+ Anti-Siphon Compatible with Kenworth Trucks

This is a very high quality solution to leaking fuel caps on kdubs. I don’t know how Randy said that you can pop it out in a few minutes, that’s not happening on mine. Very solid, classy attachment that stops leaks the moment you instal it. The antisiphon will stop fuel theft and didn’t slow down my fueling time at all. High quality machining and the fuel cap is night and day over factory kdub caps. Smooth threads and beefy orings that seal fantastic. I lubed the orings with a little 3 in 1 oil and it went together like butter. Thanks for a quality product that does what it’s advertised to do.

Very good

Might buy it if it wasn't so expensive. 350 for 2 is a reasonable price but I can't waste money for 1 at 250. I can slap another o-ring on a new cap for 30 bucks and achieve the same results. Lower your price and i would be more inclined to purchase a pair.

Can't get tanks full because they make the fuel foam up so bad and 2 minutes with a flat screwdriver and they pop right out. Not sure how they stop anything