These are the 3rd set of leak defenders I've purchased. My first set was just the caps and collar for my '06 Kenworth. My second was the 3 piece set for my '16 Freightliner Glider. My most recent is the Leak Defenders with integrated anti-siphon for my '14 Kenworth glider, and it's like they read my mind about integrating the collar and the anti-siphon into one solid assembly. I love these fuel caps and they look fantastic to boot. No more leaks and with fuel coming in around $6/gallon, no more fuel theft. I love the thick thread and coarse pitch, no more cross threading leaky Kenworth caps. Spendy YES, Worth it, 100%!! And no, I'm not a shill, just an O/O who appreciates a great product.

Best investment

Exactly as advertised

Great

Arrived as advertised

😁