Indmar Marine Spark Plug – Ford 6.2L CYFS-12FP | Set of 16 | Part #597037-16 Keep your Indmar Ford 6.2L firing at full power with this genuine CYFS-12FP spark plug set — a complete set of 16 plugs for the Ford 6.2L marine engine. The Ford 6.2L is a high performance V8 engine running a dual plug per cylinder ignition system — meaning 16 plugs per engine rather than the standard 8. Always replace the full set together for balanced ignition performance across all cylinders. ⚠️ IMPORTANT — Supercharged 575 Models: DO NOT USE THIS PLUG IN SUPERCHARGED 575 MODELS. If your boat is fitted with the Supercharged 575 engine you must use: 597128 – Spark Plug Supercharged 575 Using the incorrect plug in a supercharged engine risks serious engine damage. If you are unsure which engine your boat is fitted with Contact Us

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