Twenty (20) Viton O-rings for Bosch and other type injectors. Viton material can withstand temperatures over 500 degrees fahrenheit and has excellent resistance to solvents and oils. Viton o-rings are the only type of o-ring you should use for automotive fuel injector applications. These o-rings measure 14 millimeters in diameter and are the most popular size o-ring used on automotive fuel injectors. Will fit many vehicles including: V6, V8, MSD, Rochester, Multech, Bosch, TPI, LT1, LS1, GM, Chevy, Chevrolet, SS, Lumina, Malibu, Monte Carlo, Camaro, Caprice, Corvette, IROC, Blazer, Impala, Pontiac, GTO, Firebird, Formula, Buick Grand National, Ford-Lincoln-Mercury, Expedition, GT, Taurus, Thunderbird, F150, F250, F350, Explorer, SVT, Jeep Cherokee, Porsche, Dodge, RAM, Dakota, Volkswagen, VW. Buyer pays $1.75 shipping to the USA. Shipping cost to Canada is $7.00. Shipping cost to UK, Australia & all other countries is $11.80. Paypal accepted.