Overview
The ZF 0899.317.627 DUCT PLATE is a precision-engineered component designed for the WG 160 series of automatic transmissions. This OEM genuine part serves as a critical fluid routing interface, directing transmission oil flow between the torque converter and the valve body assembly. Positioned within the main gear train housing, the duct plate ensures that hydraulic pressure is correctly channeled to actuate clutch packs and planetary gear sets. The SKU 0899.317.627 is manufactured to ZF’s exacting tolerances, providing a leak-proof seal and consistent oil distribution that is essential for smooth shifting and long-term durability. When this plate is compromised, the entire hydraulic circuit of the transmission can be affected, leading to performance degradation.
Symptoms of Failure
When the ZF 0899.317.627 DUCT PLATE begins to fail, operators may notice specific operational issues. External oil seepage around the transmission housing joint is a common early indicator, often mistaken for a simple gasket leak. Another symptom is erratic or delayed gear engagement, particularly when shifting from neutral to drive or reverse, as hydraulic pressure drops. You may also experience intermittent transmission slipping under load, where the engine revs increase without a corresponding increase in vehicle speed. Finally, contaminated transmission fluid with metallic debris can appear if the plate cracks, allowing wear particles to circulate through the system.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number | 0899.317.627 |
| Material | High-strength cast aluminum alloy |
| Weight | 0.85 kg (1.87 lbs) |
| Length | 215 mm |
| Width | 95 mm |
| Thickness | 12 mm |
| OEM Reference | ZF 0899.317.627 |
| Surface Finish | Anodized for corrosion resistance |
Compatibility
This duct plate is primarily designed for the ZF WG 160 series transmission, but it also fits several related heavy-duty models. Compatible transmissions include the WG 160, WG 180, WG 200, and WG 220 series, which are commonly found in municipal buses, construction vehicles, and industrial trucks. The part interfaces directly with the TRANSMISSION HOUSING and the HOUS.FRONT SECT to create a sealed oil gallery. For rear-mounted applications, it also aligns with the HOUSING REAR PART (4656201034) and the HOUSING REAR PART (4472239177). Always verify your transmission serial number before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4656101032 | TRANSMISSION HOUSING | Main structural casing for gear train |
| 4656201075 | HOUS.FRONT SECT | Front section housing for converter |
| 4656201034 | HOUSING REAR PART | Rear housing for output shaft |
| 4472239177 | HOUSING REAR PART | Alternate rear housing variant |
| 0631306816 | CYLINDRICAL PIN | Alignment dowel for housing assembly |
| 0636100817 | CAP SCREW | Fastener for duct plate retention |
| 4656301016 | SCREEN SHEET | Oil filter mesh for debris protection |
| 4656301017 | SCREEN SHEET | Secondary oil filter screen |
| 0636100803 | CAP SCREW | Mounting bolt for housing sections |
| 4681301040 | OIL FEED.HOUSG. | Oil supply line to clutch packs |
Frequently Asked Questions
Q: Can the 0899.317.627 duct plate be reused after removal?
A: ZF recommends replacing this duct plate with a new OEM unit whenever the transmission housing is separated, as the sealing surfaces can deform over time and lead to oil leaks.
Q: What tools are needed to install this part?
A: Installation requires a torque wrench, a set of hex sockets, and a sealant applicator. The plate is secured using cap screws such as 0636100817 and aligned with CYLINDRICAL PIN.
Q: How does a damaged duct plate affect transmission temperature?
A: A cracked or warped duct plate disrupts oil flow, causing localized overheating in the torque converter area, which can accelerate wear on the OIL FEED.HOUSG. and other hydraulic components.
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Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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