Wacker Neuson 5000070974 Spark Plug Terminal Cap

The Wacker Neuson Spark Plug Terminal Cap is a genuine OEM component designed for a wide range of Wacker Neuson equipment, including CT walk-behind and ride-on concrete trowels, GP and GPS portable generators, PT centrifugal trash pumps, BPU and BPS reversible and single-direction vibratory plates, BFS floor saws, WB power buggies, and vibratory truss screed power sections. Sourced directly from Wacker Neuson, part matches the original specification for a drop-in replacement with no guesswork. This terminal cap serves an extensive cross-section of the Wacker Neuson lineup, making it a practical stocking item for dealers, rental fleets, and contractors running multiple machine types. Always confirm your model and serial number against the fitment list before ordering.

Key Features

• Genuine OEM Ignition Integrity — Sourced directly from Wacker Neuson, this terminal cap maintains the correct internal resistance and contact tension required for consistent spark delivery across all listed engine applications.
• Direct Connector Compatibility — Engineered to snap onto the spark plug post and ignition wire end exactly as the original, ensuring a secure, rattle-free connection without adapters or modifications.
• Broad Cross-Family Fitment — A single part number covers CT concrete trowels (30in, 36in, 48in walk-behind and ride-on), GP/GPS portable generators, PT centrifugal trash pumps, BPU/BPS vibratory plates, BFS floor saws, WB power buggies, and more.
• Protects Ignition System Efficiency — A worn or cracked terminal cap allows voltage to arc or leak, causing misfires, hard starts, and rough running. A fresh cap restores clean spark transfer and smooth engine operation.
• Electrical Safety Compliance — The OEM cap is rated for the ignition voltage of these engines; using an incorrect or degraded cap risks uncontrolled arcing near fuel systems, making genuine-spec replacement the correct choice.

The spark plug terminal cap is the connector that joins the high-voltage ignition wire to the top of the spark plug. It seals the connection against moisture and vibration while channeling the ignition coil's voltage precisely to the plug electrode so combustion fires reliably on every stroke. Over time, the cap's internal spring contact can corrode, its boot can crack from heat cycling, or the insulating body can develop micro-fractures that allow voltage to escape — all of which show up as misfires, rough idling, or a machine that cranks but won't start. Replacing the 5000070974 restores a clean, low-resistance path from coil to plug and is a straightforward first step when diagnosing any ignition-related starting or running issue on the listed equipment.

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.