ZF 4657.131.023 FILLER NOZZLE for WG210 | OEM Genuine Part

Overview

The ZF 4657.131.023 FILLER NOZZLE is a precision-engineered fluid delivery component designed specifically for the WG210 series transmission. This OEM genuine part functions as the primary entry point for transmission fluid, directing oil into the torque converter and hydraulic control circuits. Positioned on the upper housing assembly, the filler nozzle ensures a controlled, splash-free fill during maintenance. The SKU 4657.131.023 is manufactured to ZF’s exacting tolerances, guaranteeing a secure seal and consistent flow rate. When replacing this nozzle, it is critical to also inspect the 0634313603: O-RING for proper sealing, and verify the condition of the 0631306816: CYLINDRICAL PIN that aligns the housing section.

Symptoms of Failure

• Transmission fluid leaking from the fill tube area – A worn or cracked filler nozzle allows oil to seep past the O-ring seal, leaving puddles under the vehicle. Search query: “ZF WG210 transmission oil leak at filler neck”.
• Hard shifting or delayed engagement – Insufficient fluid volume due to nozzle leakage starves the hydraulic system, causing gear slipping. Search query: “WG210 transmission slipping after fluid top-up”.
• Foaming or aerated transmission fluid – A damaged nozzle can introduce air into the oil stream, leading to erratic pressure and overheating. Search query: “foaming transmission fluid ZF WG200”.
• Difficulty filling or overfilling during service – A deformed nozzle prevents proper dipstick or funnel seating, causing inaccurate fluid levels. Search query: “hard to fill ZF WG210 transmission fluid”.

Technical Specifications

Compatibility

This filler nozzle is primarily designed for the ZF WG210 series transmissions. It is also compatible with the WG180, WG200, and WG211 models due to shared housing architecture. Always verify the housing front section part number; the 4657201161: HOUS.FRONT SECT must match the nozzle’s mounting flange. For secure installation, use the 0636115293: 螺栓 (bolt) specified for this assembly. The nozzle is not backward-compatible with older ZF 4HP series units.

Related Components