Wacker Neuson 5000164346 ST 3/8-19 BSPP #8 ORFS Fitting

The Wacker Neuson is a genuine OEM ST 3/8-19 BSPP #8 ORFS Fitting designed for RD16-90 and RD16-100 series tandem vibratory rollers. As a direct OEM part, is manufactured to the exact thread form, port sizing, and sealing geometry specified for these machines — ensuring a leak-free connection in the hydraulic circuit. This fitting is confirmed compatible across multiple RD16-90 and RD16-100 configurations, including hydrostatic drive variants. When you need a hydraulic fitting you can trust to hold pressure and seal correctly the first time, sourcing the genuine Wacker Neuson part is the straightforward choice.

Key Features

• Correct Thread and Port Specification — Machined to the 3/8-19 BSPP male thread standard with an #8 ORFS (O-Ring Face Seal) port, matching the exact connection geometry of the original hydraulic circuit.
• Genuine OEM Component — Sourced directly from Wacker Neuson, this part carries the same material grade and dimensional tolerances as the fitting installed at the factory — critical for maintaining a sealed, high-pressure hydraulic connection.
• Broad RD16 Series Coverage — Fits multiple RD16-90 and RD16-100 tandem roller configurations, including standard and hydrostatic drive (IRH) variants across several machine builds.
• Leak-Free Hydraulic Integrity — The ORFS face-seal design eliminates the leakage risk associated with tapered or compression fittings under dynamic pressure; a worn or incorrect fitting in this location can cause hydraulic fluid loss and pressure drop across the drive or compaction circuit.
• Hydraulic System Safety — A correctly rated and properly seated hydraulic fitting is essential for maintaining system pressure within designed limits; substituting an incorrect thread form or port style risks fitting failure under load.

A hydraulic fitting like the 5000164346 serves as the threaded interface between hydraulic hose ends, tubes, or manifold ports within the roller's hydraulic system. The 3/8-19 BSPP male thread connects to the corresponding female port, while the #8 ORFS face-seal end uses a captured O-ring compressed against a flat seating surface to create a positive, leak-resistant seal even under sustained hydraulic pressure. When a fitting cracks, corrodes, or is cross-threaded, the result is hydraulic fluid loss, reduced circuit pressure, and potential loss of drive or vibratory function — making prompt replacement with the correct OEM part essential to keeping the roller operating at full capacity.

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.

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