{"product_id":"st-ngk-d7ea","title":"NGK D7EA Spark Plug","description":"\u003ch2\u003eNGK D7EA Spark Plug | Honda CB500K \/ CB550\u003c\/h2\u003e\n\u003cp\u003eThe NGK D7EA is the correct spark plug for the Honda CB500K, CB550K, and CB550F inline-four engines. Sold individually — you need four plugs per bike.\u003c\/p\u003e\n\u003ch3\u003eWhy You Need This\u003c\/h3\u003e\n\u003cp\u003eThe CB500K and CB550 use a different spark plug than the Honda twins. If you're buying an old CB500 or CB550, there's no telling what plugs are in there — and just because a plug threads in doesn't mean it's the right one. The D7EA is the Honda-specified copper-core plug for these engines. If you're doing carburetor tuning, keep a few sets on hand to read the plug tip color and gauge your fuel mixture.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable class=\"spec-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eFits Models\u003c\/th\u003e\n\u003ctd\u003eCB500K (1971–1973), CB550K (1974–1978), CB550F (1975–1977)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePlug Type\u003c\/th\u003e\n\u003ctd\u003eNGK D7EA — Copper Core\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eGap\u003c\/th\u003e\n\u003ctd\u003e0.6–0.7 mm (0.024–0.028 in.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eQty\u003c\/th\u003e\n\u003ctd\u003eSold Individually (need 4 per bike)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"NGK Spark Plugs","offers":[{"title":"Default Title","offer_id":41532950380602,"sku":"D7EA","price":3.62,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2726\/2594\/files\/Screenshot2026-07-16125113.png?v=1784231507","url":"https:\/\/shopbertsmegamall.com\/products\/st-ngk-d7ea","provider":"Berts Mega Mall","version":"1.0","type":"link"}