Champion N4C Spark Plug – BSA / Triumph / Norton (NGK B7ES Equivalent)
$10.12
Champion N4C spark plug for BSA A7/A10/A50/A65, Triumph TR6/T120, and Norton pre-Commando models. 14mm, 19mm reach, non-projected tip. NGK B7ES equivalent.
10 in stock (can be backordered)
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Champion N4C spark plug BSA Triumph Norton: Champion N4C spark plug BSA Norton – one of the most widely-specified ignition parts for vintage British motorcycles.
The N4C carries a medium heat range comparable to the NGK B7ES, making it the correct OEM choice for many 1960s and 1970s BSA and Triumph models, as well as Norton Dominator and pre-Commando models.
Featuring 14mm threads and a 19mm thread reach with a non-projected tip, the N4C fits into a wide range of classic British cylinder heads without modification. The removable terminal nut allows compatibility with various spark plug cap types.
Specifications:
– Thread: 14mm x 1.25mm
– Thread reach: 19mm
– Tip: Non-projected
– Hex size: 5/8″
– Heat range equivalent: NGK B7ES
– Champion part number: N4C (SKU: 062351)
Fits:
– BSA A7, A10, A50, A65 (1950s-1970s)
– Triumph 500 and 650 twins (1950s-1970s)
– Norton Dominator 88 and 99
– Norton Atlas and pre-Commando models
Order the Champion N4C spark plug BSA Norton and Triumph restorers have relied on for decades.
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