Overview
The ZF 0732.300.244 COMPRESSION SPRING is a precision-engineered component designed for the BP210 and BP230 series transmissions. This OEM genuine part plays a critical role in maintaining consistent hydraulic pressure within the valve body assembly, ensuring smooth clutch engagement and gear shifts. The SKU 0732.300.244 acts as a return spring for specific piston assemblies, absorbing vibration and preventing premature wear on adjacent components. When installed alongside the 4681101002: TRANSMISSION HOUSING, it helps maintain structural integrity under high-torque loads. This spring is manufactured from high-tensile steel to withstand repeated compression cycles without fatigue.
Symptoms of Failure
- Delayed or harsh gear engagement: A worn 0732.300.244 spring can cause sluggish shifts or abrupt clunking when moving from Park to Drive, often described as “ZF transmission hesitation.”
- Intermittent slipping under load: When the compression spring loses tension, hydraulic pressure drops, leading to “BP210 transmission slipping in 3rd gear” or similar long-tail issues.
- Erratic shift patterns: The transmission may hunt between gears or fail to hold a gear on inclines, a classic sign of “ZF BP230 shift flare” caused by insufficient spring force.
- Audible clicking or rattling: A broken or fatigued spring can produce metallic noises from the valve body area, especially during cold starts.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 0732.300.244 |
| Material | High-carbon spring steel (DIN 17223) |
| Wire Diameter | 3.2 mm |
| Outer Diameter | 24.5 mm |
| Free Length | 48.0 mm |
| Compressed Length | 28.5 mm |
| Spring Rate | 12.5 N/mm |
| Weight | 0.018 kg |
| OEM Reference | ZF 0732.300.244 |
Compatibility
This compression spring is engineered for ZF BP210 and BP230 series transmissions, commonly found in medium-duty commercial vehicles and industrial machinery. It is also compatible with the WG180 and WG200 models that share the same valve body architecture. The spring interfaces directly with the 4681201007: HOUS.FRONT SECT and the 4681201008: HOUSING REAR PART, ensuring proper alignment within the clutch pack assembly. For complete rebuilds, pairing this spring with the 4681298001: CASE is recommended to restore factory tolerances.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4681101002 | TRANSMISSION HOUSING | Main structural casing for gear train |
| 4681201007 | HOUS.FRONT SECT | Front section housing pump and torque converter |
| 4681201008 | HOUSING REAR PART | Rear section supporting output shaft |
| 4681298001 | CASE | Complete transmission case assembly |
| 0631306074 | CYLINDRICAL PIN | Alignment pin for housing mating surfaces |
| 0636100801 | CAP SCREW | Fastener for valve body retention |
| 4681301015 | FIXING PLATE | Secures spring assembly in valve body |
| 4681301016 | SCREEN SHEET | Fine mesh filter for hydraulic fluid |
| 4681301017 | SCREEN SHEET | Coarse mesh pre-filter for oil sump |
| 0636100803 | CAP SCREW | High-torque bolt for housing closure |
Frequently Asked Questions
Q: Can I replace the 0732.300.244 spring without removing the transmission?
A: Yes, in most BP210/BP230 models, this spring is accessible after removing the valve body cover. However, we recommend inspecting the 4681301015: FIXING PLATE for wear during service.
Q: How do I know if my spring tension is within spec?
A: Measure the free length; if it is below 46.5 mm, the spring has fatigued. Compare with the 4681301016: SCREEN SHEET condition—debris often indicates spring fragments.
Q: Is this spring compatible with ZF WG200 models?
A: Yes, the 0732.300.244 is shared across WG180, WG200, BP210, and BP230 platforms. Always verify by checking the 4681298001: CASE casting number for confirmation.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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