The Multiquip 9807956155 Spark Plug W20EPR-U11 GX340 HC- is a genuine OEM spark plug designed for GX340-powered Multiquip equipment. This is the factory-specified plug for GX340 engines, ensuring the correct heat range, electrode gap, and thread specification for your application. Sourced directly through Multiquip's OEM supply chain, part number 9807956155 delivers the consistent ignition performance your GX340 engine was engineered to run on. Confirm your engine model before ordering to ensure a correct match.
Key Features
- Correct Heat Range for GX340 Engines — The W20EPR-U11 specification matches the thermal demands of the Honda GX340 engine, preventing fouling at low loads and pre-ignition under heavy demand.
- Genuine OEM Component — Supplied as a genuine Multiquip OEM part, meaning this plug meets the exact ignition specification set for GX340-powered equipment — not an approximation.
- Direct-Fit Installation — Matches the thread pitch, reach, and hex size of the original plug, dropping straight into the cylinder head with no rethreading or adapter required.
- GX340 Engine Fitment — Confirmed for GX340-powered Multiquip equipment; cross-reference your engine model code before ordering to verify compatibility.
- Consistent Cold-Start and Full-Load Performance — A fresh, correctly specified plug supports clean ignition from cold start through peak load, maintaining smooth power delivery and fuel efficiency.
- Fuel System Safety Relevance — A worn or incorrectly specified plug can cause misfires, raw fuel passing into the exhaust, and potential backfire risk — replacing on schedule with the correct OEM spec plug keeps the ignition system operating as designed.
A spark plug ignites the compressed air-fuel mixture inside the engine cylinder, triggering the combustion stroke that drives the engine. The W20EPR-U11 designation identifies a specific heat range and electrode construction suited to the GX340 engine's compression ratio and operating temperatures. When a spark plug wears out, the electrode gap widens, voltage demand increases, and ignition becomes inconsistent — leading to hard starting, rough running, elevated fuel consumption, and potential damage to the ignition coil over time. Replacing the plug with the correct OEM specification part, such as Multiquip 9807956155, restores clean, reliable ignition and protects the broader ignition system.
Part Details
| Part Number | 9807956155 |
|---|---|
| Brand | Multiquip |
| Part Type | Genuine OEM |
| Description | Spark Plug W20EPR-U11 GX340 HC-1870328 |
Compatibility & Fitment
| Name | Model |
|---|---|
| GX340 | GX340 |
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.
