{"product_id":"spark-plug-set-platinum-8-1l-crusader-rp030009","title":"Spark Plug Set Platinum 8.1L | Crusader RP030009","description":"\u003ch2\u003eSpark Plug Set Platinum 8.1L | Crusader RP030009\u003c\/h2\u003e\n\u003cp\u003eSpark Plug Set Platinum 8.1L | Crusader RP030009\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e8.1L Platinum Spark Plug Set\u003c\/li\u003e\n\u003cli\u003eIncludes (8) AC Delco spark plugs\u003c\/li\u003e\n\u003cli\u003eOriginal Crusader\u003c\/li\u003e\n\u003cli\u003eReplaces Crusader R030009\u003c\/li\u003e\n\u003cli\u003eReplaces AC Delco 41-983\u003c\/li\u003e\n\u003cli\u003eReplaces Mercruiser 33-863622001\u003c\/li\u003e\n\u003cli\u003eReplaces Marine Power 810E-210\u003c\/li\u003e\n\u003cli\u003eReplaces NGK PZTR5A-15, TR55IX\u003c\/li\u003e\n\u003cli\u003eReplaces Pleasurecraft Marine RP030009\u003c\/li\u003e\n\u003cli\u003eReplaces Volvo Penta 3861326, 3861327\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003eAdditional Information\u003c\/h5\u003e\n\u003ch4 data-path-to-node=\"3\"\u003e\u003cstrong data-path-to-node=\"3\" data-index-in-node=\"0\"\u003eOptimize Performance with the Crusader RP030009 Spark Plug Set\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp data-path-to-node=\"4\"\u003eMaintaining a high-performance marine engine requires the best parts. Consequently, the \u003cstrong data-path-to-node=\"4\" data-index-in-node=\"88\"\u003eCrusader RP030009 Spark Plug Set\u003c\/strong\u003e is a top choice for owners of 8.1L engines. These platinum plugs are designed to meet the heavy demands of big-block marine power. Since the 8.1L engine generates significant heat, your ignition system must be durable. Therefore, investing in premium plugs ensures your boat stays reliable all season long.\u003c\/p\u003e\n\u003ch4 data-path-to-node=\"5\"\u003e\u003cstrong data-path-to-node=\"5\" data-index-in-node=\"0\"\u003eThe Advantages of Platinum Technology\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp data-path-to-node=\"6\"\u003eFirst of all, platinum spark plugs offer superior longevity compared to standard copper ones. Because platinum is a dense and hard metal, it resists wear from high-voltage sparks. In addition, these plugs maintain a stable gap for much longer periods. This stability is vital for the precise timing required by 8.1L fuel-injected engines. Furthermore, the platinum tip allows for a quicker and hotter spark. As a result, you will notice faster cold starts and a much smoother idle at the dock.\u003c\/p\u003e\n\u003ch4 data-path-to-node=\"7\"\u003e\u003cstrong data-path-to-node=\"7\" data-index-in-node=\"0\"\u003eEnhanced Fuel Efficiency and Power\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp data-path-to-node=\"8\"\u003eA strong spark is the key to complete combustion. When you use the \u003cstrong data-path-to-node=\"8\" data-index-in-node=\"67\"\u003eCrusader RP030009\u003c\/strong\u003e, you ensure that every drop of fuel is used effectively. For this reason, many boaters see an improvement in their overall fuel economy. Moreover, consistent firing across all eight cylinders prevents power loss during heavy acceleration. Since big blocks often push heavy loads, every bit of efficiency matters. Thus, fresh platinum plugs help you climb onto plane with much less effort.\u003c\/p\u003e\n\u003ch4 data-path-to-node=\"9\"\u003e\u003cstrong data-path-to-node=\"9\" data-index-in-node=\"0\"\u003eCompatibility and Easy Maintenance\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp data-path-to-node=\"10\"\u003eFortunately, this kit is a direct OEM replacement for many popular marine setups. \u003cspan class=\"citation-732 citation-end-732\"\u003eSpecifically, it replaces the AC Delco 41-983 and fits Mercruiser 496 Mag and HO models.\u003c\/span\u003e Because it is a complete set of eight, you can replace all plugs in one session. However, you should always check the gap before installation to ensure it meets the \u003cstrong data-path-to-node=\"10\" data-index-in-node=\"336\"\u003e0.060-inch\u003c\/strong\u003e specification. Once installed, these plugs require very little attention. Consequently, you spend more time on the water and less time in the engine room.\u003c\/p\u003e\n\u003ch4 data-path-to-node=\"11\"\u003e\u003cstrong data-path-to-node=\"11\" data-index-in-node=\"0\"\u003eWhy Proactive Ignition Service Matters\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp data-path-to-node=\"12\"\u003eMarine environments are incredibly tough on electrical components. Humidity and salt air can lead to fouled plugs and engine misfires. Therefore, regular ignition service is the best way to prevent a breakdown. By choosing the \u003cstrong data-path-to-node=\"12\" data-index-in-node=\"227\"\u003eCrusader RP030009\u003c\/strong\u003e, you are choosing peace of mind. Likewise, it protects your ignition coils from the strain caused by old, high-resistance plugs. Ultimately, a small investment today prevents expensive repairs tomorrow.\u003c\/p\u003e\n\u003chr data-path-to-node=\"13\"\u003e\n\u003ch5 data-path-to-node=\"14\"\u003e\u003cstrong data-path-to-node=\"14\" data-index-in-node=\"0\"\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/h5\u003e\n\u003ch4 data-path-to-node=\"15\"\u003e\u003cstrong data-path-to-node=\"15\" data-index-in-node=\"0\"\u003eWhat engines does the Crusader RP030009 fit?\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp data-path-to-node=\"16\"\u003e\u003cspan class=\"citation-731 citation-end-731\"\u003eThis set is designed for the 8.1L (496 CID) marine engine.\u003c\/span\u003e \u003cspan class=\"citation-730 citation-end-730\"\u003eIt is commonly found in Crusader, PCM, and Mercruiser applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4 data-path-to-node=\"17\"\u003e\u003cstrong data-path-to-node=\"17\" data-index-in-node=\"0\"\u003eWhat is the correct gap for these spark plugs?\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp data-path-to-node=\"18\"\u003eThe recommended gap for the 8.1L engine is generally \u003cstrong data-path-to-node=\"18\" data-index-in-node=\"53\"\u003e0.060 inches (1.5mm)\u003c\/strong\u003e. Always verify this with your owner's manual before installation.\u003c\/p\u003e\n\u003ch4 data-path-to-node=\"19\"\u003e\u003cstrong data-path-to-node=\"19\" data-index-in-node=\"0\"\u003eHow often should I replace these platinum plugs?\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp data-path-to-node=\"20\"\u003ePlatinum plugs are very durable. However, most marine experts suggest inspecting them every 100 hours or at the start of every season.\u003c\/p\u003e\n\u003ch4 data-path-to-node=\"21\"\u003e\u003cstrong data-path-to-node=\"21\" data-index-in-node=\"0\"\u003eDoes this kit include all eight spark plugs?\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp data-path-to-node=\"22\"\u003e\u003cspan class=\"citation-729\"\u003eYes, the RP030009 is a complete kit that includes \u003c\/span\u003e\u003cstrong data-path-to-node=\"22\" data-index-in-node=\"50\"\u003e\u003cspan class=\"citation-729\"\u003e8 AC Delco platinum spark plugs\u003c\/span\u003e\u003c\/strong\u003e\u003cspan class=\"citation-729 citation-end-729\"\u003e for a full engine refresh.\u003c\/span\u003e\u003c\/p\u003e","brand":"Crusader","offers":[{"title":"Default Title","offer_id":38043209793731,"sku":"CRU-RP030009","price":162.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2712\/8720\/files\/Spark-Plug-Set-Platinum-8_1L-Crusader-RP030009.jpg?v=1776955113","url":"https:\/\/www.macombmarineparts.com\/products\/spark-plug-set-platinum-8-1l-crusader-rp030009","provider":"MacombMarineParts.com","version":"1.0","type":"link"}