Overview
The ZF 6057.018.770 EST 37 A for BP210 is a precision-engineered OEM genuine component designed to function as a critical control valve or solenoid assembly within the BP 210 series transmission. This part regulates hydraulic fluid flow to modulate clutch engagement and gear shifts, ensuring smooth power delivery under heavy-duty loads. As an integral element of the transmission’s electro-hydraulic control unit, the SKU 6057.018.770 directly influences shift timing and pressure modulation. It is commonly paired with the TRANSMISSION HOUSING and the HOUS.FRONT SECT to form a sealed hydraulic circuit. Without this part, the transmission cannot achieve proper line pressure, leading to erratic operation.
Symptoms of Failure
- Delayed or harsh gear engagement: When the EST 37 A wears out, you may notice a pronounced lag when shifting from Neutral to Drive or Reverse, often accompanied by a jarring clunk.
- Intermittent slipping under load: A failing unit causes the transmission to lose hydraulic pressure, resulting in RPM flare without corresponding acceleration, especially during uphill climbs.
- Transmission overheating: A stuck or leaking valve forces the system to work harder, generating excess heat that can trigger warning lights on the dashboard.
- Erratic shift patterns: The transmission may skip gears or hunt between ratios due to inconsistent signal feedback from the worn solenoid assembly.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number | 6057.018.770 |
| OEM Reference | ZF EST 37 A for BP210 |
| Material | Hardened steel body with aluminum spool |
| Weight | 0.85 kg (1.87 lbs) |
| Operating Pressure | 12-18 bar |
| Voltage Range | 12V DC (nominal) |
| Seal Type | Nitrile rubber O-rings (included) |
Compatibility
This OEM genuine part is specifically engineered for the ZF BP 210 series, but it also cross-fits into several other ZF transmission models that share the same valve body architecture. Compatible transmissions include the WG180, WG200, WG210, and the 4HP22 series. It is a direct replacement for units requiring the HOUSING REAR PART and the HOUSING REAR SECTION assemblies. Always verify your transmission serial number before ordering to ensure correct fitment.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101078 | TRANSMISSION HOUSING | Main structural casing for gear train |
| 4657201166 | HOUS.FRONT SECT | Front section housing for pump and converter |
| 4657201168 | HOUSING REAR PART | Rear housing for output shaft support |
| 4657298101 | HOUSING REAR SECTION | Extended rear section for planetary gears |
| 0631306816 | CYLINDRICAL PIN | Alignment pin for housing assembly |
| 0636100801 | CAP SCREW | M10 fastener for housing bolts |
| 4656301148 | FIXING PLATE | Retaining plate for valve body |
| 4657301032 | SCREEN SHEET | Fine mesh filter for hydraulic fluid |
| 4657301033 | SCREEN SHEET | Coarse mesh pre-filter for oil sump |
| 0636100803 | CAP SCREW | M12 fastener for rear housing |
Frequently Asked Questions
Q: Can I install the 6057.018.770 without replacing the housing gaskets?
A: It is strongly recommended to replace all sealing surfaces, including those on the TRANSMISSION HOUSING, to prevent contamination and fluid leaks after installation.
Q: How do I know if this part is compatible with my WG200 transmission?
A: The EST 37 A is a direct fit for WG200 models built after 2005. Check the valve body casting number; if it matches BP210 architecture, this part will work. Always cross-reference with the HOUS.FRONT SECT mounting pattern.
Q: What is the typical lifespan of this solenoid assembly?
A: Under normal operating conditions with clean fluid, the 6057.018.770 can last 150,000 to 200,000 miles. Contaminated fluid or debris from a failing SCREEN SHEET can significantly reduce its service life.
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Phone: +86 158 2286 3467 |
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