Overview
The ZF 0899.320.191 is a critical OEM genuine component engineered specifically for the WG 110 Series transmission. This part functions as a precision-machined adapter or guide element, positioned within the valve body or hydraulic control assembly to ensure accurate fluid routing and pressure regulation. The SKU 0899.320.191 is manufactured to ZF’s exacting tolerances, guaranteeing seamless integration with the transmission’s internal architecture. When installed correctly, this part maintains the hydraulic integrity required for consistent shift quality and torque converter lock-up performance.
Symptoms of Failure
When the ZF 0899.320.191 begins to wear, operators may notice erratic gear engagement during low-speed maneuvers, a common long-tail search query for “WG110 transmission hesitation.” Another frequent failure symptom is intermittent loss of drive in forward gears, often reported as “transmission slipping under load.” Technicians also diagnose hydraulic fluid contamination caused by degraded sealing surfaces, which can lead to “ZF transmission overheating” complaints. Finally, a worn 0899.320.191 may produce audible whining or buzzing from the valve body area, particularly when the transmission is cold.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number | 0899.320.191 |
| Material | Hardened Steel / Aluminum Alloy |
| Weight | 0.45 kg (approx.) |
| Dimensions | 85 mm x 45 mm x 25 mm |
| OEM Reference | ZF 0899.320.191 |
| Surface Finish | Anodized / Phosphate Coated |
Compatibility
This OEM genuine part is primarily designed for the ZF WG 110 Series transmission, but it also shares compatibility with select models in the WG180 and WG200 families. The 0899.320.191 is commonly found in medium-duty commercial vehicles, municipal trucks, and off-highway equipment. For exact fitment, always cross-reference your transmission’s serial number with ZF’s official documentation. When replacing this component, it is advisable to inspect the 4651101013: TRANSMISSION HOUSING and 4651301032: HOUSING for cracks or warpage. Additionally, the 0634303928: O-RING and 4651301033: HOUSING should be replaced concurrently to prevent fluid bypass.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4651101013 | TRANSMISSION HOUSING | Main structural casing for gear train |
| 4651301032 | HOUSING | Secondary housing for valve body assembly |
| 0634303928 | O-RING | Hydraulic seal between mating surfaces |
| 4651301033 | HOUSING | Cover housing for clutch pack access |
| 4651203002 | SCREEN SHEET | Fine mesh filter for hydraulic fluid |
| 4651303005 | SCREEN SHEET | Coarse debris screen for oil sump |
| 0636101032 | CAP SCREW | Fastener for housing retention |
| 0630361028 | SEALING CAP | Plugs unused hydraulic ports |
| 4475280060 | SCREW PLUG | Threaded plug for pressure test points |
| 0634303312 | O-RING | Seal for screw plug interface |
Frequently Asked Questions
Q: Can the ZF 0899.320.191 be reused after removal?
A: ZF recommends replacing this part with a new OEM unit whenever it is removed, as the sealing surfaces and internal tolerances may degrade during extraction.
Q: What tools are required to install the 0899.320.191?
A: Standard metric socket set, torque wrench (range 10-25 Nm), and a seal driver kit are typically sufficient. Always consult the ZF service manual for your specific WG110 model.
Q: How does this part interact with the transmission housing?
A: The 0899.320.191 seats directly against the 4651101013: TRANSMISSION HOUSING and is secured by the 0636101032: CAP SCREW. Proper torque sequencing is critical to avoid warping the mating flange.
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Phone: +86 158 2286 3467 |
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