{"product_id":"volvo-penta-thermostat-3587597","title":"Volvo Penta Thermostat 3587597","description":"\u003cp\u003eThe \u003cstrong\u003eVolvo Penta 3587597 Thermostat\u003c\/strong\u003e is a genuine OEM cooling system component engineered to provide precise thermal regulation in Volvo Penta gasoline marine engines.\u003c\/p\u003e\n\u003cp\u003eThis thermostat uses a wax-element valve mechanism that expands at a calibrated temperature to control coolant flow through the engine. By maintaining the correct operating temperature, it ensures proper combustion efficiency, optimal fuel burn, correct oil viscosity, and protection of internal engine components.\u003c\/p\u003e\n\u003cp\u003eOperating at approximately \u003cstrong\u003e150°F (65.5°C)\u003c\/strong\u003e, this thermostat is specifically designed for raw water–cooled and closed cooling Volvo Penta systems. It helps prevent both overheating and overcooling—two conditions that can significantly reduce engine life and performance.\u003c\/p\u003e\n\u003cp\u003eManufactured to Volvo Penta's strict OEM tolerances, this unit provides exact fitment, reliable opening characteristics, and long-term durability in harsh marine environments including saltwater exposure.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eGenuine Volvo Penta OEM thermostat\u003c\/li\u003e\n\u003cli\u003ePrecision-calibrated \u003cstrong\u003e150°F (65.5°C)\u003c\/strong\u003e opening temperature\u003c\/li\u003e\n\u003cli\u003eMaintains optimal engine operating temperature range\u003c\/li\u003e\n\u003cli\u003ePrevents overheating and cold-running conditions\u003c\/li\u003e\n\u003cli\u003eEnsures stable coolant flow under load\u003c\/li\u003e\n\u003cli\u003eWax-element design for accurate thermal response\u003c\/li\u003e\n\u003cli\u003eCorrosion-resistant marine-grade brass and stainless construction\u003c\/li\u003e\n\u003cli\u003eDirect OEM replacement – no modification required\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003eEngine Compatibility\u003c\/strong\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cstrong\u003eVolvo Penta Gasoline Engines (2001–Present GM-Based Platforms)\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eCommonly used on:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e3.0L\u003c\/strong\u003e GL \/ GS \/ GXi\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4.3L V6\u003c\/strong\u003e GL \/ GI \/ GXi \/ OSi\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e5.0L V8\u003c\/strong\u003e GL \/ GI \/ GXi \/ OSi\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e5.7L V8\u003c\/strong\u003e GL \/ GI \/ GXi \/ OSi\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e8.1L V8\u003c\/strong\u003e Gi \/ GXi\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eCovers a wide range of \u003cstrong\u003elate-model Volvo Penta sterndrive engines (2002+ applications)\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eSpecific Engine Series Examples\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e4.3GXi-P \/ 4.3GL-P\u003c\/li\u003e\n\u003cli\u003e5.7GiCE \/ 5.7GL-A\u003c\/li\u003e\n\u003cli\u003eV6-200 \/ V6-225\u003c\/li\u003e\n\u003cli\u003eV8-225 \/ V8-270 \/ V8-300 \/ V8-320\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eUsed across \u003cstrong\u003eV6 and V8 Volvo Penta gasoline platforms\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eDrive \u0026amp; Application Compatibility\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSX sterndrives\u003c\/li\u003e\n\u003cli\u003eDP-S \/ DP-SM \/ DP-E \/ DP-G duoprop systems\u003c\/li\u003e\n\u003cli\u003eInboard gasoline engines with similar cooling architecture\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003eSerial Number Fitment Notice\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eFitment depends on:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eEngine model and year\u003c\/li\u003e\n\u003cli\u003eCooling system type (raw water vs closed loop)\u003c\/li\u003e\n\u003cli\u003eThermostat housing design\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAlways confirm compatibility using your \u003cstrong\u003eengine serial number\u003c\/strong\u003e before ordering.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePart Number: \u003cstrong\u003e3587597\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eType: Engine thermostat\u003c\/li\u003e\n\u003cli\u003eTemperature Rating: \u003cstrong\u003e150°F (65.5°C)\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eDiameter: ~\u003cstrong\u003e1-7\/8\"\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eOperation: Wax-element, spring-loaded valve\u003c\/li\u003e\n\u003cli\u003eConstruction: Brass thermal element, stainless steel spring and frame\u003c\/li\u003e\n\u003cli\u003eCooling System Type: Raw water \u0026amp; closed cooling compatible (application dependent)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003eWhat's Included\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eThermostat only\u003cbr\u003e\u003cem\u003e(Seal \/ gasket sold separately unless specified)\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003eWhen This Part Needs Replacement\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eReplace the thermostat if you experience:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eEngine overheating at idle or under load\u003c\/li\u003e\n\u003cli\u003eEngine running below normal temperature\u003c\/li\u003e\n\u003cli\u003eSlow warm-up or failure to reach operating temp\u003c\/li\u003e\n\u003cli\u003eFluctuating or unstable temperature gauge\u003c\/li\u003e\n\u003cli\u003eReduced fuel efficiency or poor combustion\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003eInstallation Notes\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eAlways inspect and replace O-ring\/gasket separately\u003c\/li\u003e\n\u003cli\u003eInstall with correct orientation (spring side toward engine)\u003c\/li\u003e\n\u003cli\u003eClean thermostat housing and sealing surfaces\u003c\/li\u003e\n\u003cli\u003eInspect cooling passages for debris or corrosion\u003c\/li\u003e\n\u003cli\u003eVerify proper temperature operation after installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003eAlternate \/ Superseded Part Numbers\u003c\/strong\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cstrong\u003eOEM Cross References\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eVolvo Penta: \u003cstrong\u003e3587597\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSupersedes: \u003cstrong\u003e3862835\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eAftermarket Cross References\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSierra: \u003cstrong\u003e18-3615 \/ 18-3618\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eOMC: \u003cstrong\u003e3701777\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eMercury: \u003cstrong\u003e27-53045 \/ 27-33179\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e💡 Parts Desk Insight\u003c\/h2\u003e\n\u003cp\u003eThis is one of the \u003cstrong\u003emost common Volvo gas thermostats (post-2002)\u003c\/strong\u003e—if your engine won't hit temp or runs inconsistent, this is usually the first part to replace.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eShipping:\u003c\/strong\u003e Ships same or next day for fast Canada wide shipping. ⚓\u003c\/p\u003e","brand":"VOL","offers":[{"title":"Default Title","offer_id":43564003033124,"sku":"3587597","price":42.4,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/47c57771-c1dc-4ea6-a0a5-829ab355e16a.png?v=1774379676","url":"https:\/\/marisolmarine.com\/products\/volvo-penta-thermostat-3587597","provider":"Marisol Marine Company","version":"1.0","type":"link"}