Shop genuine Champion spark plugs and service parts for classic Triumph, Norton, and BSA motorcycles. Browse N2C, N3C, N4C, N5C, N6YC, and N9YC spark plugs, plus replacement plug caps and selected spin-on oil filters. Check each listing for motorcycle applications, heat range, and part-number references.
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Triumph BSA Norton Champion N6YC (NGK BP8ES Equivalent) Spark Plug(s) PN# TBS-N6YC
$11.87 – $28.54Price range: $11.87 through $28.54
Triumph BSA N2C Champion Spark Plug(s) PN# TBS-N2C
$12.15 – $31.97Price range: $12.15 through $31.97
Triumph Norton Champion N9YC (NGK BP6ES Equivalent) Spark Plug(s) PN# TBS-N9YC
$11.68 – $30.26Price range: $11.68 through $30.26
Triumph BSA N3C Champion Spark Plug(s) PN# TBS-N3C
$12.62 – $33.69Price range: $12.62 through $33.69
Triumph N5C Champion Spark Plug(s) PN# TBS-N5C
$11.85 – $30.88Price range: $11.85 through $30.88
Norton 750 850 Commando Triumph BSA Champion Brand Oil Filter(s) PN# 06-3371 C H101
$19.92 – $34.86Price range: $19.92 through $34.86
Triumph Norton Jaguar Champion 10 Ohm Resistor Plug Cap(s) PN# WCX600 WCX180
$20.80 – $36.58Price range: $20.80 through $36.58
Triumph BSA N4C Champion Spark Plug(s) PN# TBS-N4C
$11.66 – $30.18Price range: $11.66 through $30.18
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Champion Spark Plugs & Parts for Classic British Motorcycles
Shop genuine Champion spark plugs and selected service parts for classic Triumph, Norton, and BSA motorcycles at The Bonneville Shop. Our collection includes several Champion spark-plug types, replacement plug caps, and spin-on oil filters for specified applications. Whether you are gathering parts for routine maintenance or replacing worn ignition components, check each listing to find the correct part for your motorcycle.
A Long History in Spark-Plug Manufacturing
Champion traces its spark-plug heritage to 1907, giving the brand more than a century of experience in engine ignition components. Today, its range includes spark plugs and filtration products for numerous engine applications. For classic British motorcycle owners, our Champion collection brings together familiar plug designations and selected replacement service parts in one place.
Champion Spark Plugs for Triumph, Norton & BSA
Our selection includes Champion N2C, N3C, N4C, N5C, N6YC, and N9YC spark plugs, with individual listings identifying the intended motorcycle applications. The collection includes Triumph and BSA listings for the N2C, N3C, and N4C; a Triumph listing for the N5C; and selected Triumph, Norton, and BSA applications for the N6YC and N9YC.
These plug numbers are not interchangeable recommendations. Choose the plug specified for your motorcycle and engine configuration rather than selecting solely by brand or appearance. Champion recommends using the manufacturer-specified plug and heat range as the starting point for standard applications.championautoparts+1
Understanding Spark-Plug Heat Range
A spark plug’s heat range describes how readily it transfers heat away from its firing end—not how powerful its spark is. A colder plug dissipates heat more readily, while a hotter plug retains more heat at the firing end. The correct selection helps the plug operate hot enough to resist fouling without becoming excessively hot.championautoparts+1
Within a given Champion plug family, a higher number indicates a hotter heat range. That numbering should not be applied directly to another brand: NGK’s heat-range numbers run in the opposite direction. Use a documented application or cross-reference instead of matching numbers between brands.
Our listings identify the Champion N6YC as an NGK BP8ES equivalent and the N9YC as an NGK BP6ES equivalent. These references can help identify a replacement, but you should still confirm the required application and specifications before ordering.
Plug Design Matters Alongside Heat Range
Champion’s part numbers also identify construction features. The “Y” in a designation such as N6YC or N9YC indicates a projected firing-end design. This is a separate specification from heat range, so plugs with different letter suffixes should not be treated as equivalent simply because their numbers are similar.
When choosing a plug, confirm the specified thread size, reach, seat type, firing-end design, and heat range. For an engine that has been modified, use the engine builder’s requirements rather than assuming the original factory recommendation still applies.
Champion Spark-Plug Caps
Our Champion collection also includes replacement spark-plug caps, including listings under WC548/WC200 and WCX600/WCX180 references. Check the individual product details for fitment and electrical characteristics when replacing a cap or servicing an existing ignition setup.thebonnevilleshop
Use the specifications in the listing rather than choosing a cap by appearance alone.
Champion Oil Filters & Filter-Mount Packages
Champion products in this collection extend beyond ignition parts. We carry a Champion spin-on oil filter listed under 06-3371 C/H101, along with a Norton Commando-type filter-mount package supplied with a Champion filter. The listings also identify Triumph and BSA applications.
Check the product details against the filter housing or conversion fitted to your motorcycle. A filter listing with Triumph, Norton, and BSA references does not mean it fits every model from those manufacturers.
Find the Correct Champion Part
Browse our Champion products below for spark-plug numbers, motorcycle applications, plug-cap references, and oil-filter specifications. Start with your motorcycle’s service information and compare it with the individual listing before ordering.Champion Spark Plugs for Your Vintage British Motorcycle
Champion has a long history in the automotive industry, with over a century of experience in spark plug manufacturing. Over the years, they have built a reputation for producing reliable and high-quality spark plugs trusted by mechanics and motorists worldwide.
Durable:
Champion spark plugs are known for their durability and longevity. They are designed to withstand high temperatures and pressures within the engine’s combustion chamber, resulting in consistent performance over an extended period.
Compatibility:
The Bonneville Shop offers a catalog of spark plugs suitable for your vintage British motorcycle. Whether Triumph, Norton or BSA be sure to get the right heat range plug for your engine.