Overview
The ZF 0732.041.240 COMPRESSION SPRING is a critical OEM genuine component engineered for the WG150, WG180, and WG200 series transmissions. This precision spring is installed within the valve body or clutch pack assembly, where it provides the necessary preload force to maintain consistent hydraulic pressure and ensure smooth gear engagement. The SKU 0732.041.240 is designed to exact ZF factory tolerances, making it a direct replacement for worn or fatigued springs. When paired with a robust TRANSMISSION HOUSING or a TRANSMISSION HOUSING, this spring helps maintain structural integrity under heavy load conditions.
Symptoms of Failure
- Delayed or harsh shifting: A fatigued compression spring can cause erratic clutch pack engagement, leading to noticeable jerks or hesitation when changing gears.
- Intermittent gear slipping: When the spring loses its tension, hydraulic pressure drops, resulting in temporary loss of power transfer during acceleration.
- Unusual transmission noise: A broken or weakened spring may produce a metallic rattling or clicking sound from the valve body area, especially at low speeds.
- Oil leaks near the valve body: Improper spring force can cause seals to shift, allowing ATF to escape past the SEALING CAP or adjacent gaskets.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number (SKU) | 0732.041.240 |
| Material | High-tensile spring steel (DIN 17223) |
| Wire Diameter | 2.5 mm (estimated) |
| Outer Diameter | 18.0 mm (estimated) |
| Free Length | 45.0 mm (estimated) |
| Weight | ~12 grams |
| OEM Reference | ZF 0732.041.240 |
| Surface Treatment | Zinc-plated, corrosion resistant |
Compatibility
This compression spring is a direct fit for ZF WG150, WG180, and WG200 series transmissions used in industrial vehicles, construction equipment, and heavy-duty trucks. It is commonly found in the valve body assembly where it works in conjunction with the GROOVED STUD and the TYPE PLATE to ensure correct assembly orientation. Always verify your transmission model suffix before installation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4642101108 | TRANSMISSION HOUSING | Encloses and protects internal gear sets |
| 4642301208 | TRANSMISSION HOUSING | Alternative housing for WG180 series |
| 0730365125 | TYPE PLATE | Identification plate for transmission model |
| 0631311009 | GROOVED STUD | Locating pin for valve body alignment |
| 4642301168 | SCREEN SHEET | Filter mesh for hydraulic fluid |
| 4642301169 | SCREEN SHEET | Alternative filter screen variant |
| 0636100621 | HEXAGON SCREW | Fastener for housing assembly |
| 0630361029 | SEALING CAP | Prevents fluid leakage from ports |
| 4642306254 | ADAPTER | Connects transmission to driveline |
| 0634303340 | O-RING | Seals hydraulic connections |
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