ZF 4108.017.101 P 7300 | OEM Genuine Part

Overview

This OEM genuine ZF 4108.017.101 P 7300 is a critical hydraulic control unit designed to manage clutch engagement and gear selection within the transmission valve body. It serves as the primary interface between the electronic control module and the hydraulic circuits, directing pressurized oil to the appropriate clutch packs. The SKU 4108.017.101 is precision-machined to maintain exact oil flow tolerances, ensuring smooth shifts under heavy loads. It sits directly on the main control housing, interfacing with the 4108101120: HOUSING and the 4108201307: HOUSING to form a sealed hydraulic circuit.

Symptoms of Failure

• Erratic or delayed gear engagement: When the 4108.017.101 wears internally, operators notice a 2-3 second delay when shifting from neutral to drive or reverse, especially under load.
• Intermittent transmission slipping: Worn spool valves inside this unit cause pressure loss, leading to clutch slip during uphill climbs or when carrying rated loads.
• Hydraulic oil contamination: Debris from a failing control unit can migrate into the sump, requiring replacement of the 0501325471: SEALING RING and a thorough system flush.
• Low transmission fluid warning: Internal leakage past the valve lands causes the 0501215601: OIL LEVEL GAGE to read falsely low, even when the sump is properly filled.

Technical Specifications

Compatibility

This hydraulic control unit is engineered for ZF’s WG series powershift transmissions commonly found in construction machinery. It is a direct fit for the WG180, WG200, and WG211 models. It also applies to the WG150 and WG250 series when used with the corresponding adapter plate. Always verify the valve body casting number against the 0730365280: TYPE PLATE to confirm exact model compatibility before installation.

Related Components

Frequently Asked Questions

Q: Can the 4108.017.101 be rebuilt, or must it be replaced as a unit?
A: This is a non-serviceable sealed assembly. Attempting to disassemble it will damage the internal spool bore tolerances. Always replace with the OEM genuine P 7300 unit.

Q: What torque specification should I use for the mounting bolts?
A: Tighten the M6 bolts to 10 Nm (7.4 ft-lbs) in a crisscross pattern. Over-torquing can warp the 4108101120: HOUSING and cause internal binding.

Q: Will this part work with synthetic transmission fluid?
A: Yes, it is compatible with synthetic ATF (Dexron VI or equivalent). However, ensure the 0501325471: SEALING RING is also replaced to prevent compatibility issues with older seal materials.