*Now In Stock!* New English Made Early Triumph Unit 350 & 500 Twins Sump Filter Screen Cork Washer. For a very long time this cork washer was known to be very “Hard To Find”! Not anymore! This is a quality new production part that is ready to be to installed! Fits all Triumph 350 & 500 Unit Twins (T90, 3TA, 5TA, Twenty-One, Tiger, T100SS T100T, T100SC, T100A & T100C) from 1960-1968. Please refer to your parts catalog for proper fitment.*****Please note that this Cork Sealing washer was not used on Late Triumph 350 & 500 Twins from 1969-1974.*****Made in the UKO.E.M Part number is 70-3723 or E3723