Overview
The ZF 0732.042.808 COMPRESSION SPRING is a critical OEM genuine component engineered for the WG200, WG92, and WG98 series transmissions. This precision spring provides the necessary preload and tension within the valve body or clutch pack assembly, ensuring consistent hydraulic pressure regulation and smooth gear engagement. The SKU 0732.042.808 is manufactured to exact ZF tolerances, directly replacing worn factory springs to restore original shift quality. When installed alongside the 4660198001 PERIPHERALS kit, this spring maintains the structural integrity of the transmission’s internal control circuits.
Symptoms of Failure
- Delayed or harsh gear engagement: A fatigued compression spring reduces hydraulic force, causing noticeable lag when shifting from Neutral to Drive or Reverse.
- Erratic shift patterns under load: Worn springs allow pressure fluctuations, leading to slipping or hunting between gears during acceleration.
- Internal rattling or buzzing noises: A broken or weakened spring can vibrate inside the valve body, producing audible metallic sounds at idle.
- Oil contamination from debris: Fractured spring fragments circulate through the system, often requiring replacement of the 4660101011 TRANSMISSION HOUSING to remove metal particles.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 0732.042.808 |
| Material | Chrome-silicon alloy steel (DIN 17223) |
| Wire Diameter | 2.5 mm |
| Outer Diameter | 18.0 mm |
| Free Length | 45.0 mm |
| Total Coils | 8.5 |
| Weight | 0.012 kg |
| OEM Reference | ZF 0732.042.808 |
Compatibility
This compression spring is designed for ZF WG series transmissions, specifically the WG180, WG200, WG92, and WG98 models. It fits valve body assemblies and clutch piston return mechanisms in both on-highway and off-highway applications. For complete rebuilds, pair this spring with the 0501209818 RANGE SELECTOR to ensure proper shift rail alignment, and verify the 4660301018 HOUSING is free of scoring before installation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4660198001 | PERIPHERALS | External control module assembly |
| 0501209818 | RANGE SELECTOR | Shift rail positioning mechanism |
| 4660101011 | TRANSMISSION HOUSING | Main structural casing |
| 4660301018 | HOUSING | Internal valve body enclosure |
| 0631306174 | CYLINDRICAL PIN | Alignment dowel for spring seats |
| 0769123894 | TYPE PLATE | Identification tag for transmission series |
| 4660221012 | SUCTION TUBE | Oil intake conduit |
| 0634100317 | O-RING | Hydraulic seal for spring cavity |
| 0636103273 | CAP SCREW | Fastener for valve body retention |
| 0750100022 | SCREW PLUG | Port closure for pressure testing |

