Overview
The ZF 4657.183.097 is a genuine OEM component engineered specifically for the WG 190 series transmission. This precision-machined part functions as a critical interface element within the valve body assembly, regulating hydraulic fluid flow to ensure smooth clutch engagement and consistent gear shifts. The SKU 4657.183.097 is manufactured to ZF’s original tolerances, making it a direct replacement for worn units in heavy-duty commercial drivelines. When installed alongside the 4657101039: TRANSMISSION HOUSING, this component helps maintain proper oil pressure distribution across the planetary gear sets.
Symptoms of Failure
- Delayed or harsh shifting under load: A worn 4657.183.097 can cause erratic hydraulic pressure, leading to noticeable lag when accelerating or climbing grades.
- Internal transmission oil leaks: Degraded sealing surfaces on this part often produce slow drips from the bell housing area, especially after extended highway operation.
- Intermittent gear slipping in higher ranges: When this component loses its dimensional integrity, the WG190 may momentarily lose torque in 4th or 5th gear during steady throttle.
- Erratic torque converter lockup: A failing unit can prevent proper converter clutch engagement, causing elevated fluid temperatures and reduced fuel economy.
Technical Specifications
| Parameter | Value |
|---|---|
| OEM Part Number | 4657.183.097 |
| Material | High-grade aluminum alloy with nitrile sealing elements |
| Weight | 0.85 kg (1.87 lbs) |
| Length | 142 mm |
| Width | 68 mm |
| Height | 35 mm |
| Operating Temperature Range | -40°C to +120°C |
| OEM Reference | ZF 4657.183.097 (Genuine) |
Compatibility
This genuine ZF part is primarily designed for the WG 190 Series transmission family. It is also compatible with the closely related WG180 and WG200 models that share the same valve body architecture. The 4657.183.097 interfaces directly with the 4657201028: HOUS.FRONT SECT and the 4657201013: HOUSING REAR PART to form a sealed hydraulic circuit. For proper alignment during installation, always use the 0631306792: CYLINDRICAL PIN to locate the assembly correctly. This part is not backward-compatible with older WG150 or WG160 units without adapter modifications.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101039 | TRANSMISSION HOUSING | Main structural casing that encloses gear sets and valve body |
| 4657201028 | HOUS.FRONT SECT | Front section housing that supports input shaft and pump |
| 4657201013 | HOUSING REAR PART | Rear housing section that contains output shaft bearings |
| 0631306792 | CYLINDRICAL PIN | Alignment dowel for precise housing-to-housing positioning |
| 0636100801 | CAP SCREW | M10 fastening bolt for securing valve body covers |
| 4656301148 | FIXING PLATE | Retainer plate for locking shift rail positions |
| 4657301034 | SCREEN SHEET | Fine mesh filter for hydraulic circuit debris protection |
| 4657301035 | SCREEN SHEET | Secondary coarse mesh filter for sump return line |
| 0636100803 | CAP SCREW | M8 fastening bolt for oil pan attachment |
| 4681301040 | OIL FEED.HOUSG. | Pressurized oil distribution manifold to clutch packs |
Frequently Asked Questions
Q: How do I know if the 4657.183.097 needs replacement versus just cleaning?
A: Inspect the sealing surfaces for scoring or flatness deviation. If the part shows visible wear grooves or measures more than 0.05 mm out of flat, replacement is required. Simple cleaning is only effective if no dimensional wear is present.
Q: Can this part be used in a ZF WG200 transmission without modifications?
A: Yes, the 4657.183.097 is a direct fit for WG200 models that share the same valve body casting. However, always verify the production date of your transmission; units built before 2008 may require the 4656301148: FIXING PLATE to be updated simultaneously.
Q: What torque specification should I use when installing this part?
A: Use 22 Nm (16 ft-lbs) for the cap screws securing this component. Over-tightening can distort the aluminum housing and cause internal leakage. Always use new 0636100801: CAP SCREW fasteners during reinstallation.
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Phone: +86 158 2286 3467 |
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