Description
Overview:
The NGK CPR7EA-9 Spark Plug (Stock No. 3901, MPN 3901) is an OEM-grade ignition component for petrol engines in ATVs, utility vehicles, and similar machinery. Built with a durable ceramic insulator, a nickel alloy electrode and a corrosion‐resistant steel shell, it delivers a consistent spark to ignite the air-fuel mix for smooth starting and reliable running. The 19 mm (0.75 in) thread reach ensures correct seating in compatible cylinder heads. Commonly used in Yamaha off‐road machines such as the YFM700 Grizzly Fi and YXM700PE Viking, it is suitable for routine servicing or as a direct replacement where CPR7EA-9 is specified. Sold individually, it helps maintain engine efficiency, throttle response and dependable performance under regular working conditions.
Key Features:
- OEM-grade NGK quality for consistent ignition and long service life
- 19 mm (0.75 in) thread reach for correct fitment and heat transfer
- Built‐in resistor (NGK "R") to reduce electrical interference with onboard electronics
- Durable nickel alloy centre electrode and robust ceramic insulator
- Corrosion‐resistant plated shell to aid removal and resist seizing
- Factory‐set gap of 0.9 mm (0.035 in) typical for NGK "‐9" specification
- Stable idle and dependable cold starts in varied UK weather
- Suitable for regular service intervals; replaces like‐for‐like CPR7EA-9
- Sold individually to match single‐cylinder and multi‐cylinder needs
- Widely used across ATV/UTV applications where CPR7EA-9 is specified
Typical Applications:
Ideal for routine maintenance of Yamaha ATVs and side‐by‐sides, farm and estate utility vehicles, and similar petrol‐powered machines. Supports reliable starting, smooth idling and clean combustion under everyday use, from trail work and yard duties to light towing and site support.
Also known as:
Spark plug, sparkplug, ignition plug, engine plug, ignition spark plug, NGK 3901 plug, CPR7EA9 plug.
Fits Models:
YFM700 Grizzly Fi
YFM700GrizzlyFi
YXM700PE Viking
YXM700PEViking
YXR70FX Rhino Fi
YXR70FXRhinoFi
Alternate Part Numbers:
3901
Product Specifications
| L&S Part No. | CPR7EA-9 |
|---|---|
| Manufacturer | NGK |
| OEM No. | 3901 |
| Unit of Sale | 1 |
| Applications | YFM700 Grizzly Fi, YFM700GrizzlyFi, YXM700PE Viking, YXM700PEViking, YXR70FX Rhino Fi, YXR70FXRhinoFi |
| Machine Type | All Terrain Vehicles |
