Wacker Neuson 5000080558 Straight Thread Union Hydraulic Fitting

The Wacker Neuson is a genuine OEM Straight Thread Union Hydraulic Fitting designed for the RTLx-SC3, RTKx-SC3, RTL82-SC3, and RTK82-SC3 remote-controlled trench roller series. As a direct factory replacement, this fitting is manufactured to the exact thread form, port dimensions, and pressure rating specified for the hydraulic circuit in these machines. Fitment extends across a wide range of RTLx-SC3 and RTKx-SC3 configurations, including Compatec-equipped variants, covering the full SC3 trench roller lineup. Having the correct OEM part on hand keeps the hydraulic system sealed and operating at the pressures these rollers demand in trench compaction work.

Key Features

• Genuine OEM Thread Integrity — Manufactured to the exact straight thread profile specified for the SC3 hydraulic circuit, ensuring a leak-free metal-to-metal seat at installation.
• Direct Hydraulic Line Replacement — Replaces the original union fitting in the hydraulic plumbing without reworking adjacent lines or adapters.
• Broad SC3 Trench Roller Coverage — Fits RTLx-SC3, RTKx-SC3, RTL82-SC3, and RTK82-SC3 trench rollers, including standard and Compatec-equipped builds across multiple color and regional configurations.
• Hydraulic Pressure Retention — A correctly seated union fitting maintains full system pressure to the drum drive and vibration circuits; a worn or cross-threaded fitting causes pressure loss and reduced compaction output.
• Fuel and Fluid System Safety — Hydraulic fittings that leak or weep under pressure create a fire and slip hazard on the jobsite; using the correct OEM fitting eliminates that risk.

A straight thread union hydraulic fitting creates a sealed, pressure-rated junction between two hydraulic lines or ports within the machine's hydraulic circuit. Unlike tapered pipe threads that rely on thread deformation to seal, straight thread fittings seal against a machined seat or O-ring face, producing a more consistent and durable connection under dynamic pressure cycles. When this fitting is damaged, cross-threaded, or leaking, hydraulic fluid escapes the circuit, causing pressure drop that directly reduces the drive force and vibratory output of the roller drums — and leaving fluid on the ground that creates both an environmental concern and a traction hazard for the operator.

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.