Description
Overview:
The Genuine NGK DPR8EA-9 Spark Plug (MPN 4929) is a high-quality resistor spark plug for petrol engines used in all-terrain and utility vehicles. Built with a robust metal shell and a durable ceramic insulator, it delivers a clean, consistent spark to ignite the air-fuel mixture reliably. It is a direct replacement part for popular ATV models such as the Honda TRX250 EX Sportrax and Yamaha YFM660R Raptor, helping to maintain smooth starting, steady idling, and dependable performance under load. As a genuine NGK component, it offers precise fit and stable operation over regular service intervals. The DPR8EA-9 is factory set to a 0.9 mm gap, and is sold individually, making it a straightforward choice for routine maintenance or resolving misfire and hard-start issues.
Key Features:
- Genuine NGK part for assured quality, fit, and consistent ignition performance
- Resistor type design helps suppress electrical interference with onboard electronics
- Durable construction with corrosion-resistant shell and hard-wearing insulator
- Stable spark for easier cold starts, smoother running, and reliable throttle response
- Factory-set 0.9 mm gap for quick installation (check vehicle specifications before adjustment)
- Direct-fit replacement on listed models; no modifications required
- Suitable for routine servicing to maintain fuel efficiency and engine health
- Proven reliability in ATV use, including trail, farm, and utility duties
Typical Applications:
Used in ATVs and side-by-sides for leisure, farm, estate, and light commercial tasks. Ideal when refreshing scheduled service items or addressing issues such as rough idle, misfires, or hard starting. Suits engines that require a resistor-type plug for stable operation and reduced interference with ignition and electrical systems.
Also known as:
Ignition plug, engine spark plug, spark igniter, resistor spark plug, ATV spark plug, petrol engine plug.
Fits Models:
KLF400 B, KLF400B, KVF360, KVF400, TRX250 EX Sportrax, TRX250EXSportrax, TRX300FW-V, TRX400AT Fourtrax, TRX400ATFourtrax, YFM600FWA Grizzly, YFM600FWAGrizzly, YFM660FWA Grizzly, YFM660FWAGrizzly, YFM660R Raptor, YFM660RRaptor, YXR660 Rhino, YXR660Rhino
Alternate Part Numbers:
ORDPR8EA-9, ORDPR8EA9, DPR8EA9, 4929
Product Specifications
| L&S Part No. | DPR8EA-9 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | NGK |
| OEM No. | 4929 |
| Unit of Sale | 1 |
| Machine Type | All Terrain Vehicles |
| Fits Brands | NGK |
| Key Features | - Direct replacement for Honda TRX250 EX and Yamaha YFM660R - Resistor design reduces electrical interference - Factory-set 0.9 mm gap for easy installation - Durable metal shell and ceramic insulator - Suitable for ATVs and utility vehicles |
