ZF 4143.110.400 LUBE OIL PUMP for WG100/WG130/WG131 | OEM Genuine Part

Overview

The ZF 4143.110.400 LUBE OIL PUMP is a critical hydraulic component engineered for the WG100, WG130, and WG131 transmission series. This OEM genuine part ensures consistent lubrication and cooling oil flow to bearings, gears, and clutch packs within the transmission housing. The pump sits directly within the lower sump area, drawing oil through a pickup screen and pressurizing it through the valve body. The SKU 4143.110.400 is a direct replacement for original equipment, guaranteeing proper oil pressure and flow characteristics for long service life.

Symptoms of Failure

• Low transmission oil pressure warning – A worn lube oil pump fails to maintain adequate hydraulic pressure, triggering dashboard alerts or diagnostic trouble codes.
• Gear slipping under load – Insufficient lubrication causes clutch pack drag and gear disengagement, especially during acceleration or hill climbing.
• Overheating transmission fluid – Reduced oil flow prevents proper heat dissipation, leading to elevated sump temperatures and fluid degradation.
• Whining or grinding noise from transmission – Metal-on-metal contact from inadequate lubrication produces audible noise, often worsening with RPM increase.

Technical Specifications

Compatibility

This lube oil pump is designed for ZF WG100, WG130, and WG131 transmissions. It also fits select models in the HL 100 Series and HL 270 Series, including WG180 and WG200 variants when used with the correct 4143101025: HOUSING assembly. For proper installation, ensure the pump mates with the 4143301055: HOUSING and the 4143298040: CASE. Secure the assembly using a 0631329135: SPRING PIN to prevent rotation.

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