Wacker Neuson 5100057978 45-Degree Fitting, 1/2 Barb x 3/8 Male NPT

The Wacker Neuson 45-Degree Fitting, 1/2 Barb x 3/8 Male NPT is a genuine OEM component designed for the E3000. Sourced directly from Wacker Neuson, this fitting matches the original specification for thread size, barb diameter, and angle — ensuring a proper, leak-free connection right out of the box. If you're servicing the fluid routing on your E3000, is the correct OEM part to restore the system to original condition.

Key Features

• OEM Thread and Barb Integrity — Machined to the original 1/2 barb and 3/8 male NPT specification, so the fitting seals correctly under operating pressure without thread mismatch or barb slippage.
• Angled Routing by Design — The 45-degree geometry follows the original hose routing path on the E3000, allowing hose connections to be made without bending, kinking, or stressing the line.
• Direct OEM Swap — Threaded and sized to the original port, this fitting installs into the same NPT-tapped port as the factory part with no rework required on the mating connection.
• E3000 Confirmed Fitment — Verified for the Wacker Neuson E3000, giving you confidence that part number 5100057978 is the correct replacement for this machine.
• Fuel System Integrity — A correctly seated fitting prevents fluid leaks at the hose junction, maintaining safe and stable system pressure. A cracked or cross-threaded fitting risks fluid loss and potential fire hazard in fuel-side applications.

A 45-degree barbed NPT fitting is a directional connector used to transition a fluid hose from a threaded port at an offset angle, allowing hose runs to follow tight routing paths without sharp bends. The barbed end grips the inside of a hose for a secure, clamp-ready connection, while the male NPT thread seals into a tapped port on the engine or fuel system housing. When this fitting cracks, corrodes, or strips at the thread, it creates a fluid leak at the source — leading to pressure loss, contamination, or a fire risk if the fitting is part of the fuel circuit. Replacing it with the correct OEM part restores a properly sealed connection and ensures the hose and port are not subjected to mismatched thread loads.

Part Details

Compatibility & Fitment

Verify Before You Order

Fitment is machine-number and revision-specific; always confirm your model and serial number against the fitment list.

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