ZF 2093.147.117 OIL SUPPLY | OEM Genuine Part

Overview

The ZF 2093.147.117 OIL SUPPLY is a critical hydraulic component engineered to deliver pressurized lubricant directly to the differential and gear train within ZF heavy-duty transmissions. Positioned in the lower sump area of the transmission housing, this OEM genuine part ensures consistent oil flow to high-friction zones, preventing thermal degradation and metal-to-metal contact. The SKU 2093.147.117 is specifically calibrated for construction machinery applications where sustained torque loads demand uninterrupted lubrication. Without this oil supply unit, the transmission’s internal components—including the 2093109029: DIFFERENTIAL and the 2093209094: DIFFERENTIAL—cannot maintain proper hydrodynamic lubrication, leading to accelerated wear.

Symptoms of Failure

• Intermittent oil starvation under load: When the 2093.147.117 oil supply degrades, operators notice delayed gear engagement or a momentary loss of drive power during heavy excavation, often accompanied by a whining noise from the differential housing.
• External oil seepage near the transmission pan: Cracks or seal failure in this part cause visible oil drips after extended operation, particularly around the mounting flange where the 0750117075: TAPER ROLLER BEARING sits adjacent.
• Overheating of the differential assembly: A failing oil supply restricts fluid volume to the 2093309078: DIFF.HOUSING, causing surface temperatures to spike above 120°C and triggering thermal warning lights on the dashboard.
• Contaminated oil with metallic debris: As the oil supply collapses, bearing surfaces in the differential erode, producing fine metal particles visible during routine oil sampling.

Technical Specifications

Compatibility

This oil supply unit is engineered for ZF WG-series powershift transmissions commonly deployed in wheel loaders, graders, and telehandlers. It directly fits the WG180, WG200, and WG210 models produced after 2008. The part also integrates with select ZF 4WG-200 and 6WG-310 variants where the oil gallery routing matches the 2093.147.117 port configuration. For verification, cross-reference the transmission serial number against the 0631100223: SPRING PIN alignment and the 0730300820: THRUST WASHER clearance specifications.

Related Components

Frequently Asked Questions

Q: Can the 2093.147.117 oil supply be repaired, or must it be replaced?
A: This is a sealed OEM unit with no serviceable internal components. Once cracks or flow restrictions develop, replacement with the genuine 2093.147.117 is mandatory to avoid secondary damage to the differential housing and bearings.

Q: How does this part interact with the taper roller bearing (0750117075)?
A: The oil supply directs a pressurized stream directly onto the taper roller bearing raceway. If the oil supply fails, the bearing experiences boundary lubrication, leading to rapid spalling and eventual seizure of the differential assembly.

Q: What torque specification should be used for the mounting bolts?
A: Tighten the four M10 bolts to 45 Nm (33 ft-lb) in a cross pattern. Over-torquing can distort the oil supply body and cause internal leakage past the thrust washer (0730300820) interface.