{"product_id":"sierra-88032-premium-marine-spark-plug-wire-set-47-88032","title":"Sierra Premium Marine Spark Plug Wire Set – 47-88032 | MerCruiser Thunderbolt","description":"\u003ch2\u003eSierra Premium Marine Spark Plug Wire Set – MerCruiser Thunderbolt Ignition\u003c\/h2\u003e\u003cp\u003eKeep your MerCruiser running at peak performance with this premium spark plug wire set built specifically for Thunderbolt ignition systems. Degraded plug wires are a common and often overlooked cause of misfires, rough idle, and power loss — this Sierra set delivers reliable, high-voltage spark transfer with marine-grade materials engineered to withstand engine heat, vibration, and on-water moisture exposure.\u003c\/p\u003e\u003ch3\u003eCompatible Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMerCruiser engines equipped with Thunderbolt ignition systems\u003c\/li\u003e\n\u003cli\u003eRefer to Sierra part number 47-88032 application guide for specific engine models and years\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eKevlar® core\u003c\/strong\u003e — maximum durability and long service life under continuous vibration\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStainless steel wound conductor\u003c\/strong\u003e — optimized for maximum horsepower and consistent engine performance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePremium silicone jacketing and boots\u003c\/strong\u003e — high-temperature protection against engine bay heat\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuperior RFI suppression\u003c\/strong\u003e — shields sensitive onboard electronics from ignition interference\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorrosion-resistant stainless steel terminals\u003c\/strong\u003e — at both spark plug and distributor ends for maximum conductivity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOE-style sealed boots\u003c\/strong\u003e — barrier against heat, dirt, and moisture intrusion\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication-specific magnetic suppression core\u003c\/strong\u003e — precision fit for your engine configuration\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 47-88032\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIgnition Type:\u003c\/strong\u003e Thunderbolt (MerCruiser)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e New\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eComplete Your Ignition Service\u003c\/h3\u003e\u003cp\u003eFor a full tune-up, pair these wires with a matching distributor cap and rotor from our \u003ca href=\"\/collections\/ignition-components\"\u003eIgnition Components\u003c\/a\u003e collection. Looking for a different wire set fitment? Also consider the \u003ca href=\"\/products\/sierra-premium-marine-spark-plug-wire-set-47-88021-mercruiser-thunderbolt\"\u003eSierra Wire Set – 47-88021\u003c\/a\u003e, \u003ca href=\"\/products\/sierra-88001-premium-marine-spark-plug-wire-set\"\u003eSierra Wire Set – 88001\u003c\/a\u003e, \u003ca href=\"\/products\/sierra-88011-premium-marine-spark-plug-wire-set\"\u003eSierra Wire Set – 88011\u003c\/a\u003e, or the \u003ca href=\"\/products\/sierra-88071-premium-marine-spark-plug-wire-set\"\u003eSierra Wire Set – 88071\u003c\/a\u003e.\u003c\/p\u003e\u003chr\u003e\u003ch3\u003eParts Desk Insights\u003c\/h3\u003e\u003cp\u003eThis wire set is the right choice when a MerCruiser Thunderbolt-equipped engine is misfiring under load, idling roughly, or showing intermittent spark — particularly after spark plugs have already been ruled out. At 984g, this is a heavier set suited to larger displacement or longer-lead engine configurations. As with all plug wire sets, replace the full set at once rather than individual wires to maintain consistent resistance across all cylinders. It’s also a smart preventive replacement during any major tune-up on a high-hour engine, especially if the existing wires show cracking, brittleness, or heat damage on the boots.\u003c\/p\u003e","brand":"LNS","offers":[{"title":"Default Title","offer_id":51250810552356,"sku":"47-88032","price":115.69,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/47-88041_d893180a-b619-4987-8f6b-a560a340d12e.jpg?v=1786510561","url":"https:\/\/marisolmarine.com\/products\/sierra-88032-premium-marine-spark-plug-wire-set-47-88032","provider":"Marisol Marine Company","version":"1.0","type":"link"}