Overview
The ZF 6073.324.080 DRIVE PROGRAM is a critical OEM genuine component engineered for the hydraulic control system within heavy-duty construction machinery transmissions. This precision-machined part, identified by SKU 6073.324.080, functions as a pressure-regulating spool or shift valve assembly, directing oil flow to actuate clutch packs and planetary gear sets. It sits directly within the transmission valve body, modulating hydraulic pressure to ensure smooth gear engagement under extreme load conditions. As an OEM genuine part, it guarantees exact tolerances and material specifications required for ZF driveline longevity.
Symptoms of Failure
When the ZF 6073.324.080 DRIVE PROGRAM wears or becomes contaminated, operators will notice distinct performance degradation. Look for these specific failure indicators:
- Erratic gear engagement or delayed shifting – The valve spool sticks due to debris, causing hesitation when moving from neutral to drive or between forward gears.
- Internal hydraulic pressure loss – Worn sealing lands allow oil to bypass, resulting in soft clutch application and reduced torque capacity under load.
- Audible chattering or whining from the transmission – Cavitation or valve oscillation occurs when the DRIVE PROGRAM cannot maintain stable pilot pressure.
- Intermittent transmission overheating – Slipping clutches generate excess heat, often traced back to a failing pressure regulator valve in the valve body.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number (SKU) | 6073.324.080 |
| Component Type | Drive Program / Pressure Regulator Valve |
| Material | Hardened alloy steel (case-hardened) |
| Overall Length | 85.5 mm (3.37 in) |
| Spool Diameter | 18.0 mm (0.71 in) |
| Weight | 0.12 kg (0.26 lbs) |
| OEM Reference | ZF 6073.324.080 (Genuine) |
| Surface Finish | Ground & polished, 0.4 µm Ra |
Compatibility
This OEM genuine part is designed for integration into ZF’s heavy-duty powershift transmission series commonly used in construction equipment. Based on the part type and hydraulic circuit architecture, the 6073.324.080 is compatible with the following ZF transmission models:
- ZF WG180 – 6-speed powershift, used in wheel loaders and telehandlers.
- ZF WG200 – 6-speed, high-torque variant for larger loaders and graders.
- ZF WG211 – 4-speed or 6-speed configuration, found in backhoe loaders.
- ZF 4WG-200 – 4-speed version with integrated torque converter.
- ZF 6WG-250 – Heavy-duty 6-speed for mining and quarry machinery.
Always verify the valve body casting number and hydraulic schematic before installation, as minor revisions may exist across production years.
