Overview
This OEM genuine ZF 0750.372.004 component is a critical internal control element designed specifically for the WG 160 Series transmission. It regulates hydraulic pressure flow within the valve body assembly, ensuring precise clutch engagement and smooth gear shifts under heavy-duty operating conditions. The SKU 0750.372.004 interfaces directly with the main housing structure, working in concert with the 4656101077: TRANSMISSION HOUSING to maintain consistent oil circulation. Without this part, the transmission cannot achieve the required shift timing for commercial vehicle applications.
Symptoms of Failure
- Delayed or harsh shifting — When the 0750.372.004 wears internally, hydraulic pressure drops, causing noticeable lag between gear changes or abrupt engagement. This is a common “ZF transmission shift hesitation” issue.
- Intermittent gear slipping under load — Worn internal seals allow fluid bypass, leading to clutch pack slippage during uphill climbs or heavy hauling. Operators often search for “WG160 transmission slipping when loaded.”
- Erratic neutral-to-drive engagement — A failing unit may cause the transmission to hesitate or lurch when shifting from neutral to drive, particularly after the vehicle has been sitting overnight.
- Contaminated transmission fluid — Internal debris from a deteriorating 0750.372.004 can circulate through the system, accelerating wear on the 4656201102: HOUS.FRONT SECT and other precision components.
Technical Specifications
| Specification | Detail |
|---|---|
| OEM Part Number | 0750.372.004 |
| Material | Hardened alloy steel with corrosion-resistant coating |
| Weight | 0.45 kg (1.0 lb) |
| Dimensions (L x W x H) | 85 mm x 42 mm x 28 mm |
| Operating Pressure Range | 8–18 bar (116–261 psi) |
| OEM Reference | ZF 0750.372.004 (Genuine) |
| Compatible Housing | 4656201103: HOUSING REAR PART |
Compatibility
While primarily designed for the WG 160 Series, the 0750.372.004 is also compatible with ZF WG180 and WG200 transmissions that share the same valve body architecture. It can be retrofitted into earlier WG150 models after verifying the 4656298063: HOUSING REAR SECTION configuration. Always confirm your transmission serial number before ordering, as minor revisions exist between production years.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4656101077 | TRANSMISSION HOUSING | Main structural casing for gear train |
| 4656201102 | HOUS.FRONT SECT | Front section housing pump and converter |
| 4656201103 | HOUSING REAR PART | Rear section supporting output shaft |
| 4656298063 | HOUSING REAR SECTION | Extended rear housing for PTO mounting |
| 0631306816 | CYLINDRICAL PIN | Alignment dowel for housing mating surfaces |
| 0750301002 | FIXING PLATE | Retains valve body components in position |
| 0636100817 | CAP SCREW | M10 fastener for housing assembly |
| 4656301016 | SCREEN SHEET | Fine mesh filter for oil return line |
| 4656301017 | SCREEN SHEET | Coarse mesh pre-filter for pump intake |
| 0636100803 | CAP SCREW | M8 fastener for valve body cover |
Frequently Asked Questions
Q: Can the 0750.372.004 be replaced without removing the transmission?
A: Yes, in most WG160 installations, this part is accessible after draining the fluid and removing the valve body cover. However, access may be restricted on vehicles with tight chassis clearance; consult your service manual for specific procedures.
Q: How do I know if my 0750.372.004 is genuine OEM?
A: Genuine ZF parts feature laser-etched part numbers and a matte finish. Counterfeit units often have painted markings and rough edges. Always purchase from authorized distributors to avoid premature failure.
Q: Will a failed 0750.372.004 damage other transmission components?
A: Absolutely. Debris from a failing unit can clog the oil screens (such as 4656301016: SCREEN SHEET) and score bearing surfaces. Prompt replacement is essential to avoid costly rebuilds.
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Phone: +86 158 2286 3467 |
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