Wacker Neuson 5000163475 O6NPT Straight Barb

The Wacker Neuson O6NPT Straight Barb is a genuine OEM hydraulic hose fitting designed for RD12 and RD16 series tandem rollers, including the RD12-90, RD12A-90, RD16-90, and RD16-100. As a factory-sourced component, the meets the exact material and dimensional standards specified for these machines, ensuring a secure, leak-free connection in the hydraulic circuit. This straight barb fitting is a direct drop-in replacement that restores proper fluid routing without the need for adapters or modifications. Confirm your model number against the fitment list before ordering to ensure this is the correct fitting for your machine.

Key Features

• Genuine OEM Sealing Integrity — Factory-sourced barb fitting machined to the exact thread form and barb geometry specified for Wacker Neuson hydraulic circuits, maintaining rated system pressure without seepage or weeping at the connection point.
• Straight Barb Configuration — The inline straight profile allows the hose to seat flush and clamp down evenly, which is critical in tight hydraulic routing on tandem roller frames where angled fittings would create interference.
• Broad RD-Series Compatibility — Confirmed fitment across RD12-90, RD12A-90, RD16-90, and RD16-100 tandem rollers, covering both standard and foldable ROPS configurations as well as hydrostatic drive variants.
• Hydraulic Circuit Reliability — A correctly seated barb fitting maintains consistent hydraulic flow to the drum drive and vibration systems; a leaking or damaged fitting can cause pressure drop, erratic drum behavior, or system contamination.
• Fuel and Fluid System Safety — Hydraulic fittings that are improperly sized or worn can spray fluid under pressure, creating a fire and slip hazard on the worksite; using the correct OEM fitting eliminates this risk.

A barb fitting is a small but essential hydraulic connector that joins a hose to a port by gripping the inner wall of the hose as a clamp is tightened over the barbed shank. The O6NPT thread on this fitting mates directly with the corresponding port on the machine's hydraulic circuit, creating a sealed connection that holds under the operating pressures generated by the roller's hydrostatic drive and vibratory system. When a barb fitting corrodes, cracks, or strips, the resulting leak reduces system pressure and can introduce air or contaminants into the hydraulic circuit, leading to inconsistent drum vibration or loss of drive function.

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.

Why Buy From DHS Equipment

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.