirm fitment, as variations exist between early and late production units.

Related Components

Frequently Asked Questions

Q: Can I use this 4657.183.374 kit for a ZF WG 180 transmission?
A: Yes, the hardware dimensions are identical across the WG 180, 200, and 210 series for the main housing joints. However, always cross-reference your housing part numbers to confirm.

Q: Does this kit include the screen sheets or fixing plates?
A: No, this is strictly a loose parts kit containing bolts, pins, and washers. The screen sheets (4657301032 and 4657301033) and fixing plate (4656301148) are sold separately as listed in the compatibility table above.

Q: What torque specification should I use for the cap screws in this kit?
A: For the M10 cap screws (0636100801), use 45 Nm. For the M12 cap screws (0636100803), use 75 Nm. Always apply thread locker to bolts securing the housing rear section.