SPARK PLUG – CHAMPION N5C – NORTON DOMINATOR BSA TRIUMPH SINGLES – 062490

Champion N5C spark plug Norton BSA Triumph singles (part number 062490) – the correct standard heat range plug for Norton Dominator 99, 88, 77, and 7 singles and twins, BSA singles and twins, and Triumph singles fitted with alloy cylinder heads. A standard 14mm thread, 3/4″ reach spark plug delivering reliable ignition performance for vintage British motorcycles.

The Champion N5C spark plug for Norton BSA Triumph provides a consistent spark across a wide RPM range, helping vintage engines start reliably and run cleanly. Ideal for standard tune engines running on pump fuel, the N5C is the correct factory specification for Dominator and similar models. It is the go-to plug for British single and twin-cylinder engines of the 1950s and 1960s that specify a medium heat range plug.

If you are rebuilding or tuning a Dominator, BSA, or Triumph single and want a plug you can trust, the Champion N5C has been the standard recommendation for these engines for decades. UK quality manufacture.

Key Details:

• Part number: 062490
• Champion N5C — medium heat range plug
• 14mm thread, 3/4″ reach
• Fits Norton Dominator 99, 88, 77, 7; BSA singles and twins; Triumph singles
• Alloy cylinder head applications
• Correct for standard tune engines on pump fuel
• UK quality