Check your parts book and the specifications abouve
M Part number is 70-3863 or E3863
This New Stay-Up Float is one of the best Replacement Parts for your Monobloc
*****Please note that this Oil Seal will not work on Triumph Models equipped with the "5 Speed" Gear Box
Also fits many Triumph 350
Triumph Closed-End Layshaft Needle Roller Bearing (1) 57-1606 - T100 / 6T / T120 / TR6 Lucas Check your parts book andNew! USA Made Triumph Closed End Layshaft Needle Bearing. These new Koyo Torrington bearings are the highest quality needle bearings you can install in your Triumph! Made right here in the USA! Fits all Triumph 650 & 750 Unit models (Bonneville, TR6, T120TT, T120C, T140, TR7, Tiger, TR6C & Trophy) from 1963 1983. Fits Triumph 350 & 500 Unit models (T100, T100A, T100R, T100SS, T100C & TR5) from 1961 1974. Also fits many Triumph & BSA Rocket III Trident