Indmar 5.7 1995-2006

Indmar Marine Lower Intake Manifold – 5.7L PFI E-Coat | Part #531197E Restore peak engine performance with this genuine Indmar lower intake manifold for the 5.7L Port Fuel Injection (PFI) engine, featuring a durable E-coat (electrocoat) finish for superior corrosion protection in the demanding marine environment. The lower intake manifold is one of the most significant components on your engine — directing the air/fuel mixture from the throttle body into each cylinder for combustion. Compatible with: Indmar 5.7L PFI (Port Fuel Injection) marine engines fitted to Malibu, Moomba, Supra, and Tige boats. Contact us to verify fitment for your specific model year before ordering.

Indmar Marine Exhaust Gasket – Catalyst Special | Part #556202SPEC Don't overlook this critical sealing component — this genuine Indmar special catalyst exhaust gasket is the correct OEM replacement for Indmar catalyst exhaust systems. Engineered to handle the extreme heat and pressure of the marine exhaust environment, this special specification gasket ensures a perfect seal every time — protecting your engine, your passengers, and your investment. Compatible with: Indmar marine engines with catalyst exhaust systems fitted to Malibu, Moomba, Supra, and Tige boats. Contact us to verify fitment for your specific model year before ordering.

Indmar Marine Thermostat 160° Drilled – LT1 & 5.7L Fresh Water Cooled Engines | Part #986034 Maintain optimal engine temperature with this genuine Indmar 160° drilled thermostat, designed specifically for fresh water cooled Indmar marine engines. The precision drilled bypass hole ensures smooth coolant flow and prevents air pockets from forming in the cooling system — a common cause of overheating in tow boats. Compatible with: Indmar LT1 and 5.7L fresh water cooled engines fitted to Malibu, Axis, Moomba, Supra, and Tige boats.

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 J-Formed Hose with Spring | Part #845040 Ensure reliable coolant flow with this genuine Indmar J-formed hose complete with internal spring. The integrated spring prevents the hose from collapsing under suction — a common problem on marine engines where cooling system pressure and flow rates are critical to preventing overheating on the water. Compatible with: Indmar marine engines fitted to Malibu, Moomba, Supra, and Tige boats.

CHEVROLET THERMOSTAT HOUSING 1 PIECE NLA.-USE 531067S THERMOSTAT HOUSING 2EA 605034 1/2" PIPE PLUGS AND 551004 GASKET. (Remove hoses going to elbow fittings in intake. Install 1/2" pipe plugs in place of those fittings)