{"product_id":"ngk-6431-bu8h-surface-gap-spark-plug","title":"NGK 6431 BU8H Surface Gap Spark Plug","description":"\u003cp\u003eNGK 6431 BU8H Surface Gap Spark Plug.\u003c\/p\u003e\n\n\u003cp\u003eNGK's Surface Gap Plugs are Nearly Immune to Pre-Ignition, and Usually Require a Special High Energy Ignition System. They Can be Susceptible to Fouling, Especially in Colder Applications, but May be Necessary in High Compression Applications.\u003c\/p\u003e\n\n\u003cp\u003eFits Mariner and Mercury outboard engines.\u003c\/p\u003e\n\n\u003cp\u003eSpecifications:\u003cbr\u003e\nShell\u003c\/p\u003e\n\n\u003cp\u003eThread Size: 14mm\u003c\/p\u003e\n\n\u003cp\u003eThread Pitch: 1.25mm\u003c\/p\u003e\n\n\u003cp\u003eSeat Type: Gasket\u003c\/p\u003e\n\n\u003cp\u003eResistor: No\u003c\/p\u003e\n\n\u003cp\u003eReach: 12.7mm (1\/2\")\u003c\/p\u003e\n\n\u003cp\u003eHex Size: 13\/16\" (21mm)\u003c\/p\u003e\n\n\u003cp\u003eTerminal Type: Solid\u003c\/p\u003e\n\n\u003cp\u003eOverall Height: ISO\u003c\/p\u003e\n\n\u003cp\u003eGap: .016\" (0.4mm)\u003c\/p\u003e\n\n\n\n\u003cp\u003eCenter Electrode\u003c\/p\u003e\n\n\u003cp\u003eMaterial: Nickel\u003c\/p\u003e\n\n\u003cp\u003eType: Standard\u003c\/p\u003e\n\n\u003cp\u003eSize: 2.5mm\u003c\/p\u003e\n\n\u003cp\u003eProjection: Non-Projected\u003c\/p\u003e\n\n\n\n\u003cp\u003eGround Electrode\u003c\/p\u003e\n\n\u003cp\u003eMaterial: Nickel\u003c\/p\u003e\n\n\u003cp\u003eType: Surface Discharge\u003c\/p\u003e\n\n\n\n\u003cp\u003eTorque Specs: Cast Iron: 18-25.3 lb. ft. Aluminum: 18-21.6 lb. ft.\u003c\/p\u003e\n\n\u003cp\u003eBrand: NGK\u003c\/p\u003e\n\n\u003cp\u003eHeat Range: 8\u003c\/p\u003e","brand":"NGK","offers":[{"title":"Default Title","offer_id":51153754489146,"sku":"NGK-BU8H","price":4.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0816\/9612\/9338\/files\/NGKBU8H__29322.1744747691.jpg?v=1744750516","url":"https:\/\/fishermans-marine.com\/products\/ngk-6431-bu8h-surface-gap-spark-plug","provider":"Fisherman's marine","version":"1.0","type":"link"}