Wacker Neuson 5000182778 Idle Spring

The Wacker Neuson is a genuine OEM Idle Spring designed for the BS50-2, BS50-2i, BS60-2, BS60-2i, BS70-2, BS70-2i, BS50-4s, BS60-4s, BS65-V rammer series, along with select BH-series breakers and MS54 rammers. Sourced directly from Wacker Neuson, this part carries the same specification as the component installed at the factory, so you can trust the fit when it counts. It covers an exceptionally broad range of two-cycle, oil-injected, and four-stroke vibratory rammer configurations — including EU, high-altitude, and BG Bau Approved variants — making it a versatile stock item for dealers and service technicians alike. Verify your model and serial number against the fitment list before ordering to confirm compatibility.

Key Features

• Correct Tension Spec — Manufactured to the exact spring rate required to hold a stable idle on Wacker Neuson rammer engines, preventing hunting or stalling at low throttle.
• Genuine OEM Part — Supplied by Wacker Neuson under part number 5000182778; identical in material and geometry to the spring the machine left the factory with.
• Drop-In Carburetor Fit — Engineered to seat directly in the carburetor idle circuit without modification, retaining original throttle response characteristics.
• Broad Model Coverage — Fits BS50-2, BS50-2i, BS60-2, BS60-2i, BS70-2, BS70-2i, BS50-4s, BS60-4s, BS65-V, select BH-series breakers, and more — across standard, EU, high-altitude, and BG Bau Approved configurations.
• Consistent Low-Speed Operation — A correctly tensioned idle spring keeps the throttle plate responsive and prevents erratic engine behavior that can affect compaction output and operator control.

The idle spring sits within the carburetor and maintains the correct resting position of the throttle slide or butterfly at low engine speeds. It provides the resistance that holds the throttle at a calibrated idle setting, ensuring the engine runs smoothly when the operator is not applying full throttle. When this spring weakens, stretches, or breaks, the engine may idle erratically, surge, stall, or fail to return to a stable low-speed condition — all of which interrupt compaction work and can place extra strain on other carburetor components.

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.