Overview
The ZF 4657.199.044 LOOSE PARTS for WG210 is a critical service kit designed to restore the internal integrity of your ZF WG 210 Series transmission. This OEM genuine part set includes the essential fasteners, seals, and positioning components required during a major overhaul or when replacing the main transmission housing. Specifically, the 4657.199.044 kit ensures that the TRANSMISSION HOUSING is correctly aligned and sealed against the HOUS.FRONT SECT and the HOUSING REAR PART. Without this specific SKU, the precision fit of the gear train and hydraulic circuits cannot be guaranteed, leading to premature wear.
Symptoms of Failure
When the components within the 4657.199.044 kit degrade or are missing, operators often experience the following distinct failure modes:
- External oil seepage at the housing split lines: Worn gaskets or loose fasteners from this kit cause fluid to weep between the HOUS.FRONT SECT and the main case, leaving visible drips on the bell housing.
- Intermittent gear slippage under load: A missing or damaged CYLINDRICAL PIN from this set allows the housing sections to shift microscopically, disrupting clutch pack engagement and causing delayed or slipping shifts.
- Abnormal vibration or driveline noise: If the locating pins and bolts in this loose parts kit are not torqued correctly, the TRANSMISSION HOUSING can flex, creating a low-frequency rumble that worsens with speed.
- Contaminated transmission fluid: A compromised seal from this kit allows debris to enter the HOUSING REAR PART cavity, leading to sludge buildup and filter blockage.
Technical Specifications
| Specification | Value |
|---|---|
| OEM Part Number | 4657.199.044 |
| Kit Contents | Bolts, Dowels, Seals, Gaskets |
| Material Composition | Steel (fasteners), Nitrile Rubber (seals) |
| Weight (approx.) | 0.45 kg (1.0 lb) |
| Primary Application | WG 210 Series |
| Related Fastener | CAP SCREW (0636100801) |
| Related Plate | FIXING PLATE (4656301148) |
| Related Screen | SCREEN SHEET (4657301032) |
| Related Screen | SCREEN SHEET (4657301033) |
| Related Fastener | CAP SCREW (0636100803) |
| Related Feed Housing | OIL FEED.HOUSG. (4656301048) |
Compatibility
This ZF 4657.199.044 LOOSE PARTS kit is engineered specifically for the WG 210 transmission series. However, due to shared architecture, it is also compatible with the WG 180 and WG 200 series when performing a full housing rebuild. The kit interfaces directly with the HOUSING REAR PART and the HOUS.FRONT SECT across these models. Always verify your transmission’s serial number against the OEM parts list, as the CYLINDRICAL PIN length may vary slightly between the WG 200 and WG 210 variants.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101037 | TRANSMISSION HOUSING | Main structural case for gear assembly |
| 4657201027 | HOUS.FRONT SECT | Front section housing for pump and converter |
| 4657201012 | HOUSING REAR PART | Rear section housing for output shaft |
| 0631306792 | CYLINDRICAL PIN | Alignment dowel for housing sections |
| 0636100801 | CAP SCREW | Fastener for housing attachment |
| 4656301148 | FIXING PLATE | Retaining plate for internal components |
| 4657301032 | SCREEN SHEET | Filter screen for oil circuit |
| 4657301033 | SCREEN SHEET | Secondary filter screen |
| 0636100803 | CAP SCREW | Fastener for valve body or cover |
| 4656301048 | OIL FEED.HOUSG. | Housing for oil feed passages |
