{"product_id":"mercury-thermostat-seal-fits-mcm-mie-v-6-v-8-with-closed-cooling-25-8071341","title":"Mercury - Thermostat Seal - Fits MCM\/MIE V‑6 \u0026 V‑8 with Closed Cooling - 25-8071341","description":"\u003cp data-start=\"0\" data-end=\"294\" class=\"\"\u003eKeep your big-block MerCruiser running cool and clean with Mercury’s \u003cstrong data-start=\"69\" data-end=\"99\"\u003eThermostat Seal 25-8071341\u003c\/strong\u003e. This low-profile ring nests between the thermostat cup and housing on closed-cooling V-6 and V-8 MCM\/MIE engines, locking in pressure so coolant circulates exactly the way the factory intended.\u003c\/p\u003e\n\u003cp data-start=\"296\" data-end=\"351\" class=\"\"\u003e\u003cstrong data-start=\"296\" data-end=\"351\"\u003eWhy this seal is worth ten minutes on the workbench\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"353\" data-end=\"808\"\u003e\n\u003cli data-start=\"353\" data-end=\"468\" class=\"\"\u003e\n\u003cp data-start=\"355\" data-end=\"468\" class=\"\"\u003e\u003cstrong data-start=\"355\" data-end=\"371\"\u003eOEM geometry\u003c\/strong\u003e—matches the 3.25-inch groove on popular 4.3L, 5.0L, 5.7L, and 8.2L blocks; no trimming or RTV.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"469\" data-end=\"597\" class=\"\"\u003e\n\u003cp data-start=\"471\" data-end=\"597\" class=\"\"\u003e\u003cstrong data-start=\"471\" data-end=\"506\"\u003eFuel- and glycol-resistant EPDM\u003c\/strong\u003e shrugs off 250 °F heat and the corrosion inhibitors in Dex-Cool or Prestone-style mixes.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"598\" data-end=\"719\" class=\"\"\u003e\n\u003cp data-start=\"600\" data-end=\"719\" class=\"\"\u003e\u003cstrong data-start=\"600\" data-end=\"623\"\u003eSquared sealing lip\u003c\/strong\u003e distributes torque evenly, stopping that slow weep that leaves pink crust around the housing.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"720\" data-end=\"808\" class=\"\"\u003e\n\u003cp data-start=\"722\" data-end=\"808\" class=\"\"\u003e\u003cstrong data-start=\"722\" data-end=\"743\"\u003eOne-piece drop-in\u003c\/strong\u003e eliminates messy paper gaskets and keeps future services simple.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"810\" data-end=\"1099\" class=\"\"\u003eSwap it during a spring impeller change or whenever you inspect the thermostat. The payoff is immediate: tighter temperature control, zero coolant loss, and the confidence to lean on the throttle without eyeing the gauge. Small part, big insurance for the heart of your Mercury powerplant.\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46940953182499,"sku":"25-8071341","price":7.01,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/8071341.jpg?v=1741102717","url":"https:\/\/partsvu.com\/en-ca\/products\/mercury-thermostat-seal-fits-mcm-mie-v-6-v-8-with-closed-cooling-25-8071341","provider":"PartsVu","version":"1.0","type":"link"}