{"product_id":"cdi-electronics-413-1721-wiring-harness-replaces-omc-581721-fits-1977-85-115-140-hp-johnson-evinrude-cross-flow-round-plug-outboards","title":"CDI Electronics 413-1721 Wiring Harness - Replaces OMC 581721 - Fits 1977 85\/115\/140 HP Johnson Evinrude Cross Flow Round Plug Outboards","description":"\u003cp\u003eThe CDI Electronics 413-1721 is a wiring harness engineered for Johnson and Evinrude outboard engines equipped with round plug, cross flow powerheads. CDI Electronics builds ignition and diagnostic components for the marine industry, and this harness is designed as a cost-effective alternative to the original OEM-supplied wiring, delivering the same fit and function without the OEM price tag. The harness uses copper conductors for reliable current and signal transfer between the engine's ignition components, and terminates in a round plug connector to match the factory connection points on compatible engines.\u003c\/p\u003e\u003cp\u003eThis harness is built specifically for 1977 model year Johnson and Evinrude outboards rated at 85 HP, 115 HP, and 140 HP with cross flow, round plug configurations. It is a direct replacement for the OMC part number 581721, allowing owners to restore or repair the engine wiring harness without sourcing a discontinued OEM part. Installation follows the routing and connection points of the original factory harness.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e CDI Electronics\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 413-1721\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Copper\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnector Type:\u003c\/strong\u003e Round Plug\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.8 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 736983853691\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine Configuration:\u003c\/strong\u003e Cross Flow Engines, Round Plug\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eJohnson\/Evinrude 85 HP - 1977\u003c\/li\u003e\n\u003cli\u003eJohnson\/Evinrude 115 HP - 1977\u003c\/li\u003e\n\u003cli\u003eJohnson\/Evinrude 140 HP - 1977\u003c\/li\u003e\n\u003cli\u003eCross Flow Engines, Round Plug configuration\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eOMC 581721\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the CDI Electronics 413-1721 wiring harness fit?\u003c\/strong\u003e The 413-1721 fits 1977 Johnson and Evinrude outboards rated at 85 HP, 115 HP, and 140 HP with cross flow, round plug engine configurations.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part number does the 413-1721 replace?\u003c\/strong\u003e It replaces OMC part number 581721, so it can be used as a direct swap for that original wiring harness.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this harness genuine OEM or aftermarket?\u003c\/strong\u003e The 413-1721 is manufactured by CDI Electronics as an aftermarket component built as a cost-effective alternative to OEM-supplied wiring harnesses, not an original OMC part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the wiring made from?\u003c\/strong\u003e The CDI Electronics 413-1721 harness uses copper conductors for the internal wiring.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat type of connector does the 413-1721 use?\u003c\/strong\u003e It uses a round plug connector, matching the factory connection style found on the 1977 Johnson\/Evinrude cross flow engines it is designed for.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 413-1721 wiring harness weigh?\u003c\/strong\u003e The harness weighs 0.8 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill this harness work on a 1978 or later Evinrude outboard?\u003c\/strong\u003e The 413-1721 is specified for 1977 model year 85 HP, 115 HP, and 140 HP Johnson\/Evinrude engines; fitment for other model years is not specified for this part number.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 413-1721 fit both 85 HP and 115 HP engines?\u003c\/strong\u003e Yes, the CDI Electronics 413-1721 is fitted to 1977 Johnson\/Evinrude 85 HP, 115 HP, and 140 HP cross flow, round plug engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is included with the CDI Electronics 413-1721?\u003c\/strong\u003e The 413-1721 is supplied as a single wiring harness unit designed for direct installation on compatible 1977 Johnson\/Evinrude engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow is CDI Electronics different from the original equipment manufacturer?\u003c\/strong\u003e CDI Electronics builds ignition and wiring components, including the 413-1721 harness, engineered to match OEM fit and performance while offering a cost-effective alternative to OEM-supplied parts.\u003c\/p\u003e","brand":"CDI Electronics","offers":[{"title":"Default Title","offer_id":49027441524955,"sku":"CDI-413-1721","price":204.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/CDI-413-1721_lg__49857.1722375604.500.750.jpg?v=1785163454","url":"https:\/\/www.goodvibesmarina.com\/products\/cdi-electronics-413-1721-wiring-harness-replaces-omc-581721-fits-1977-85-115-140-hp-johnson-evinrude-cross-flow-round-plug-outboards","provider":"Good Vibes Marina","version":"1.0","type":"link"}