Wacker Neuson 5000217491 Spark Plug Terminal Cap

The Wacker Neuson Spark Plug Terminal Cap is a genuine OEM component designed for a wide range of Wacker Neuson gasoline-powered equipment, including BFS floor saws, CT walk-behind concrete trowels, GP and GV portable generators, BPU reversible vibratory plate compactors, RD7 tandem rollers, and PT trash pumps. As a direct OEM replacement, this terminal cap is produced to the same specifications as the original part, ensuring a correct, secure fit on every compatible model. Verify your model number against the fitment list before ordering to confirm compatibility across this broad equipment range.

Key Features

• OEM-Matched Ignition Connection: — Manufactured to the exact dielectric and contact specifications of the original cap, maintaining the correct spark energy transfer from ignition wire to plug.
• Broad Cross-Family Compatibility: — Fits BFS floor saws, CT concrete trowels, GP/GV generators, BPU vibratory plates, RD7 tandem rollers, and PT trash pumps — a single part number across multiple Wacker Neuson gasoline engine platforms.
• Secure Snap-On Retention: — Designed to lock firmly onto the spark plug and ignition wire boot, preventing vibration-induced disconnection during operation on compaction and cutting equipment.
• Ignition System Integrity: — A worn or cracked terminal cap allows voltage to arc to ground rather than fire the plug, causing hard starts, misfires, and engine cut-out under load.
• Electrical Safety Compliance: — The insulating cap shields the live ignition terminal, reducing the risk of accidental contact with high-voltage spark energy during servicing or cap replacement.

The spark plug terminal cap is the insulated connector that joins the ignition lead to the top of the spark plug, sealing the high-voltage connection and directing the full spark energy into the plug electrode. It provides both electrical insulation and mechanical retention, keeping the ignition wire firmly seated on the plug even under the continuous vibration generated by compaction equipment, saw engines, and generator sets. When the cap cracks, corrodes, or loses its grip, voltage leaks away from the plug, resulting in weak sparks, inconsistent firing, difficult starting, and rough running — all of which stop work until the cap is replaced.

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.