ZF 6073.017.172 for WG160 | OEM Genuine Part

Overview

The ZF 6073.017.172 is an OEM genuine component engineered specifically for the WG 160 Series transmission. This precision-machined part serves as a critical interface within the hydraulic control circuit, regulating oil flow to the clutch packs and ensuring smooth gear engagement under heavy load. As a direct replacement for the original factory unit, the SKU 6073.017.172 guarantees exact fitment and OEM-specified tolerances, eliminating the guesswork associated with aftermarket alternatives. When installed correctly, this part restores the transmission’s ability to maintain consistent line pressure, which is essential for preventing premature wear in high-torque applications.

Symptoms of Failure

• Erratic shifting under load: A worn 6073.017.172 often causes the WG160 to hunt between gears or delay engagement when hauling heavy payloads, a condition frequently searched as “ZF transmission hunting for gear.”
• Low line pressure at idle: Operators may notice a soft or delayed forward engagement from a standstill, accompanied by a whining noise from the pump circuit—a classic sign of internal leakage past this component.
• Oil seepage around the valve body: If the sealing surfaces of this part degrade, transmission fluid can weep from the joint between the housing and the HOUS.FRONT SECT, leading to low fluid levels and eventual clutch slip.
• Intermittent neutral condition: In advanced failure stages, the transmission may unexpectedly drop into neutral during deceleration, a symptom often reported as “ZF WG160 sudden loss of drive.”

Technical Specifications

Compatibility

This genuine ZF part is primarily designed for the WG 160 Series transmission, but it also fits select variants within the WG family. Based on its hydraulic control function, the 6073.017.172 is compatible with the following ZF models: WG160, WG180, WG200, and WG210. It is commonly used in municipal trucks, refuse vehicles, and medium-duty construction equipment. Always verify the part number against your transmission’s serial plate before installation. For a complete rebuild, pair this component with the CYLINDRICAL PIN and the FIXING PLATE to ensure proper alignment of the valve body assembly. Secure the unit using the CAP SCREW specified for this application.

Related Components

Frequently Asked Questions

Q: How do I know if the 6073.017.172 is the correct part for my WG160?
A: Check the stamped part number on the valve body or consult your transmission’s service manual. The 6073.017.172 is a direct OEM replacement for WG160 units built after 2008. If your unit has a different prefix, verify compatibility with our technical team using the transmission serial number.

Q: Can I replace this part without removing the transmission?
A: Yes, the 6073.017.172 is accessible after draining the fluid and removing the transmission oil pan and valve body. However, we recommend replacing the GASKET and SCREEN SHEET simultaneously to prevent contamination from re-entering the system.

Q: What torque specification should I use for the cap screws?
A: For the CAP SCREW securing the fixing plate, use 25 Nm (18.4 ft-lbs). Over-tightening can distort the valve body and cause sticking valves. Always use a calibrated torque wrench.