Indmar Marine Spark Plug – Supercharged 575 | Part #597128 Purpose-built for the most powerful engine in the Indmar lineup — this genuine spark plug is the only correct choice for the Supercharged 575 marine engine. The SC 575 operates at significantly higher cylinder pressures and temperatures than any naturally aspirated Indmar engine — demanding a spark plug engineered specifically to handle the extreme conditions of forced induction marine performance. Compatible with: Indmar Supercharged 575 marine engines fitted to Malibu, Moomba, Supra, and Tige boats. Contact us to verify fitment for your specific model year before ordering. ⚠️ IMPORTANT — Correct Plug for Supercharged 575 Only: THIS PLUG IS SPECIFICALLY FOR SUPERCHARGED 575 MODELS ONLY. If your boat is fitted with the naturally aspirated Ford 6.2L engine you must use: 597037-16 – Spark Plug Ford 6.2L CYFS-12FP Set of 16 If you are unsure which engine your boat is fitted with — contact us before ordering.
Indmar Marine Spark Plugs – Set of 8 | LS1 / LQ9 / LY6 / L96 / LS3 Engines | Part #491012 Keep your Indmar LS-series engine firing cleanly and consistently with this genuine Indmar spark plug, covering the LS1, LQ9, LY6, L96, and LS3 engine families. The LS-series engines are among the most respected and reliable marine powerplants ever built — and keeping the ignition system in top condition is the key to maintaining their legendary performance and longevity on the water. Compatible with: Indmar LS1, LQ9, LY6, L96, and LS3 marine engines fitted to Malibu, Moomba, Supra, and Tige boats. Contact us to verify fitment for your specific model year before ordering.