Triumph & Norton Champion N9YC Spark Plug BP6ES
The Champion N9YC spark plug must be fitted with the correct heat range to optimize efficient combustion and protect the engine from overheating. The Champion N9YC is a relatively hot spark plug with a comparable heat range to the NGK B6ES.
This spark plug is appropriate for 1978-1982 Triumph Models T140E and T140D along with 1972-1975 Norton Commando 750s.
The Champion N9YC has 14mm threads, 19mm thread reach and features a projected tip configuration. The heat range is similar to the NGK B6ES spark plug and is suitable for use on many British twin-cylinder motorcycle engines.
The spark plug fires the fuel mixture charge to create combustion in the combustion chamber. Spark plugs must be clean and free of heavy carbon and oil deposits to provide a strong spark.
The Champion N9YC spark plug is threaded into the cylinder head. Sold individually and multiple quantities for savings.
Please note: Due the nature of the product, we unfortunately do not accept returns on bearings, service tools or electrical components. Please be confident about your purchase before ordering. If you have questions, please contact us.
The product images shown are for illustrative purposes only and may not be an exact representation of the product received. Manufacturers occasionally make minor cosmetic changes to items, such as color, finish, label, or design. These changes do not impact the item’s function or compatibility. Please contact us if you have specific concerns regarding appearance.
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Frequently Asked Questions
What is the NGK equivalent of a Champion N9YC spark plug?
The Bonneville Shop lists the NGK BP6ES as the equivalent of the Champion N9YC spark plug. Before substituting plugs, confirm the application for your motorcycle’s model, year, and ignition system. Matching heat range alone does not establish complete compatibility; plug dimensions and firing-tip configuration also matter. See the Champion N9YC product listing for the listed replacement reference and specifications.
Which Triumph motorcycles use the Champion N9YC spark plug?
The Bonneville Shop’s product description lists the Champion N9YC for 1978–1982 Triumph T140E and T140D motorcycles. Confirm the specification in your motorcycle’s workshop manual before ordering, particularly if the engine or ignition system has been modified. For help checking your application, contact The Bonneville Shop with your model, year, and ignition details.
Does the Champion N9YC fit a Norton Commando 750 or 850?
The product description specifically lists 1972–1975 Norton Commando 750 models, while the product’s fitment metadata also mentions Commando 850 models. Because these sections differ, confirm 850 compatibility before purchasing rather than assuming every Commando uses the same plug. Contact The Bonneville Shop with your motorcycle’s exact year, engine size, and ignition setup for application assistance.
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