{"product_id":"ngk-54409-spark-plug-wire-set","title":"NGK 54409 Spark Plug Wire Set","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\u003cp\u003eNGK Spark Plug Wire Set 54409 is a specific-fit ignition wire set built for classic Mercedes-Benz applications. It uses silicone insulation, tinned copper core material, and noise suppression to support stable spark delivery and reduced electrical interference.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eSpecific-fit spark plug wire set for direct application matching\u003c\/li\u003e\n\u003cli\u003eSilicone insulation for heat resistance and flexible routing\u003c\/li\u003e\n\u003cli\u003eTinned copper core for consistent conductivity\u003c\/li\u003e\n\u003cli\u003eNoise suppression type included to help reduce ignition interference\u003c\/li\u003e\n\u003cli\u003eBlue insulation for easy visual identification\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Description\u003c\/h2\u003e\u003cp\u003eNGK 54409 is a spark plug wire set engineered for Mercedes-Benz 250 and Mercedes-Benz 250S applications. The wire set combines silicone insulation with a tinned copper core, giving it the construction expected in a quality ignition service part. As part of the NGK Spark Plug Wire Set line, it reflects NGK’s focus on OE-level ignition components and broad coverage for domestic and import vehicles. This part cross-references Four Seasons 54409 for the same application.\u003c\/p\u003e\u003ch2\u003eWhat It Is Used For\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRestoring spark delivery when old wires have worn insulation or internal resistance issues\u003c\/li\u003e\n\u003cli\u003eReducing ignition noise that can affect engine operation\u003c\/li\u003e\n\u003cli\u003eReplacing cracked, brittle, or heat-damaged wire sets\u003c\/li\u003e\n\u003cli\u003eAddressing misfire symptoms caused by degraded ignition wire performance\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eVerify the wire routing and terminal locations before installation. Match the specific-fit layout to the original ignition configuration on the vehicle, and inspect related ignition components for wear while servicing the wire set. Confirm fitment by model and year before ordering.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eNGK brings more than 80 years of automotive ignition experience and manufactures premium ignition products to meet OE standards. The brand’s OE legacy and global manufacturing focus support consistent quality in replacement ignition parts.\u003c\/p\u003e","brand":"NGK","offers":[{"title":"Default Title","offer_id":53725798891701,"sku":"BCDP-54409","price":66.94,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/NG_54409_Fro.jpg?v=1794211099","url":"https:\/\/www.partcatalog.com\/products\/ngk-54409-spark-plug-wire-set","provider":"PartCatalog","version":"1.0","type":"link"}