SPARK PLUG REFERENCE
			Make	FITS	AUTOLITE	CHAMPION	BOSCH	AC
			Triumph	Pre-Unit models with cast Iron head	4123	L82C	N/A	441F
			Triumph	Pre-Unit with alloy head	4056	N4-C	W5CC	44N
			Triumph	250,500 unit	4056	N4-C	W7CC	44N
			Triumph	Unit 650	4054	N3-C	W5CC	43N
			Triumph	1972-77 Unit 750 Twins	4054	N3-C	W5CC	43N
			Triumph	Unit 750 Triples	4054	N3-C	W5CC	43N
			Triumph	1978-82 Triumph Unit 750 Twins	4056	N4-C	W7CC	44N