Thunderbolt Big Block Spark Plug Wire Set | United Ignition Wire 102

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Thunderbolt Big Block Spark Plug Wire Set | United Ignition Wire 102 Thunderbolt Big Block Spark Plug Wire Set | United Ignition Wire 102 8mm ignition wire set fits Mercruiser 454 and 502 CID marine engines with Thunderbolt distributors. Fits Mercruiser 454 and 502 cu. in. marine engines from 1982-98 with Thunderbolt ignition systems Includes ignition coil wire 90 degree spark plug boots 8mm blue SSC 100% Silicone wire for ultra low resistance of 270 Ohms per foot Carbon-latex coating for superior EMI/RFI suppression Heavy duty booting used to maintain dielectric properties Stainless steel and brass terminals for longevity and superior conductivity Replaces Mercury 84-43376A2, 84-816608Q61, 84-42841A5, 84-43376A14, 84-43376A1, 84-43376A2, 84-813720A2,84-816761A15, & 84-816608A61 Show more