TR4 CT19971 onwards. This is the type with the the exposed catch. consider second hand part 613506SH. The later cap with the catch underneath is part number 725117.
This part appears on the following Triumph Catalogue Plates
Revington TR information: This is the type with the catch underneath. The earlier cap with the exposed catch is part number 613506 This item has a secondhand part available - see below
Revington TR information: TR2-6 seal in petrol cap. This rubber seal is a square section and fits in a groove in the filler neck. Late TR6 use a seal which covers a spring loaded plate within the flip cap.... READ MORE