Triumph Exhaust Cam Tach Drive Thimble (1) - 70-4700 12-55742 M Part number is 70-6853

M Part number is 70-6853 & 70-6854

We currently offer two brands of mufflers for your vintage twin from 1963-1970 - we offer EMGO (Taiwan) which is a nice muffler

Please note that all bulbs are sold each as pictured - use the drop down menu to select which bulb you desire

Boots have 15 ribs and measure (not stretching) 7 3/4" long

You will get the four reducers as pictured

Triumph Exhaust Cam Tach Drive Thimble (1) - 70-4700 12-55742 M Part number is 70-6853Up for grabs today is a new Triumph exhaust camshaft tachometer drive thimble. This thimble fits on the end of the exhaust camshaft to drive the tachometer drive box. With out this part your tach drive will not work! Thimble will replace Triumph part number 70 4700 and E4700. Fits various Triumph twins (TR6, T120, T100, etc). Check your parts book to ensure the best fitment. Please note that this tach drive thimble is sold individually **Features**