{"product_id":"sierra-68401p-eclipse-series-2-inch-marine-water-temperature-gauge-120-240-f-domed-glass-lens","title":"Sierra 68401P Eclipse 2 Inch Water Temperature Gauge, 120-240 F, IB\/IO","description":"\u003cp\u003eThe Sierra 68401P is a 2 inch Eclipse-series water temperature gauge built for most outboards, stern drives, and gasoline-powered inboards. It reads a temperature range of 120 to 240 degrees F and pairs with a sender using code \"D\". The Eclipse design features smart white and blue graphics on a black dial background, with a very low profile bezel that follows the curve of the lens to eliminate water trapping around the edge of the gauge. The lens itself is domed glass, which sheds water and resists scratching over years of use in a marine helm environment.\u003c\/p\u003e\u003cp\u003eNighttime visibility is handled by perimeter lighting built into the bezel, so the dial stays readable after dark without glare washing out the face. The dial is marked with both U.S. And metric scales, and ISO symbols are used where appropriate, making the gauge easy to read regardless of which measurement system the operator prefers. The 1\/8 NPT thread type on the sender connection matches standard marine temperature sender fittings. For boat builders and refit projects looking for a matched helm, the 68401P is also offered as part of a larger IB\/IO instrument set alongside matching tachometer, hour meter, and other Eclipse gauges. Optional add-on eyebrow or square bezels are available separately for owners who want a different bezel profile.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 68401P\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Water Temperature Gauge\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e Eclipse\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDial Size:\u003c\/strong\u003e 2 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Range:\u003c\/strong\u003e 120 to 240 degrees F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSender Code:\u003c\/strong\u003e D\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Type:\u003c\/strong\u003e 1\/8 NPT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Glass\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Dimensions:\u003c\/strong\u003e 2 x 3 x 4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.5 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLens:\u003c\/strong\u003e Scratch-resistant domed glass\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLighting:\u003c\/strong\u003e Perimeter lighting\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eScale:\u003c\/strong\u003e U.S. And metric with ISO symbols\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Applications:\u003c\/strong\u003e Most outboards, stern drives, and gasoline-powered inboards\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282267131\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eFits most outboards, stern drives, and gasoline-powered inboards\u003c\/li\u003e\n\u003cli\u003eRequires a temperature sender using sender code \"D\"\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat temperature range does the Sierra 68401P water temperature gauge read?\u003c\/strong\u003e The gauge reads a range of 120 to 240 degrees F, displayed on a 2 inch dial with both U.S. And metric scales.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 68401P come with a temperature sender?\u003c\/strong\u003e The 68401P gauge itself requires a sender using sender code \"D\" for correct operation; the sender is matched by that code rather than bundled as a fixed kit item in this listing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat boats and engines is the Sierra 68401P designed for?\u003c\/strong\u003e It is designed for most outboards, stern drives, and gasoline-powered inboards, making it a broadly compatible helm gauge rather than a single-engine-specific part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat size is the dial on this gauge?\u003c\/strong\u003e The Sierra 68401P has a 2 inch dial, part of the Eclipse instrument line.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the lens made of on the Eclipse gauges?\u003c\/strong\u003e The 68401P uses a scratch-resistant domed glass lens that sheds water and resists scratching over time.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 68401P light up at night?\u003c\/strong\u003e Yes, perimeter lighting is built into the bezel for good readability after dark.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat thread size does the sender connection use?\u003c\/strong\u003e The 68401P uses a 1\/8 NPT thread type for the sender connection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 68401P weigh?\u003c\/strong\u003e The gauge weighs 0.5 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan the 68401P be paired with matching gauges for a full instrument panel?\u003c\/strong\u003e Yes, the 68401P is offered as part of a larger IB\/IO instrument set with matching Eclipse-series tachometer, hour meter, and other gauges for a coordinated helm layout.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAre additional bezel styles available for the 68401P?\u003c\/strong\u003e Yes, optional add-on eyebrow or square bezels are available separately for the Eclipse gauge line.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy does the bezel design matter on the Eclipse 68401P?\u003c\/strong\u003e The very low profile bezel follows the curve of the lens, which eliminates water trapping around the edge of the 68401P gauge.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat does the dial look like on the 68401P?\u003c\/strong\u003e It has smart white and blue graphics on a black dial background, part of the Eclipse styling used across the 68401P and matching instruments.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988453241051,"sku":"SIE-68401P","price":47.21,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/68401P__59783.1722359100.500.750.jpg?v=1785189186","url":"https:\/\/www.goodvibesmarina.com\/products\/sierra-68401p-eclipse-series-2-inch-marine-water-temperature-gauge-120-240-f-domed-glass-lens","provider":"Good Vibes Marina","version":"1.0","type":"link"}