Wacker Neuson 5000156515 Adjusting Spring

The Wacker Neuson is a genuine OEM Adjusting Spring designed for a broad range of Wacker Neuson equipment, including CT36 and CT48 walk-behind concrete power trowels, VP and WP single-direction vibratory plate compactors, PT2 and PT3 centrifugal trash pumps, BPU reversible vibratory plates, BFS floor saws, and select dewatering and diaphragm pump models. As a direct factory replacement, part matches the original specification exactly, ensuring it seats, tensions, and functions just as the production part does. This spring is a common service item across multiple Wacker Neuson product families, making it a smart stocking choice for dealers, rental fleets, and contractors running mixed equipment. Confirm your model number against the fitment list before ordering to ensure correct application.

Key Features

• Genuine OEM Spring Rate: — Manufactured to the original tension and load specification, so the spring delivers the same resistance and travel as the part it replaces — critical for consistent throttle, carburetor, or control response depending on the application.
• Drop-In Replacement: — Engineered to the same hook style, wire diameter, and free length as the original, allowing straightforward installation without modification to mounting points or adjacent hardware.
• Broad Multi-Family Fitment: — A single part number covers CT36 and CT48 concrete trowels, VP1135R through VP2050 and WP1540/WP1550 vibratory plates, PT2/PT3 trash pumps, BPU reversible plates, PDT/PDI diaphragm pumps, PG dewatering pumps, BFS floor saws, and select generator and demolition set models.
• Consistent Control and Throttle Response: — A worn or fatigued adjusting spring causes erratic engine speed, sluggish throttle return, or loss of governor authority. A fresh OEM spring restores crisp, predictable control across the operating range.
• Corrosion-Resistant Construction: — Built to withstand the outdoor, high-vibration environments typical of compaction, pump, and saw applications, where moisture, debris, and constant mechanical cycling accelerate wear on spring components.

An adjusting spring in small engine and mechanical control systems acts as a tensioning element that holds a lever, linkage, or governor arm under a calibrated load. On concrete trowels and vibratory plates, it is commonly part of the throttle or governor linkage, keeping the control in the correct position under load and returning it reliably when input is released. On pumps and saws, it may serve a similar role in the fuel system or choke assembly. When the spring stretches, loses tension, or breaks, the result is unresponsive controls, hunting engine speed, or an inability to hold the correct operating RPM — all of which reduce productivity and can accelerate wear on other engine 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.