Fixing a leak in your fuel system? Need an extra olive or copper for your Perkins or late model Volvo (i.e. 2030B)? Dr. Diesel knows what a pain it can be to need a special copper washer at 3pm on a Sunday while on a mooring off Cuttyhunk. When you lose one the job comes to a (screaming) halt. Now we have a better idea. Foley has pre-assembled fuel system seal kits containing all the coppers, olives, and washers you'll need, a secondary fuel filter plus a Foley Tech Tip on how to bleed your system.