{"product_id":"mercury-spark-plug-wire-set-8m0104881","title":"Mercury Spark Plug Wire Set #8M0104881","description":"\u003ch2\u003eMercury Marine 8M0104881 Spark Plug Wire Sets\u003c\/h2\u003e\n\u003cp\u003eSpark plug wires don't fail dramatically — they degrade gradually, and that gradual degradation is exactly what makes them easy to overlook during routine maintenance. The Mercury Marine 8M0104881 Spark Plug Wire Set is a genuine OEM replacement set built specifically for compatible Mercury engines, restoring the clean, consistent spark delivery that keeps your engine running the way it should.\u003c\/p\u003e\n\u003cp\u003eOver time, spark plug wire insulation breaks down from heat cycling, ozone exposure, and the constant vibration of a running engine. As the insulation degrades, resistance increases, and the wire's ability to deliver a strong, consistent spark to the plug diminishes. The result shows up as misfires, rough idle, hesitation under load, or a general loss of power that's easy to attribute to other causes. Swapping the wire set is often the fix that clears up ignition issues that have been chased for a while.\u003c\/p\u003e\n\u003cp\u003eAs a genuine Mercury Marine OEM set, the 8M0104881 is engineered to the correct wire length, boot configuration, and suppression specifications for compatible Mercury engines. The boots are designed to seal properly against the plug and coil connections, and the wire construction meets Mercury's standards for heat resistance and electrical performance in a marine environment, where the combination of moisture, heat, and vibration is harder on ignition components than almost any other application.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGenuine Mercury Marine OEM spark plug wire set\u003c\/li\u003e\n\u003cli\u003ePart Number: 8M0104881\u003c\/li\u003e\n\u003cli\u003eOEM wire lengths, boot configuration, and suppression specs\u003c\/li\u003e\n\u003cli\u003eBuilt for heat resistance and performance in marine environments\u003c\/li\u003e\n\u003cli\u003eDirect replacement — no modification required\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eConfirm your engine's model and serial number before ordering. Mercury spark plug wire sets are engine-specific, and verifying the correct set for your application ensures proper boot fit, correct wire routing, and full ignition performance from the first start.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eNormalized SKU:\u003c\/b\u003e 8M0104881\u003cbr\u003e\u003cb\u003eUPC Code:\u003c\/b\u003e 745061953161\u003c\/p\u003e","brand":"Mercury Marine","offers":[{"title":"Default Title","offer_id":54090306027825,"sku":"MRC-8M0104881","price":125.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0015\/7184\/8291\/files\/mercury-spark-plug-wire-set-8m0104881-745061953161-1236470702.jpg?v=1777889847","url":"https:\/\/www.firstchoicemarine.com\/products\/mercury-spark-plug-wire-set-8m0104881","provider":"First Choice Marine","version":"1.0","type":"link"}