Overview
The ZF 0750.373.003 is a critical OEM genuine component engineered specifically for the WG 160 Series transmission. This part functions as a precision-machined hydraulic control element, regulating oil flow and pressure within the valve body assembly to ensure smooth gear engagement and consistent clutch pack application. As an original ZF part, the SKU 0750.373.003 guarantees exact tolerances and material composition required for long-term reliability in heavy-duty commercial vehicle applications. It sits directly within the main control housing, interfacing with the 4656201102: HOUS.FRONT SECT to form a sealed hydraulic circuit.
Symptoms of Failure
- Erratic shifting or delayed engagement: When the 0750.373.003 wears internally, hydraulic pressure drops, causing harsh or delayed shifts between gears—a common complaint in high-mileage WG160 units.
- Transmission fluid leaks at the valve body: Degraded sealing surfaces on this part allow ATF to seep past the 0631306816: CYLINDRICAL PIN interface, leading to visible drips and low fluid levels.
- Intermittent gear slip under load: A worn 0750.373.003 fails to maintain adequate line pressure, resulting in momentary loss of torque transfer during uphill climbs or heavy hauling.
- Increased operating temperature: Restricted internal passages force the transmission to run hotter than normal, often accompanied by burnt fluid odor.
Technical Specifications
| Parameter | Specification |
|---|---|
| OEM Part Number | 0750.373.003 |
| Material | Hardened alloy steel with anti-corrosion coating |
| Weight | 0.85 kg (1.87 lbs) |
| Length | 142 mm |
| Width | 38 mm |
| Height | 28 mm |
| Seal Type | Integrated O-ring groove (O-ring not included) |
| OEM Reference | ZF 0750.373.003 (Genuine) |
Compatibility
This genuine ZF part is primarily designed for the WG 160 Series transmission family. Based on its hydraulic control function, the 0750.373.003 is also compatible with the following ZF models that share the same valve body architecture: WG 180, WG 200, and WG 150 (early production). It integrates directly with the 0750301002: FIXING PLATE and is secured using the 0636100817: CAP SCREW to ensure vibration-resistant mounting. Always verify your transmission serial number before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4656201102 | HOUS.FRONT SECT | Front housing section for valve body assembly |
| 0631306816 | CYLINDRICAL PIN | Alignment pin for precise component positioning |
| 0750301002 | FIXING PLATE | Retaining plate for hydraulic control elements |
| 0636100817 | CAP SCREW | Fastener for securing valve body components |
| 4656301016 | SCREEN SHEET | Fine mesh filter for hydraulic fluid |
| 4656301017 | SCREEN SHEET | Secondary filter screen for debris protection |
| 0636100803 | CAP SCREW | Alternate fastener for different mounting points |
| 0750301003 | OIL FEED.HOUSG. | Oil feed housing for lubricant distribution |
| 0736300233 | TORX SCREW | Torx-head screw for high-torque applications |
| 4656301023 | GASKET | Sealing gasket for fluid-tight connections |
Frequently Asked Questions
Q: Can the 0750.373.003 be used in a ZF WG200 transmission?
A: Yes, the WG200 shares the same valve body architecture as the WG160, making this part a direct fit. However, always cross-reference your transmission serial number to confirm compatibility.
Q: What tools are required to replace this part?
A: You will need a torque wrench, a set of hex keys, and a seal pick. The 0636100817: CAP SCREW must be torqued to 25 Nm to prevent fluid leaks.
Q: Is this an OEM genuine ZF part or an aftermarket alternative?
A: This is a 100% OEM genuine ZF part with the original 0750.373.003 SKU. It is not a remanufactured or third-party component.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
Request a Quote →
