Old Britts

850 finned exhaust nut

The current price for one exhaust nut (part # 06-3988) is $51.24, as of 12/14/17.

This is the later styled exhaust nut fitted on the Norton 850cc Commandos.

 750 finned exhaust nut
Two 850 exhaust nuts.

The following picture compares the 750 finned exhaust nut set (on the right) (16_062464) with the 850 set (on the left). As you can see the 750 nuts have smaller fins and more threads than the 850 nuts.

Exhaust nut sets

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Norton Parts….. Exhaust

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