ZF 4460.368.320 PISTON for WG200 | OEM Genuine Part

Overview

The ZF 4460.368.320 PISTON is a critical hydraulic actuation component engineered specifically for the WG 200 series powershift transmissions. This OEM genuine part functions as a pressure-responsive plunger within the clutch pack assembly, converting hydraulic force into mechanical movement to engage or disengage gear sets. Positioned inside the transmission valve body or rotating clutch drum, the SKU 4460.368.320 ensures precise oil flow control and consistent clamping pressure. When paired with a 4460165051 CONSOLE or a 4460368311 CONSOLE, this piston forms the backbone of reliable shift modulation in heavy-duty industrial applications.

Symptoms of Failure

• Erratic gear engagement or slipping: A worn or scored piston surface cannot maintain proper hydraulic seal, causing delayed or incomplete clutch pack lockup during acceleration.
• Internal transmission oil leaks: Cracks or pitting on the piston bore allow pressurized ATF to bypass, leading to low system pressure and visible fluid seepage around the bell housing.
• Harsh or clunking shifts: When the piston sticks due to debris or corrosion, hydraulic pressure spikes result in abrupt gear changes that stress driveline components.
• Overheating transmission: Continuous clutch slippage from a failing piston generates excessive friction heat, often triggering warning lights or burnt oil odor.

Technical Specifications

Compatibility

This piston is primarily designed for the ZF WG 200 series transmissions, including models WG180, WG200, and WG210. It also fits select variants of the ZF WG150 and WG160 when used in conjunction with a 0636011429 HEXAGON SCREW and a 0730100365 WASHER for secure mounting. Always verify piston stroke length against your specific transmission serial number before installation.

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