Overview
The ZF 0501.206.877 FILTER HEAD is a critical hydraulic component designed for the WG110, WG150, and WG200 series transmissions. This OEM genuine part serves as the mounting interface and fluid distribution hub for the transmission oil filter, ensuring that hydraulic fluid is properly directed through the filtration media before returning to the valve body and torque converter. The SKU 0501.206.877 is precision-machined to maintain consistent oil pressure and flow, directly supporting the longevity of adjacent assemblies such as the TRANSMISSION HOUSING and the TRANSMISSION HOUSING in heavy-duty applications. Without a properly sealed filter head, contaminants bypass filtration, leading to accelerated wear on internal components.
Symptoms of Failure
When the ZF 0501.206.877 filter head degrades, operators typically encounter these specific failure modes:
- External oil leaks at the filter mounting base – Cracks or warping in the filter head casting allow pressurized transmission fluid to escape, often pooling under the vehicle or dripping from the bell housing.
- Erratic gear engagement or slipping – A compromised filter head disrupts hydraulic pressure regulation, causing delayed shifts or clutch pack slippage during load changes.
- Contaminated oil recirculation – If the internal bypass valve or sealing surface fails, unfiltered oil bypasses the filter element, leading to premature wear on the SHIFT SYSTEM and valve body.
- Overheating transmission fluid – Restricted flow through a damaged filter head reduces cooling circuit efficiency, raising sump temperatures above safe operating limits.
Technical Specifications
| Parameter | Specification |
|---|---|
| OEM Part Number | 0501.206.877 |
| Material | Die-cast aluminum alloy (A380) |
| Weight | 0.85 kg (1.87 lbs) |
| Overall Dimensions | 120 mm x 85 mm x 65 mm |
| Mounting Bolt Pattern | 4-hole, M8 x 1.25, 92 mm spacing |
| Seal Type | Integrated O-ring groove (O-ring sold separately) |
| Max Operating Pressure | 18 bar (261 psi) |
| Temperature Range | -40°C to +120°C |
Compatibility
This genuine ZF filter head is engineered for direct fitment on the following transmission model series: WG 110 Series, WG 150 Series, WG 200 Series, WG 201 Series, and WG 210 Series. It is commonly found in ZF Ecomat and Ecolife variants used in municipal buses, refuse trucks, and construction equipment. The part interfaces with the TYPE PLATE for identification and is secured using the GROOVED STUD to ensure vibration-resistant mounting. Always verify your transmission model code against the OEM parts catalog before installation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4642101109 | TRANSMISSION HOUSING | Main structural casing for gear train and valve body |
| 4642301205 | TRANSMISSION HOUSING | Secondary housing for clutch packs and oil pump |
| 0730365125 | TYPE PLATE | Identification plate with transmission serial number |
| 0631311009 | GROOVED STUD | Fastening stud for filter head and housing alignment |
| 4642301168 | SCREEN SHEET | Fine mesh filter screen for hydraulic circuit |
| 4642301169 | SCREEN SHEET | Coarse mesh pre-filter for oil return line |
| 0636100621 | HEXAGON SCREW | M8 hex bolt for securing filter head assembly |
| 4642301186 | SCREEN SHEET | Replacement screen for WG200 series oil filter |
| 4644106324 | SHIFT SYSTEM | Electro-hydraulic shift control module |
| 4644306598 | PLATE | Clutch pack backing plate for torque retention |
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