{"product_id":"pcm-exhaust-gasket-catalytic-rm0274","title":"PCM Exhaust System Gasket – Catalytic | RM0274","description":"\u003ch2\u003ePCM Exhaust System Gasket – Catalytic | RM0274\u003c\/h2\u003e\u003cp\u003eStop exhaust leaks before they become a safety issue. This OEM-specification exhaust gasket seals the connection between exhaust components in PCM catalytic converter-equipped inboard engines, preventing hot exhaust gases from escaping at the joint. A failed or compressed exhaust gasket lets combustion gases into the bilge or engine compartment — a hazard that goes beyond engine damage.\u003c\/p\u003e\u003cp\u003eMade from high-temperature resistant material rated for the heat and vibration cycles of a marine exhaust system, this gasket provides a reliable, long-lasting seal when installed correctly. Using an OEM-spec gasket ensures the correct thickness, bore size, and material for the application — generic substitutes often compress unevenly or fail prematurely under marine exhaust temperatures.\u003c\/p\u003e\u003ch3\u003eBest Use Case\u003c\/h3\u003e\u003cp\u003eBest suited for exhaust system service on PCM catalytic converter-equipped inboard engines, including the Excalibur 330, EX343, ZR409, and ZR6 — engines commonly found in Correct Craft and Nautique ski, wake, and surf boats. Replace any time exhaust components are disassembled for service, when an exhaust leak is detected by smell or sound, or when the existing gasket shows compression set, cracking, or burn-through. Always replace the gasket rather than reusing the original when reassembling exhaust joints.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eType: Exhaust system gasket\u003c\/li\u003e\n\u003cli\u003eApplication: PCM catalytic converter-equipped inboard engines\u003c\/li\u003e\n\u003cli\u003eMaterial: High-temperature marine exhaust gasket material\u003c\/li\u003e\n\u003cli\u003ePart number: RM0274\u003c\/li\u003e\n\u003cli\u003eCross-reference: RM0274A (updated\/alternate version)\u003c\/li\u003e\n\u003cli\u003eSold individually\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eParts Desk Insights\u003c\/h3\u003e\u003cp\u003eExhaust gasket fitment on PCM engines varies by model, exhaust configuration, and serial number range — confirm using your engine model and serial number before ordering. RM0274 is specific to catalytic converter exhaust systems; non-cat PCM engines use different gasket part numbers. Note that RM0274A is listed as an updated or alternate version — if RM0274 is not available, check with the parts desk to confirm whether RM0274A is a direct substitute for your application. When reassembling exhaust joints, torque fasteners to spec and inspect the mating flanges for warping or corrosion that could prevent a proper seal even with a new gasket.\u003c\/p\u003e","brand":"PCM","offers":[{"title":"Default Title","offer_id":43563970199588,"sku":"RM0274","price":69.63,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/320338ca-bde8-40f4-a42a-70eb3c42ee7d_551029f3-d1cf-427f-86ca-4ee2900e07bd.png?v=1773597549","url":"https:\/\/marisolmarine.com\/products\/pcm-exhaust-gasket-catalytic-rm0274","provider":"Marisol Marine Company","version":"1.0","type":"link"}