Mastercraft

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 Fuel Pump Replacement Kit – Replaces 556184 | Part #495187 Restore reliable fuel delivery to your Indmar marine engine with this genuine Indmar fuel pump replacement kit — the correct current replacement for superseded part 556184. A failing fuel pump is one of the most disruptive breakdowns you can experience on the water — loss of fuel pressure means loss of power, and in a complete pump failure, a stranded boat. This kit provides everything needed for a complete, reliable fuel pump service. Compatible with: Indmar marine engines previously fitted with fuel pump 556184 on Malibu, Moomba, Supra, and Tige boats. Contact us to verify fitment for your specific model year

Indmar Marine Ignition Coil – L96 / LS3 / LSA Engines | Part #551756 Keep your LS-series Indmar engine firing at full strength with this genuine Indmar ignition coil for L96, LS3, and LSA marine engines. The LS-series uses a Coil On Plug (COP) system — one individual coil per cylinder sitting directly on each spark plug. A failed coil on a COP system causes an immediate single cylinder misfire — easily identified but requiring prompt replacement to protect the catalyst exhaust system from unburnt fuel damage. Compatible with: Indmar L96, LS3, and LSA marine engines fitted to Malibu, Moomba, Supra, and Tige boats. Contact us to verify fitment

PORT SIDE EXHAUST ELBOW USED ON 5.7 CAT MANIFOLDS 2011 THRU CURRENT USE 765006 GASKET, 735020 V-BAND CLAMP. Indmar Marine Exhaust Elbow – Catalyst Extended Port | Part #585018 Keep your exhaust system flowing freely and your engine running clean with this genuine Indmar catalyst exhaust elbow, extended port design. A critical component in your Indmar marine exhaust system — the exhaust elbow directs hot exhaust gases away from the engine while the integrated catalyst helps reduce harmful emissions, keeping your boat compliant with Australian marine environmental standards.

Indmar Marine Ignition Wire Set – 6.0L CNP Shielded 90° Catalyst | Part #751203P The correct ignition wire set for Indmar 6.0L Coil Near Plug (CNP) engines fitted with a catalyst exhaust system. Shielded construction and 90-degree boots are not optional on this application — they are essential for correct ignition performance, O2 sensor accuracy, and emissions compliance. Compatible with: Indmar 6.0L CNP catalyst exhaust marine engines fitted to Malibu, Moomba, Supra, and Tige boats. Contact us to verify fitment before ordering.