Wacker Neuson 5000203788 Spark Plug

The Wacker Neuson Spark Plug is a genuine OEM component designed for a wide range of Wacker Neuson vibratory plates, forward plates, and floor saws, including the BPU, VP, BFS, WP, and BPS series. Sourced directly from Wacker Neuson, this spark plug is built to the exact specification of the original part, ensuring correct heat range, thread pitch, and electrode gap for the engines used across these machine families. It fits an extensive lineup of models including the BPU 2540A, BPU 3050A, BPU 3750Ats, VP1135A, VP1340A, VP1550A, VP2050A, WP1540A, WP1550A, BFS 940, BFS 1345, BFS 1350, BPS1030, BPS1135, BPS1340, BPS1550, and BPS2050 series. Genuine OEM parts carry the full Wacker Neuson part number verification, so you can be confident this plug seats and performs exactly as the factory intended.

Key Features

• Correct Heat Range for These Engines — Matched to the combustion temperatures of the Honda and Wacker Neuson engines used across the BPU, VP, WP, BFS, and BPS series, preventing pre-ignition and fouling.
• Genuine OEM Part — Supplied by Wacker Neuson under part number 5000203788; same electrode material, insulator grade, and thread specification as the plug installed at the factory.
• Drop-In Replacement — Correct thread size and reach for direct installation; no gapping adjustments or adapter fittings required on supported models.
• Broad Model Coverage — A single part number covers vibratory plates (VP, BPU, BPS series), reversible plates (WP series), and petrol floor saws (BFS series), making it a practical stock item for mixed Wacker Neuson fleets.
• Protects Engine Starting and Power Output — A worn or fouled spark plug causes hard starting, misfires, and loss of compaction force or cutting speed; replacing it restores consistent ignition and full engine output.
• Fuel System Safety Compliance — Correct spark plug specification prevents unburned fuel accumulation in the combustion chamber, reducing the risk of backfiring on petrol-powered compaction and cutting equipment.

A spark plug ignites the air-fuel mixture inside the engine's combustion chamber, producing the controlled explosion that drives the piston and powers the machine. On compaction plates and floor saws, a healthy spark plug is critical to achieving consistent engine RPM, which directly affects compaction performance and blade speed. When a spark plug wears out or becomes fouled with carbon deposits, the engine becomes difficult to start, runs roughly, or loses power — symptoms that are easy to misdiagnose as carburetor or fuel system issues. Replacing the spark plug at regular service intervals is one of the simplest and most cost-effective ways to keep a petrol engine running at its rated output.

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.