Overview
The ZF 6073.015.216 EST 37 A for BP210 is a precision-engineered solenoid valve assembly that regulates hydraulic pressure within the BP 210 series transmission. This OEM genuine part, identified by SKU 6073.015.216, sits in the valve body and controls clutch pack engagement and shift timing. It directly interfaces with the HOUS.FRONT SECT to ensure consistent oil flow during gear changes. When functioning correctly, it maintains smooth power delivery under heavy loads. The EST 37 A designation indicates a specific calibration for BP210 applications, making it a direct replacement for worn units.
Symptoms of Failure
- Delayed or harsh shifting – When the solenoid fails, hydraulic pressure fluctuates, causing noticeable lag between gear changes or abrupt engagement. This often triggers transmission fault codes.
- Erratic clutch slip under load – A failing EST 37 A cannot maintain steady pressure, leading to intermittent slipping in higher gears, especially when towing or climbing grades.
- Oil leaks at the valve body interface – Worn O-rings or internal cracks allow ATF to seep past the solenoid, leaving puddles under the bell housing. This symptom frequently accompanies a damaged HOUSING REAR PART.
- Transmission stuck in limp mode – The control module detects electrical resistance outside spec and locks the transmission in second or third gear to prevent damage.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 6073.015.216 |
| OEM Reference | EST 37 A for BP210 |
| Material | Hardened steel spool with anodized aluminum body |
| Weight | 0.42 kg (0.93 lbs) |
| Operating Pressure | 8–22 bar |
| Coil Resistance | 5.2 ohms ± 0.3 ohms at 20°C |
| Seal Type | Viton O-rings (included) |
| Compatible Housing | TRANSMISSION HOUSING |
Compatibility
This solenoid is engineered for the ZF BP 210 series, but it also fits select WG transmissions that share the same valve body architecture. Verified compatible models include WG180, WG200, and WG210 when equipped with the BP210 control module. It is not backward-compatible with older HP series units. For proper installation, ensure the HOUSING REAR SECTION is free of debris and the mating surface is flat.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101078 | TRANSMISSION HOUSING | Main structural casing for gear sets |
| 4657201166 | HOUS.FRONT SECT | Front section housing the torque converter |
| 4657201168 | HOUSING REAR PART | Rear housing supporting output shaft |
| 4657298101 | HOUSING REAR SECTION | Lower rear section for oil sump |
| 0631306816 | CYLINDRICAL PIN | Alignment dowel for housing mating |
| 0636100801 | CAP SCREW | M10 bolt for valve body retention |
| 4656301148 | FIXING PLATE | Locks solenoid into valve body |
| 4657301032 | SCREEN SHEET | Fine mesh filter for hydraulic circuit |
| 4657301033 | SCREEN SHEET | Coarse mesh pre-filter for oil pump |
| 0636100803 | CAP SCREW | M8 bolt for housing flange |
Frequently Asked Questions
Q: Can I use the 6073.015.216 in a ZF WG180 without modifying the wiring harness?
A: Yes, the electrical connector is identical across BP210 and WG180 series. However, you must verify that the control module firmware supports the EST 37 A calibration to avoid shift timing errors.
Q: How do I test this solenoid before installation?
A: Measure coil resistance between the two pins. It should read 5.2 ohms. Apply 12V DC briefly; you should hear a distinct click. If resistance is open or shorted, replace the unit.
Q: Does this part include the mounting hardware?
A: The solenoid ships with new Viton O-rings but does not include cap screws. We recommend ordering CAP SCREW 0636100801 separately to ensure proper torque.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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