Ignition System

Indmar Marine Sparks Plug Kit – 5.7L Iridium | Catalyst Exhaust Engine | Part #491009 Upgrade your ignition system with this genuine Indmar iridium spark plug kit, specifically designed for Indmar 5.7L engines fitted with a catalyst exhaust system. Iridium plugs represent the pinnacle of spark plug technology — delivering stronger, more consistent sparks, longer service life, and measurably better performance compared to standard plugs. If you want the best ignition performance from your catalyst-equipped Indmar 5.7L — iridium is the answer. Compatible with: Indmar 5.7L marine engines fitted with catalyst exhaust systems on Malibu, Moomba, Supra, and Tige boats. Contact us to verify fitment for your specific model year

Indmar Marine Ignition Wire & Lead Set – 5.7L Chevrolet Small Block EST | Part #756002 Restore reliable ignition performance with this genuine Indmar ignition wire and lead set, specifically designed for the Indmar 5.7L Chevrolet small block engine with Electronic Spark Timing (EST). A complete set of ignition leads is one of the most overlooked tune-up items on marine engines — yet worn or damaged leads are one of the most common causes of misfires, rough running, and hard starting on the 5.7L small block. Compatible with: Indmar 5.7L Chevrolet small block marine engines with Electronic Spark Timing (EST) fitted to Malibu, Moomba, Supra, and Tige boats. Contact us to verify fitment for your specific model year