Wacker Neuson 5000150392 St-12 Orfs-12 Orb Fitting

The Wacker Neuson is a genuine OEM St-12 Orfs-12 Orb Fitting designed for the WB16 series Power Buggy. As a direct OEM replacement, this fitting is sourced and manufactured to the same specifications as the original component installed at the factory. It is confirmed compatible with a wide range of WB16 Power Buggy configurations, including the WB16AFS, WB16AD, WB16ADF, WB16ADE, WB16ADS, WB16ADEF, WB16ADES, WB16ADFS, WB16AEFS, and WB16ADEFS. Using part number ensures you are getting the correct fitting for your machine without the guesswork.

Key Features

• OEM Thread Integrity — Manufactured to exact ORFS and ORB thread form specifications, ensuring leak-free sealing at the hydraulic connection point.
• Drop-In Hydraulic Connection — Designed to connect directly into the existing hydraulic port without reworking fittings, lines, or adapters.
• Broad WB16 Coverage — Fits ten WB16 Power Buggy variants, including AFS, AD, ADF, ADE, ADS, ADEF, ADES, ADFS, AEFS, and ADEFS configurations.
• Hydraulic System Integrity — A correctly seated fitting maintains proper hydraulic pressure across the system; a failed or worn fitting can result in fluid loss, pressure drop, and loss of drive or dumping function.
• Genuine Wacker Neuson Part — Supplied as an authentic OEM component under part number 5000150392, backed by Wacker Neuson's parts program.

An ORFS (O-Ring Face Seal) to ORB (O-Ring Boss) fitting is a hydraulic adapter used to connect two sections of a hydraulic circuit that use different port and thread standards. The ORFS end creates a metal-to-metal face seal backed by an O-ring, while the ORB end threads into a boss port and seals via a seated O-ring at the base of the thread. Together, they provide a robust, vibration-resistant hydraulic connection that prevents fluid leaks under pressure. When this fitting is damaged, cross-threaded, or missing its O-ring seal, the hydraulic circuit can lose pressure or leak fluid, directly affecting the buggy's drive performance and dump cylinder operation.

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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Every part is verified against the manufacturer's part number before it ships, so what you order is what arrives. We carry parts from leading OEM brands and our own DHS Quality Parts line of professional aftermarket components. Need help finding the right part? Our team is available to confirm compatibility whenever you need it. Orders are processed fast to keep your jobs on track. We don't just sell parts. We keep you jobsite ready.

Questions? Contact our team at [email protected] or 866-611-9369 — DHS Equipment is here to help you maintain peak performance.