This listing is for a Locking Aluminium Fuel Filler Cap Complete Kit 3". Stepped funnel, suits 51mm or 57mm hose, Robust key lock, flush profile, 6 Bolt x 3" PCD mounting, Kit includes support ring and gasket. These Caps are Vented. 

Ian Evans 07971 551927. www.evansandsonrallyspares.co.uk