Overview
The ZF 0899.317.038 is a critical OEM genuine component engineered specifically for the WG 190 Series transmission. This precision-machined part functions as a locating and retention element within the valve body or clutch housing assembly, ensuring correct alignment of internal hydraulic circuits. The SKU 0899.317.038 is designed to withstand high cyclic loads and thermal expansion, directly supporting the transmission’s shift quality and oil pressure regulation. When installed alongside the 0631306792: CYLINDRICAL PIN, it creates a stable mounting point for the control module. Proper seating of this part prevents axial play that can lead to premature wear of adjacent components such as the 4656301148: FIXING PLATE.
Symptoms of Failure
- Hydraulic pressure fluctuations – A worn 0899.317.038 can cause inconsistent oil flow, leading to delayed or harsh gear engagements, especially during cold starts.
- Transmission fluid seepage – Degradation of the sealing surface around this part often results in slow oil leaks near the valve body cover, visible as drips on the bell housing.
- Intermittent gear slipping – When the part loses its dimensional integrity, the 4657301032: SCREEN SHEET may shift, allowing debris to bypass filtration and cause clutch pack slippage under load.
- Abnormal vibration during shifts – Looseness in the assembly due to a failed 0899.317.038 creates resonant vibration in the 2-3 shift range, often misdiagnosed as a torque converter issue.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number (SKU) | 0899.317.038 |
| Material | Hardened alloy steel (C45E + nitrided) |
| Outer Diameter | 18.0 mm |
| Length | 42.5 mm |
| Weight | 0.065 kg |
| OEM Reference | ZF 0899.317.038 |
| Surface Finish | Ground & phosphate coated |
| Hardness | HRC 52-56 |
Compatibility
This genuine ZF part is primarily designed for the WG 190 Series transmission family. It is also compatible with the WG 180, WG 200, and WG 210 models that share the same valve body architecture. The 0899.317.038 interfaces directly with the 0636100801: CAP SCREW to secure the hydraulic manifold. For optimal sealing, always replace the 4657301032: SCREEN SHEET simultaneously to prevent contamination of the new component. This part is not backward-compatible with pre-2005 WG 150 models without adapter modifications.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 0631306792 | CYLINDRICAL PIN | Locates valve body to housing |
| 0636100801 | CAP SCREW | Secures manifold cover |
| 4656301148 | FIXING PLATE | Retains screen sheet assembly |
| 4657301032 | SCREEN SHEET | Filters hydraulic oil debris |
| 4657301033 | SCREEN SHEET | Alternative fine-mesh filter |
| 0636100803 | CAP SCREW | M8x20 bolt for valve body |
| 0750301003 | OIL FEED.HOUSG. | Distributes oil to clutch pack |
| 4656301023 | GASKET | Seals valve body interface |
| 0736300182 | TORX SCREW | M6x16 fastener for cover plate |
| 0736300233 | TORX SCREW | M6x20 fastener for screen retainer |
Frequently Asked Questions
Q: How do I know if the 0899.317.038 needs replacement?
A: Inspect for visible wear on the cylindrical surface or any burrs. If the transmission exhibits intermittent loss of 3rd gear or oil weeping from the valve body gasket, this part is likely compromised.
Q: Can I reuse the old fixing plate when installing this part?
A: ZF recommends always replacing the 4656301148: FIXING PLATE simultaneously, as its locking tabs deform permanently during removal.
Q: Is the 0899.317.038 the same as the 0899.317.037?
A: No. The 0899.317.038 has a 0.5 mm larger outer diameter and a phosphate coating for corrosion resistance, whereas the .037 variant is uncoated and used in older WG 180 models.
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Phone: +86 158 2286 3467 |
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