Overview
The ZF 4139.330.111 CONNECTING PART is a critical OEM genuine component engineered for the WG 150 Series transmission. This part functions as the mechanical linkage between the shift system and the valve body assembly, ensuring precise hydraulic control and smooth gear engagement. As an original ZF-manufactured element, the SKU 4139.330.111 guarantees exact fitment and material integrity, directly influencing the transmission’s operational reliability. It is installed within the lower housing section, adjacent to the 4642101109: TRANSMISSION HOUSING and the 4642301205: TRANSMISSION HOUSING, forming a sealed assembly that directs oil flow to the clutch packs.
Symptoms of Failure
When the ZF 4139.330.111 CONNECTING PART deteriorates, operators often notice specific performance degradation. Delayed or harsh gear engagement occurs when the linkage loses dimensional tolerance, preventing proper valve actuation. Intermittent loss of forward or reverse drive is a common complaint, particularly under load, as the part fails to maintain consistent hydraulic pressure. Transmission fluid contamination from metal shavings may appear in the oil pan if the connecting part fractures internally. Additionally, erratic shift patterns during acceleration or deceleration indicate wear in the pivot points, often misdiagnosed as electronic faults.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 4139.330.111 |
| Material | Hardened alloy steel with zinc-nickel coating |
| Overall Length | 142 mm ± 0.5 mm |
| Weight | 0.38 kg |
| OEM Reference | ZF 4139.330.111 (Genuine) |
| Surface Finish | Ground and polished contact surfaces |
| Operating Temperature Range | -40°C to +120°C |
Compatibility
This connecting part is primarily designed for the ZF WG 150 Series transmission family, including models such as WG150, WG151, and WG152. It is also compatible with the WG180 and WG200 series when used in conjunction with the correct 0730365125: TYPE PLATE for identification. The part interfaces directly with the 0631311009: GROOVED STUD to secure the linkage within the housing. For heavy-duty applications in WG180 and WG200 variants, verify the shift system configuration using the 4644106300: SHIFT SYSTEM assembly.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4642101109 | TRANSMISSION HOUSING | Main structural casing for gear train |
| 4642301205 | TRANSMISSION HOUSING | Secondary housing for valve body section |
| 0730365125 | TYPE PLATE | Identification tag for transmission model |
| 0631311009 | GROOVED STUD | Fastener for connecting part alignment |
| 4642301168 | SCREEN SHEET | Oil filtration mesh for hydraulic circuit |
| 4642301169 | SCREEN SHEET | Fine filtration element for valve body |
| 0636100621 | HEXAGON SCREW | Mounting bolt for housing sections |
| 4642301186 | SCREEN SHEET | High-flow filter for clutch lubrication |
| 4644106300 | SHIFT SYSTEM | Complete shift mechanism assembly |
| 4644306500 | COVER PLATE | Sealing plate for shift system access |
