Champion Spark Plug - CJ8Y

Overview

• Manufacturer: Champion Spark Plugs, a long-established brand in ignition components for small engines.
• Product: CJ8Y spark plug — a copper-core ignition plug designed for small gasoline engines used in outdoor power equipment.
• Typical applications: compatible with lawn mowers, garden tools, portable generators, and other compact engines that specify CJ8Y or a cross-reference. Cross-references include NGK BPM6A and RCJ8Y.

Key Features

• Part Number: CJ8Y.
• Type of machine suitable for: small gas engines found in lawn and garden equipment, portable generators, and similar outdoor power tools.
• Installation tips: follow standard spark plug procedures: clean threads, hand-tighten to avoid cross-threading, then torque per engine/machine specifications. If gap specifications are provided by the retailer or engine manual, set accordingly before operation.
• Construction details: copper-based design commonly used for reliable ignition in small engines.
• Specifiable gap (reference): typical fill gap range observed in retailer data is approximately 0.0236–0.0276 inches.

Compatibility

• Suitable machine models: engines that require CJ8Y or its cross-references; widely used in various brands of small engines and outdoor equipment.
• Alternative part numbers / cross references: RCJ8Y, NGK BPM6A (cross reference), and related equivalents such as CJ8Y cross-refs listed in cross-reference catalogs. Also cross-referenced to 848-series plugs in some listings.