Multiquip 9807955855 Spark Plug (W16EPRU ND)

The Multiquip 9807955855 is a genuine OEM Spark Plug (W16EPRU ND) designed for a wide range of Multiquip, Whiteman, Essick, and STOW equipment across multiple product families. This spark plug is the correct OEM-specified ignition component for generators such as the GA-6H, GA-6HE, GA6HR, and GA3.6H series, plate compactors including the MVH120VGH, MVH150VGH, and MVH-200GH, arc welders in the GAW180HE family, centrifugal and trash pumps including QP-204H, QP2TH, and QP3TH, concrete and mortar mixers such as the EM120S, EM120P, WM120SH, and MC12PH, walk-behind trowels including the PRO46 and BA-Series, and flat and masonry saws across the SP1 and MS120 families. Sourced directly from Multiquip, part number 9807955855 ensures the correct heat range, thread pitch, and electrode configuration for every compatible machine. Installing the right spark plug matters — OEM specification protects ignition timing, fuel efficiency, and engine longevity across all fitted models.

Key Features

• Correct Heat Range for OEM Ignition Performance — The W16EPRU ND specification matches the thermal rating required by Honda and compatible gasoline engines across this broad equipment range, ensuring clean combustion at operating temperature.
• Genuine OEM Component — Sourced directly from Multiquip, this spark plug meets the exact electrode gap, thread pitch, and resistor specification called out in OEM service documentation — no substitution guesswork.
• Cross-Family Fitment — A single part number covers generators (GA3.6H, GA-6H, GA6HR), plate compactors (MVH120VGH, MVH150VGH, MVH-200GH), arc welders (GAW180HE), pumps (QP-204H, QP2TH), mixers (EM120S, WM120SH), trowels (PRO46, BA-Series), and saws (SP113H18, MS120H13).
• Protects Engine Efficiency — A worn or fouled spark plug causes hard starts, misfires, and elevated fuel consumption. Replacing with the correct OEM plug restores clean ignition and full rated power output.
• Fuel System Safety — Correct electrode specification prevents pre-ignition and detonation in gasoline engines, reducing the risk of engine damage or uncontrolled combustion events on the jobsite.
• Drop-In Service Replacement — the part installs directly into compatible Honda-powered equipment with no modification — a routine service item that keeps engines running at spec between scheduled maintenance intervals.

A spark plug ignites the air-fuel mixture inside a gasoline engine's combustion chamber, triggering the power stroke that drives the engine. Each plug is rated to a specific heat range — meaning how quickly it dissipates heat from the electrode — and using the wrong rating causes fouling, pre-ignition, or detonation that can damage pistons and cylinder walls over time. When a spark plug wears out or becomes fouled with carbon deposits, the engine becomes difficult to start, runs roughly, loses power, and burns more fuel than it should. Replacing it on schedule with the OEM-specified part, such as the Multiquip 9807955855, is one of the most cost-effective ways to maintain engine health across any Honda-powered piece of equipment in the Multiquip lineup.

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.