{"product_id":"873526-switch-genuine-volvo-penta","title":"873526 Switch | Genuine Volvo Penta Part","description":"\u003ch2\u003e\n 🔧 Product Description\n\u003c\/h2\u003e\n\u003cp\u003e\n Genuine Volvo Penta alarm switch from the Instruments group, weighing 0.132 kg and listed for 15 applications across the TMD and TAMD ranges. It supersedes 864285, which earlier records list as a pressure monitor and as a pressure switch, so the same number covers both older descriptions.\n\u003c\/p\u003e\n\u003ch2\u003e\n 🚤 Compatibility\n\u003c\/h2\u003e\n\u003cp\u003e\n Typically suits:\n\u003c\/p\u003e\n\u003cul\u003e\n \u003cli\u003e\n  Volvo Penta TMD100C\n \u003c\/li\u003e\n \u003cli\u003e\n  Volvo Penta TMD102A\n \u003c\/li\u003e\n \u003cli\u003e\n  Volvo Penta TMD121C\n \u003c\/li\u003e\n \u003cli\u003e\n  Volvo Penta TMD122A\n \u003c\/li\u003e\n \u003cli\u003e\n  Volvo Penta TAMD162C-C\n \u003c\/li\u003e\n \u003cli\u003e\n  Volvo Penta TAMD102A\n \u003c\/li\u003e\n \u003cli\u003e\n  Volvo Penta TAMD102D\n \u003c\/li\u003e\n \u003cli\u003e\n  Volvo Penta TAMD103A\n \u003c\/li\u003e\n \u003cli\u003e\n  Volvo Penta TAMD121D\n \u003c\/li\u003e\n \u003cli\u003e\n  Volvo Penta TAMD122A\n \u003c\/li\u003e\n \u003cli\u003e\n  Volvo Penta TAMD122A\/C\n \u003c\/li\u003e\n \u003cli\u003e\n  Volvo Penta TAMD122D\n \u003c\/li\u003e\n \u003cli\u003e\n  Volvo Penta TAMD163A-A\n \u003c\/li\u003e\n \u003cli\u003e\n  Volvo Penta TAMD165A\n \u003c\/li\u003e\n \u003cli\u003e\n  Volvo Penta TAMD165C\n \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n \u003cli\u003e\n  \u003cstrong\u003e\n   Engine Family:\n  \u003c\/strong\u003e\n  TMD, TAMD\n \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\n ⚙️ Key Features\n\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003e\n  Alarm switch\n \u003c\/li\u003e\n \u003cli\u003e\n  0.132 kg\n \u003c\/li\u003e\n \u003cli\u003e\n  Listed for 15 applications\n \u003c\/li\u003e\n \u003cli\u003e\n  Covers TMD and TAMD engines\n \u003c\/li\u003e\n \u003cli\u003e\n  Supersedes 864285, catalogued earlier as a pressure monitor and as a pressure switch\n \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\n 🔌 Function\n\u003c\/h2\u003e\n\u003cp\u003e\n Closes the alarm circuit when the condition it senses goes out of limits, triggering the warning at the panel.\n\u003c\/p\u003e\n\u003ch2\u003e\n ⚠️ Common Signs of Failure\n\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003e\n  Alarm sounding with no fault present\n \u003c\/li\u003e\n \u003cli\u003e\n  Alarm failing to sound during the pre-start test\n \u003c\/li\u003e\n \u003cli\u003e\n  Warning that comes and goes with engine vibration\n \u003c\/li\u003e\n \u003cli\u003e\n  Weeping or staining around the switch body or its thread\n \u003c\/li\u003e\n \u003cli\u003e\n  Corroded or loose spade terminals at the switch\n \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\n 🛠️ Service Notes\n\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003e\n  Prove the alarm circuit by earthing the switch lead before condemning the switch — a broken wire gives the same silent alarm\n \u003c\/li\u003e\n \u003cli\u003e\n  The alarm is a safety system: do not run the engine with it disconnected\n \u003c\/li\u003e\n \u003cli\u003e\n  Seal the thread as the original was sealed and do not overtighten the body\n \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\n 🔄 Supersession \u0026amp; Cross Reference\n\u003c\/h2\u003e\n\u003ch3\u003e\n OEM Supersession Chain\n\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003e\n  873526 → Supersedes 864285 → Supersedes 848368 → Supersedes 843813 → Supersedes 836663\n \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\n OEM \/ Related Numbers\n\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003e\n  864285 earlier number superseded by this part\n \u003c\/li\u003e\n \u003cli\u003e\n  848368 earlier number superseded by this part\n \u003c\/li\u003e\n \u003cli\u003e\n  843813 earlier number superseded by this part\n \u003c\/li\u003e\n \u003cli\u003e\n  836663 earlier number superseded by this part\n \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\n 📦 Condition\n\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003e\n  Genuine Volvo Penta part\n \u003c\/li\u003e\n \u003cli\u003e\n  Brand new\n \u003c\/li\u003e\n \u003cli\u003e\n  Supplied in original or equivalent packaging\n \u003c\/li\u003e\n\u003c\/ul\u003e\n","brand":"Volvo Penta","offers":[{"title":"Default Title","offer_id":53385721151780,"sku":"S855281","price":222.57,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0994\/8115\/7924\/files\/original_e8411465-50c7-463e-8370-b71a5214da26.jpg?v=1788102281","url":"https:\/\/www.sawleysautoandmarine.com.au\/products\/873526-switch-genuine-volvo-penta","provider":"Sawley's Auto and Marine","version":"1.0","type":"link"}