Overview
The ZF 4657.183.307 LOOSE PARTS for WG210 is a critical service kit designed for the internal valve body and clutch pack assembly of the WG 210 series transmission. This OEM genuine part, identified by SKU 4657.183.307, includes the necessary loose components—such as seals, springs, and retaining rings—that ensure precise hydraulic pressure control and smooth gear engagement. It sits directly within the main control unit of the transmission, acting as a wear-item refresh kit to restore factory tolerances. When replacing this kit, it is common to also inspect the 4657101080: TRANSMISSION HOUSING for cracks or warping, as the housing provides the structural foundation for these loose parts.
Symptoms of Failure
- Delayed or harsh shifting: Worn loose parts cause erratic clutch pack engagement, leading to noticeable lag or jarring shifts during acceleration.
- Internal hydraulic leaks: Degraded seals within the 4657.183.307 kit allow transmission fluid to bypass, resulting in low line pressure and eventual gear slippage.
- Erratic neutral-to-drive engagement: A failing kit often produces a delayed or incomplete engagement when shifting from park to drive, especially under load.
- Contaminated fluid with metallic debris: As these loose parts wear, small metal particles can circulate, accelerating damage to the 4657201167: HOUS.FRONT SECT and adjacent valve body components.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number | 4657.183.307 |
| OEM Reference | ZF WG210 Series |
| Material Composition | Hardened steel, nitrile rubber, aluminum alloy |
| Weight (approx.) | 0.85 kg (1.87 lbs) |
| Dimensions (L x W x H) | 120 mm x 80 mm x 45 mm |
| Compatible Fasteners | 0636100801: CAP SCREW, 0636100803: CAP SCREW |
| Associated Hardware | 0631306816: CYLINDRICAL PIN, 4656301148: FIXING PLATE |
Compatibility
This loose parts kit is engineered for the ZF WG210 series, but it also fits select variants of the WG180, WG200, and WG250 models where the internal valve body geometry matches. It is not backward-compatible with older WG120 or WG150 units without modification. For proper installation, always verify the condition of the 4657201171: HOUSING REAR PART and the 4657298103: HOUSING REAR SECTION, as these housings must be free of scoring to ensure a proper seal with the new loose parts.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101080 | TRANSMISSION HOUSING | Main structural casing for gear train |
| 4657201167 | HOUS.FRONT SECT | Front section housing for pump and converter |
| 4657201171 | HOUSING REAR PART | Rear housing supporting output shaft |
| 4657298103 | HOUSING REAR SECTION | Extended rear section for planetary gears |
| 0631306816 | CYLINDRICAL PIN | Alignment pin for housing mating surfaces |
| 0636100801 | CAP SCREW | M10 fastener for valve body attachment |
| 4656301148 | FIXING PLATE | Retainer plate for clutch pack assembly |
| 4657301034 | SCREEN SHEET | Fine mesh filter for hydraulic circuit |
| 4657301035 | SCREEN SHEET | Coarse mesh filter for sump return line |
| 0636100803 | CAP SCREW | M8 fastener for housing cover |
Authorized ZF Distributor
We are a certified supplier of genuine ZF components.
