Sierra International 18-5273 Medium Tune Up Kit;
Sierra International 18-5273 Medium Tune Up Kit

Sierra products are engineered to meet today’s high horsepower engine demands and stand up in the harsh marine environment. All Sierra products meet or exceed the original equipment part it replaces. Sierra supplies m...

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Sierra products are engineered to meet today’s high horsepower engine demands and stand up in the harsh marine environment. All Sierra products meet or exceed the original equipment part it replaces. Sierra supplies many OEM engine manufacturers and boat builders hundreds of quality parts every day

  • Fits GM V-8 Engines with Thunderbolt IV & V HEI Ignitions
  • Use with 18-5470 Thunderbolt HEI Distributor
  • Fits GM V-8 Engines with Thunderbolt IV & V HEI Ignitions
  • Use with 18-5470 Thunderbolt HEI Distributor

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