Overview
The ZF 2099.147.017 OIL SUPPLY is a critical hydraulic component responsible for delivering pressurized lubricant to the internal gear sets, bearings, and differential assemblies within ZF heavy-duty transmissions. This OEM genuine part ensures consistent oil flow to reduce friction and dissipate heat during high-torque operations in construction machinery. The SKU 2099.147.017 sits directly in the transmission sump, routing oil to the 2099109002: DIFFERENTIAL and the 2099364014: CROWN WHEEL to prevent premature wear. Without this supply unit, the entire drivetrain risks catastrophic failure due to inadequate lubrication.
Symptoms of Failure
- Intermittent oil starvation under load: When the 2099.147.017 wears, the 2099209001: DIFFERENTIAL may whine or chatter during excavation, indicating insufficient oil delivery to the pinion gears.
- Visible oil seepage from the transmission housing: Cracks or seal degradation in the supply unit cause fluid to escape near the 2098309010: DIFFERENTIAL HOUSING, leaving puddles under the equipment.
- Erratic gear engagement in low-speed maneuvers: A failing oil supply leads to hydraulic pressure drops, causing delayed clutch pack activation and harsh shifting in WG-series transmissions.
- Overheating of the axle bevel gear set: Reduced oil flow to the 2098309031: AXLE BEVEL GEAR generates excessive heat, often triggering thermal warning lights on the dashboard.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | ZF 2099.147.017 |
| Material | Die-cast aluminum alloy with nitrile seals |
| Overall Length | 185 mm |
| Width | 95 mm |
| Height | 70 mm |
| Dry Weight | 1.45 kg |
| OEM Reference | 2099.147.017 (ZF original) |
| Operating Pressure | 8–12 bar |
| Flow Rate | 22 L/min at 2000 RPM |
Compatibility
This oil supply unit is engineered for ZF WG180, WG200, and WG210 series powershift transmissions commonly used in wheel loaders, graders, and excavators. It also fits select ECOMIX drivelines where the 2098309009: DIFFERENTIAL HOUSING is employed. Always verify the casting number on your existing unit before installation, as the 2099.147.017 replaces earlier revisions with improved oil channel geometry.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2099109002 | DIFFERENTIAL | Distributes torque to drive axles |
| 2099364014 | CROWN WHEEL | Transfers rotational force from pinion |
| 2099209001 | DIFFERENTIAL | Secondary differential for planetary hubs |
| 2098309010 | DIFFERENTIAL HOUSING | Encloses differential gear set |
| 2098309009 | DIFFERENTIAL HOUSING | Alternate housing variant for WG200 |
| 2098309031 | AXLE BEVEL GEAR | Reduces speed from differential output |
| 2098309030 | AXLE BEVEL GEAR | Matching bevel gear for opposite side |
| 2098309032 | DIFFERENTIAL BEVEL GEAR | Spider gear inside differential case |
| 12883200682 | THRUST WASHER | Reduces axial play in gear stack |
| 0635332059 | BALL BEARING | Supports rotating shaft loads |
