ZF 4108.012.109 P 3200 | OEM Genuine Part

Overview

The ZF 4108.012.109 P 3200 is an OEM genuine part engineered for the high-torque environment of construction machinery transmissions. This component functions as a critical interface within the hydraulic control circuit, regulating oil flow to the clutch packs. It sits directly within the valve body assembly of ZF powershift transmissions. The SKU 4108.012.109 is a factory-sealed unit, ensuring precise tolerances for maintaining line pressure and shift quality under heavy loads. When replacing this unit, it is common to also inspect the adjacent 4108101057: HOUSING for cracks or wear, as both parts share a sealed oil gallery.

Symptoms of Failure

• Erratic gear engagement under load: When the 4108.012.109 wears internally, the transmission may hesitate or slam into gear, particularly when moving from neutral to forward on an incline.
• Hydraulic oil seepage at the valve body: A failing unit often causes external leaks around the mounting flange. Look for drips near the 0636302056: SCREW PLUG which seals the test port.
• Delayed clutch pack activation: Operators may notice a 2-3 second lag after shifting, accompanied by a drop in system pressure. This symptom worsens as the internal spool wears.
• Overheating transmission fluid: Continuous internal bypass due to a worn valve body component generates excess heat, often triggering warning lights on the dash.

Technical Specifications

Compatibility

This genuine ZF part is designed for the WG180 and WG200 series powershift transmissions commonly found in wheel loaders, dozers, and excavators. It also fits select WG150 and WG250 models produced after 2005. The 4108.012.109 is not interchangeable with earlier P 3100 series valves. Always verify the casting number on the 4108201177: HOUSING to confirm compatibility, as the bolt pattern changed in later production runs. For machines using a PTO, the 4108111051: POWER TAKE-OFF shares the same hydraulic circuit and should be inspected simultaneously.

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