HHC Diesel ~ FORD 6.0L LeakProof Nipple Cups/Ball Tube Kit! Includes 8-LeakProof Nipple Cups and 8-Heavy Duty Viton Seals ~ F60L-8NIPPLE The Final Step in LeakProofing the 6.0L Diesel Engine! Replace Them Once & Never Worry About it Again! Lifetime Warranty on NippleCups! This Kit Includes: 8-LeakProof Nipple Cups and 8-Heavy Duty Viton Seals Patent Pending Design Made of Hardened Tool Steel and Features a Deflection Groove to Divert High Pressure Oil Leaks Harmlessly Away From Your Top Injector Seals Compatible With All 6.0L Diesel Engines 2003-2010(Ford SuperDuty F-250/350/450 & E-Series)