Overview
The ZF 0736.300.143 TORX SCREW is a critical fastening component engineered specifically for the WG92 and WG98 series transmissions. This OEM genuine part secures the valve body and internal hydraulic control assemblies within the transmission housing, ensuring precise alignment under high-torque conditions. The SKU 0736.300.143 replaces worn or stripped fasteners that can compromise fluid pressure integrity. When installed correctly, this screw works in concert with the TRANSMISSION HOUSING and the HOUSING II to maintain structural rigidity during gear shifts.
Symptoms of Failure
- Transmission fluid seepage at valve body joints – A loose or fatigued TORX screw allows hydraulic fluid to escape, often visible as wet spots around the pan gasket area.
- Intermittent gear slippage under load – When the screw loses clamping force, valve body movement causes pressure drops, leading to delayed engagement or slipping in forward gears.
- Audible rattling from the transmission pan – A broken or missing 0736.300.143 screw permits internal components to vibrate against the housing, producing a metallic chatter during idle.
- Erratic shift timing – Worn threads prevent proper torque retention, altering the hydraulic circuit timing and causing harsh or delayed shifts.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number | 0736.300.143 |
| Head Type | TORX (internal drive) |
| Thread Size | M8 x 1.25 |
| Overall Length | 25 mm |
| Material | High-tensile steel, zinc-plated |
| Weight | 12 g |
| OEM Reference | ZF 0736.300.143 |
Compatibility
This TORX screw is a direct fit for ZF WG92 and WG98 series transmissions, including models such as the WG180, WG200, and WG210. It is also used in select WG120 variants where the valve body requires M8 fasteners. The part integrates with the CYLINDRICAL PIN for alignment and the TYPE PLATE for identification. Always verify thread pitch before installation to avoid cross-threading in the housing.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4660101017 | TRANSMISSION HOUSING | Main structural casing for gear sets |
| 4660301054 | HOUSING II | Secondary housing for clutch packs |
| 0631306174 | CYLINDRICAL PIN | Alignment dowel for valve body positioning |
| 0769123894 | TYPE PLATE | Identification tag for transmission model |
| 0750100022 | SCREW PLUG | Seals hydraulic test ports |
| 4660221029 | SUCTION TUBE | Oil pickup from pan to pump |
| 0634100317 | O-RING | Seals suction tube connection |
| 0636103273 | CAP SCREW | Secures oil filter bracket |
| 0634306311 | O-RING | Seals cap screw interface |
| 4660321029 | FIXING PLATE | Retains solenoid harness |
