Overview
This ZF 2093.147.404 OIL SUPPLY is a critical OEM genuine component engineered to deliver pressurized lubrication directly to the gear train and bearing assemblies within ZF construction machinery transmissions. Positioned within the lower sump area of the transmission housing, this oil supply unit ensures consistent hydraulic flow, preventing metal-on-metal contact during high-torque operations. The SKU 2093.147.404 is specifically designed to interface with the main 2093101011: HOUSING and the secondary 2093301027: HOUSING, forming a sealed circuit that maintains oil pressure even under extreme loads. Without a properly functioning oil supply, internal components such as the 2093103025: COUNTERSHAFT and 2093303040: COUNTERSHAFT would suffer rapid wear, making this part indispensable for long-term transmission health.
Symptoms of Failure
- Intermittent gear slippage under load: When the oil supply unit degrades, hydraulic pressure drops, causing the 0501007515: SYNCHRONIZER to disengage unexpectedly during excavation or grading.
- Visible oil seepage around the transmission bell housing: Cracks or seal failures in the 2093.147.404 unit allow ATF to escape, often pooling near the 0634306328: O-RING interface.
- Delayed engagement when shifting from neutral to drive: A worn oil supply restricts flow to the 2093303087: HELICAL GEAR set, causing a 2-3 second lag in power delivery.
- Overheating transmission fluid: Insufficient oil volume from a failing supply unit leads to elevated sump temperatures, accelerating degradation of the 2093301021: GASKET and surrounding seals.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number (SKU) | 2093.147.404 |
| Material | Die-cast aluminum alloy with nitrile sealing |
| Weight | 1.85 kg (4.08 lbs) |
| Dimensions (L x W x H) | 210 mm x 95 mm x 65 mm |
| OEM Reference | ZF 2093.147.404 |
| Operating Pressure Range | 8–15 bar (116–218 psi) |
| Fluid Compatibility | ZF EcoFluid M-1 or equivalent ATF |
Compatibility
This OEM genuine oil supply unit is primarily utilized in ZF WG180, WG200, and WG210 series powershift transmissions commonly found in wheel loaders, dozers, and telehandlers. It also fits select variants of the ZF 4WG-200 and 5WG-210 models used in construction machinery. For precise fitment, always verify the 0730365092: TYPE PLATE on your transmission housing, as this plate identifies the exact assembly revision. Additionally, the 0631311009: GROOVED STUD must be inspected during installation to ensure proper alignment of the oil supply within the main housing.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2093101011 | HOUSING | Main structural casing for gear and shaft assembly |
| 2093301027 | HOUSING | Secondary housing supporting countershaft bearings |
| 0730365092 | TYPE PLATE | Identification plate with transmission serial and model |
| 0631311009 | GROOVED STUD | Alignment dowel for precise housing positioning |
| 2093301021 | GASKET | Sealing layer between housing and oil supply unit |
| 0634306328 | O-RING | Hydraulic seal for oil supply port connection |
| 2093103025 | COUNTERSHAFT | Primary torque transfer shaft in gear train |
| 2093303040 | COUNTERSHAFT | Secondary shaft for reverse gear engagement |
| 2093303087 | HELICAL GEAR | Noise-reducing gear for constant mesh operation |
| 0501007515 | SYNCHRONIZER | Speed-matching clutch for smooth gear shifts |
Frequently Asked Questions
Q: Can the ZF 2093.147.404 oil supply be repaired, or must it be replaced?
A: This is a sealed, non-serviceable unit. Any internal blockage or crack requires full replacement with the OEM genuine part to maintain proper lubrication pressure.
Q: How often should the oil supply unit be inspected on a WG200 transmission?
A: ZF recommends visual inspection during every major transmission overhaul (typically every 4,000–6,000 operating hours) or immediately if any failure symptoms appear.
Q: Is the 2093.147.404 compatible with the 2093301021 gasket?
A: Yes, the 2093301021: GASKET is the correct sealing component for this oil supply unit and must be replaced simultaneously to prevent leaks.
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