{"product_id":"power-pack-cd-3-6-for-johnson-evinrude-60-70-75-hp-3-cylinder-1986-1990-replaces-oem-583125-sierra-18-99173","title":"Sierra 18-99173 Power Pack, Replaces 763796, Fits Johnson\/Evinrude 60\/70\/75 HP 3-Cylinder Outboards 1986-1990","description":"\u003cp\u003eThe Sierra 18-99173 is a power pack for Johnson\/Evinrude 3-cylinder outboard engines. It is the ignition control module that regulates spark timing and delivery across the cylinders, and it is a direct fit for 60, 70, and 75 HP Johnson\/Evinrude outboards built between 1986 and 1990. A failing or worn power pack is a common cause of hard starting, misfiring, rough idle, or a no-spark condition on these engines, and replacing it with the correct 3-cylinder unit restores reliable ignition performance.\u003c\/p\u003e\u003cp\u003eThis power pack is sized to fit within the existing engine wiring harness and mounting points used on the applicable 1986-1990 Johnson\/Evinrude 3-cylinder powerheads, with overall dimensions of 5.75 x 4.37 x 2.32 inches. It corresponds to the OEM power pack numbers 763796, 583125, 582115, and 583143, so it is intended as a like-for-like replacement for engines originally equipped with any of those units. Because engine manufacturers used multiple power pack revisions across production runs, buyers should confirm the OEM number currently on their engine against the replacement numbers listed here before ordering.\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 18-99173\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Power Pack\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine Make:\u003c\/strong\u003e Johnson\/Evinrude\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCylinders:\u003c\/strong\u003e 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits Horsepower:\u003c\/strong\u003e 60, 70, 75 HP\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits Years:\u003c\/strong\u003e 1986-1990\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.6 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 5.75 x 4.37 x 2.32 inches\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eJohnson\/Evinrude 3-cylinder outboards, 60, 70, and 75 HP, 1986-1990\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e763796\u003c\/li\u003e\n\u003cli\u003e583125\u003c\/li\u003e\n\u003cli\u003e582115\u003c\/li\u003e\n\u003cli\u003e583143\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-99173 power pack fit?\u003c\/strong\u003e The Sierra 18-99173 fits Johnson\/Evinrude 3-cylinder outboard engines rated at 60, 70, and 75 HP, built between 1986 and 1990.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhich OEM part numbers does 18-99173 replace?\u003c\/strong\u003e It replaces OEM power pack numbers 763796, 583125, 582115, and 583143 on applicable Johnson\/Evinrude 3-cylinder outboards.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this a genuine Johnson\/Evinrude part or an aftermarket replacement?\u003c\/strong\u003e The 18-99173 is sold under the Sierra part number as a replacement for the original Johnson\/Evinrude power pack numbers 763796, 583125, 582115, and 583143, not an OEM-branded unit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-99173 power pack weigh?\u003c\/strong\u003e It weighs 0.6 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are the physical dimensions of this power pack?\u003c\/strong\u003e The unit measures 5.75 x 4.37 x 2.32 inches.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat symptoms indicate the power pack needs replacement?\u003c\/strong\u003e Hard starting, misfiring, rough idle, or a no-spark condition on a Johnson\/Evinrude 3-cylinder outboard are common signs the power pack, such as the Sierra 18-99173, needs replacement.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the 18-99173 work on a 2-cylinder or 4-cylinder Johnson\/Evinrude engine?\u003c\/strong\u003e No. The Sierra 18-99173 is built specifically for 3-cylinder Johnson\/Evinrude engines and is not intended for 2-cylinder or 4-cylinder applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-99173 fit both 60 HP and 75 HP engines?\u003c\/strong\u003e Yes, the Sierra 18-99173 covers 60, 70, and 75 HP Johnson\/Evinrude 3-cylinder outboards from 1986-1990.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow do I confirm this power pack is correct for my engine?\u003c\/strong\u003e Check the OEM power pack number currently installed on your engine against the replacement numbers for the Sierra 18-99173: 763796, 583125, 582115, or 583143, before ordering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs a specific wiring harness or connector needed to install the 18-99173?\u003c\/strong\u003e The 18-99173 is designed to connect using the existing wiring harness on the applicable Johnson\/Evinrude 3-cylinder engine; no separate harness is specified for this power pack.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat years of Johnson\/Evinrude outboards is this power pack for?\u003c\/strong\u003e The Sierra 18-99173 is designated for Johnson\/Evinrude 3-cylinder outboards from model years 1986 through 1990.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988438298843,"sku":"SIE-18-99173","price":106.09,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/CDI-113-2115_lg__06144.1748352104.500.750.jpg?v=1785188501","url":"https:\/\/www.goodvibesmarina.com\/products\/power-pack-cd-3-6-for-johnson-evinrude-60-70-75-hp-3-cylinder-1986-1990-replaces-oem-583125-sierra-18-99173","provider":"Good Vibes Marina","version":"1.0","type":"link"}