Triumph Twins Primary Chain Adjuster Trunnions (1) - Choose Trunnion Type Layshaft It's affordable

It's affordable

this will also work for your application

Works with many BSA A7 & A10 Pre-Unit engines up to 1962

OEM part number is 06-8056

Etc) from 1963-1970

Triumph Twins Primary Chain Adjuster Trunnions (1) - Choose Trunnion Type Layshaft It's affordableNew Triumph twins primary chain adjuster trunnion. This trunnion will replace Triumph part numbers 70 4148, E4148, 70 5977 & E5977. Imported from England made in England. OEM quality We stock a few types of trunnions to fit Triumph 350, 500, and 650 unit construction models (3TA, 5TA, T90, T100, TR6, T120, etc). Check your parts book to ensure the best fitment. Please use the drop down menu to select which trunnion you need for your application