Store › NOS Vacuum Control Valve Triumph TR250, 1969 TR6 Image 1 of 5 Image 2 of 5 Image 3 of 5 Image 4 of 5 Image 5 of 5 NOS Vacuum Control Valve Triumph TR250, 1969 TR6 $195.00 New old stock. Triumph TR250 TR6 IMPOSSIBLE TO FIND AND NECESSARY TO RUN RIGHT WITH DUAL ADVANE RETARD SYSTEMSKU 3488 Add To Cart Added! New old stock. Triumph TR250 TR6 IMPOSSIBLE TO FIND AND NECESSARY TO RUN RIGHT WITH DUAL ADVANE RETARD SYSTEMSKU 3488