Multiquip 9807956854 Spark Plug W20EP-U (Denso)

The Multiquip 9807956854 Spark Plug W20EP-U (Denso) is a genuine OEM ignition component designed for MVH and MVC series plate compactors, including the MVH-120GH, MVH-150GH, MVH-150D, MVH-402GHB, and MVC77. As a direct OEM part, the part matches the exact heat range, thread pitch, and electrode configuration specified for these machines, ensuring consistent ignition performance right out of the box. Sourced directly through Multiquip's authorized parts network, this Denso spark plug is the same component installed at the factory — no guesswork on compatibility.

Key Features

• Correct Heat Range for Compactor Engines — The W20EP-U designation specifies an exact Denso heat range rating engineered for the engine displacement and operating temperatures of MVH and MVC series plate compactors.
• Genuine OEM Denso Ignition Component — Manufactured by Denso to Multiquip's OEM specification, delivering the electrode gap and insulator grade the engine was designed around.
• Broad MVH and MVC Series Coverage — Confirmed fitment across MVH-120GH, MVH-150GH, MVH-150D, MVH-402GHB, and MVC77 plate compactors under part number 9807956854.
• Consistent Cold-Start and Full-Throttle Performance — A correctly specified spark plug maintains strong ignition across the full RPM range, supporting the sustained centrifugal force output that drives effective soil compaction.
• Direct Drop-In Installation — Thread size, reach, and hex dimensions are an exact match to the original plug, allowing straightforward replacement during routine engine servicing.

A spark plug is responsible for igniting the air-fuel mixture inside the engine cylinder, providing the combustion stroke that powers the machine. In a plate compactor, consistent ignition directly affects engine RPM stability, which in turn controls the vibration frequency and compaction force delivered through the plate. A worn or fouled spark plug causes misfires, hard starting, rough idle, and reduced compaction output — symptoms that are easy to overlook but degrade productivity on the job. Replacing the plug at recommended service intervals with the correct OEM-specified part keeps combustion clean and the engine running at the output level the machine was built to deliver.

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.