{"product_id":"denso-iridium-zundkerze-iw31","title":"DENSO Iridium Spark Plug IW31","description":"DENSO Iridium Spark Plug IW31 (anti-interference), with a thread diameter of 14 mm (long thread). Features the world’s thinnest center electrode, measuring just 0.4 mm in diameter. The U-shaped notched ground electrode concentrates the spark, resulting in a stronger spark while requiring less current. Additional benefits include easier starting, better acceleration, and lower fuel consumption. The extremely high melting point of iridium (2500°C) ensures a long service life. The built-in 5 kΩ monolithic resistor provides spark suppression.  The DENSO IW 31 spark plug is designed for use at temperatures ranging from 25°C to 35°C. It is suitable for many 2-stroke kart engines (e.g., Rotax MAX) and motorcycles.  Type: IW31 (Iridium) Thread: M14 x 1.25 Thread length: 19 mm Hex: 22 mm spanner size Electrode gap: 0.7 mm Temperature range IW31: 25°C to 35°C  Comparable to the following spark plugs:   DENSO: W31ES-U; W31ESR-U; W31ES-ZU  NGK: BPR10ES; BR10EIX","brand":"keep-racing","offers":[{"title":"Default Title","offer_id":53428637335899,"sku":"41686","price":23.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1020\/4692\/5147\/files\/modul_36615869-a989-4bf6-af04-bf5e620042fa.jpg?v=1785313078","url":"https:\/\/keep-racing.com\/en-eu\/products\/denso-iridium-zundkerze-iw31","provider":"keep-racing, we keep your heart racing","version":"1.0","type":"link"}