{"product_id":"sierra-65129p-lido-3-electric-tachometer-hourmeter-7000-rpm-4-stroke-gas-engines","title":"Sierra 65129P Lido 3 Inch Tachometer\/Hourmeter, 0-7000 RPM, for 4-Stroke Gas Outboard Engines","description":"\u003cp\u003eThe Sierra 65129P is a 3 inch electric tachometer\/hourmeter from the Lido-Signature Series, built for 4-stroke gas engines. It combines RPM monitoring across a 0-7000 RPM range with an integrated hourmeter, giving boat owners a single gauge to track both engine speed and accumulated running hours for maintenance scheduling. The gauge is designed for outboard, alloy applications using a coil-trigger signal, so it reads engine speed directly from the ignition coil rather than requiring a separate RPM sensor kit.\u003c\/p\u003e\u003cp\u003eSierra builds its gauges to meet or exceed the performance of the original equipment they replace, engineered to hold up in the marine environment while keeping pace with the demands of modern gas outboard engines. The 65129P is sized for standard 3 inch dash cutouts, making it a straightforward swap for boats already fitted with a 3 inch gauge opening.\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 65129P\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Tachometer\/Hourmeter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGauge Diameter:\u003c\/strong\u003e 3 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRPM Range:\u003c\/strong\u003e 0-7000 RPM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine Compatibility:\u003c\/strong\u003e 4-Stroke Gas Engines\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Outboard, Alloy\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrigger Type:\u003c\/strong\u003e Coil\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Type:\u003c\/strong\u003e Electric\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Alloy Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e Lido-Signature Series\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Dimensions:\u003c\/strong\u003e 4.5 inches L x 8 inches H x 6 inches W\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.69 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat is the RPM range of the Sierra 65129P tachometer?\u003c\/strong\u003e The Sierra 65129P reads from 0 to 7000 RPM, which covers the operating range of the 4-stroke gas engines it is designed for.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 65129P include an hourmeter?\u003c\/strong\u003e Yes, the 65129P is a combination tachometer\/hourmeter, so it tracks both engine RPM and accumulated running hours on the same 3 inch gauge face.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat size gauge cutout does the Sierra 65129P require?\u003c\/strong\u003e It is a 3 inch gauge, so it fits standard 3 inch dash openings already used for gauges of this type.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat engines is the Sierra 65129P tachometer designed for?\u003c\/strong\u003e It is designed for 4-stroke gas engines, specifically outboard, alloy applications that use a coil-trigger RPM signal.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow does the 65129P get its RPM signal?\u003c\/strong\u003e The 65129P is a coil-trigger tachometer, meaning it reads engine speed from the ignition coil rather than needing a separate magnetic pickup or sensor.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the Lido-Signature Series?\u003c\/strong\u003e The Lido-Signature Series is the gauge line the Sierra 65129P belongs to, covering tachometers and hourmeters built to Sierra's marine gauge standards.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 65129P an electric or mechanical tachometer?\u003c\/strong\u003e The 65129P is an electric tachometer\/hourmeter, not a mechanically driven unit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the Sierra 65129P gauge made from?\u003c\/strong\u003e The 65129P is constructed with an alloy steel build, in keeping with Sierra's marine-grade gauge construction.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Sierra 65129P weigh?\u003c\/strong\u003e The Sierra 65129P weighs 0.69 pounds as packaged.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 65129P genuine Sierra or an aftermarket copy?\u003c\/strong\u003e The 65129P is a genuine Sierra product from its Lido-Signature Series gauge line, not a generic aftermarket substitute.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the Sierra 65129P work on a diesel engine?\u003c\/strong\u003e No, the 65129P is built for 4-stroke gas engines; diesel applications require a different Sierra tachometer designed for diesel coil or magnetic pickup signals.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988450226395,"sku":"SIE-65129P","price":165.03,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/65129P.png?v=1784938553","url":"https:\/\/www.goodvibesmarina.com\/products\/sierra-65129p-lido-3-electric-tachometer-hourmeter-7000-rpm-4-stroke-gas-engines","provider":"Good Vibes Marina","version":"1.0","type":"link"}