Brand new high quality Triumph 718738 nitrile vented fuel filler cap seal / grommet. Compatible with modern E10 fuel.

Fits Triumph Spitfire IV, Spitfire 1500, GT6, TR4A, TR250, TR5, TR6. 

 Visit my eBay Shop for other Triumph, MG and the non-vented versions of this cap seal (725220).