Description
Overview:
The Genuine NGK CR8HS Spark Plug (MPN 7423) is a high-quality ignition component for small-capacity engines found in motorcycles, ATVs and performance leisure machines. Built by NGK, it uses a robust steel shell with a corrosion-resistant finish, a durable nickel-alloy centre electrode, and a high-strength ceramic insulator for dependable spark and heat control. As an NGK "R" type, it includes an internal resistor to reduce electrical interference with onboard electronics. It helps deliver clean ignition, stable idling and reliable starting under varied loads. Suitable for machines such as the Apache RLX 250 S and the Quadzilla R250E Stinger, it is a straightforward replacement for routine servicing. This is a Genuine NGK part and is sold individually (quantity 1).
Key Features:
- Genuine NGK component for assured quality and compatibility
- Resistor design helps suppress RFI/EMI for stable electronics performance
- Nickel-alloy electrode and copper core construction for consistent spark and heat dissipation
- Strong ceramic insulator resists fouling and supports reliable cold and hot starts
- Corrosion-resistant plated shell aids long service life in wet and dirty conditions
- Precision manufacturing supports consistent performance across service intervals
- Suitable for a wide range of small engines used in bikes, quads and light machinery
- Straightforward to fit and remove with standard tooling
- Sold individually so you can replace only what you need
Typical Applications:
Used in small single- and twin-cylinder petrol engines where stable ignition and easy starting are essential. Common in 250 cc quads, light off‐road motorcycles, pit bikes, buggies and similar leisure or utility machines. Also applicable to selected small engines in garden and site equipment when specified by the manufacturer.
Also known as:
Often referred to as an ignition plug, spark igniter, engine plug or resistor plug. Some users may describe it as a small-engine spark unit or NGK CR-series plug for compact motorcycle and ATV engines.
Fits Models:
Apache RLX 250 S, Apache RLX 250 SX, ApacheRLX250S, ApacheRLX250SX, Quadzilla R250E Stinger
Alternate Part Numbers:
7423
Product Specifications
| L&S Part No. | CR8HS |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | NGK |
| OEM No. | 7423 |
| Unit of Sale | 1 |
| Machine Type | All Terrain Vehicles |
| Key Features | - Genuine NGK CR8HS spark plug for small-capacity engines - Nickel-alloy electrode ensures consistent spark and heat dissipation - Internal resistor reduces electrical interference with electronics - Corrosion-resistant shell for long service life in harsh conditions - Compatible with Apache RLX 250 S and Quadzilla R250E Stinger models |


