UNSHIELDED SPARK PLUGS • $395 • PRICED TO SELL • 12 Autolite 18A1 Unshielded Spark Plugs New old stock. These are the same type plugs as Champion M41E and C26, see chart above. They are for cubs champs radials etc. I ran these in my Continental W670 engine, they run better and start easier. • Contact Tom Collier , Owner - located Leesburg, GA 31763 United States • Telephone: ---------- • ---------- • Posted August 9, 2025 • Show all Ads posted by this Advertiser • Recommend This Ad to a Friend • Email Advertiser • Save to Watchlist • Report This Ad • View Larger Images