Overview
The ZF 4646.302.139 BRIDA DE ALIMENTACIÓN DE ACEITE para WG310 is a critical OEM oil supply flange designed to regulate pressurized lubrication within the transmission assembly. Positioned between the main casing and the hydraulic control circuit, this component ensures a steady flow of transmission fluid to the gear train and clutch packs. As a genuine original equipment part, the 4646.302.139 guarantees precise fitment and material integrity for demanding construction machinery applications. Without this flange, the transmission cannot maintain adequate oil pressure, leading to rapid component wear.
Symptoms of Failure
- External oil leaks at the flange mating surface: A worn or cracked 4646.302.139 often causes visible fluid seepage around the transmission housing joint, especially under high torque loads.
- Erratic gear engagement or slipping: When the oil supply flange fails to seal properly, hydraulic pressure drops, resulting in delayed clutch application or complete gear slip during operation.
- Overheating transmission fluid: Insufficient oil delivery due to a damaged brida de alimentación de aceite leads to inadequate cooling, causing the transmission to run hotter than normal.
- Low oil pressure warning codes: Modern ZF control units detect pressure loss from a compromised flange, triggering diagnostic trouble codes related to lubrication circuit faults.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 4646.302.139 |
| Material | Aluminum alloy with anodized finish |
| Weight | 0.85 kg (1.87 lbs) |
| Overall Length | 145 mm |
| Bolt Hole Center Distance | 85 mm |
| OEM Reference | ZF 4646.302.139 |
| Sealing Surface | Precision-machined flat face |
Compatibility
This oil supply flange is engineered for ZF WG series transmissions commonly used in construction machinery. Based on the part type and OEM numbering, the 4646.302.139 is compatible with the following models: WG180, WG200, WG310, and WG350. It is also found in select ZF 4WG and 6WG variants. Always verify your transmission serial number before ordering.
During installation, this flange mounts directly to the 4646101167: TRANSMISSION HOUSING and interfaces with the 4646301317: HOUSING. Secure the assembly using 0636115293: 螺栓 and 0636101153: CAP SCREW to achieve proper torque specifications.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4646101167 | TRANSMISSION HOUSING | Main structural casing for gear assembly |
| 4646301317 | HOUSING | Secondary cover for oil circuit |
| 0636115293 | 螺栓 | Mounting bolt for flange retention |
| 0636101153 | CAP SCREW | Fastener for housing connection |
| 4646201003 | POT | Oil pressure sensor port |
| 0736300232 | 螺栓 | Additional mounting hardware |
| 4646164011 | CONTROL UNIT | Electronic transmission controller |
| 4644306424 | GEAR SHIFT HOUSING | Manual shift mechanism enclosure |
| 4644306427 | GASKET | Sealing element between flanges |
| 0732042025 | COMPRESSION SPRING | Pressure relief spring for valve body |
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