Champion RDZ19H (940) Copper Plus Small Engine Replacement Spark Plug This part is compatible with models including; TB465SS 41BDT49C063 TB415CS 41AD890A034 21A5144R799 21AS144R799 41AD260G401 890 41CD875A034 875 990R 315742260 970R 316292711 41ADT47C063 31629270 960R 41ADT42C063 875R TB425CS 41BDT47C063 41ADT41C711 825R 41ADTB4G063 11A-436T063 21A-144R799 YM26CO 11A-436N063 41ADT46C711 41CD825A034 890R TB4000 316292701 29270 This is a manufacturer substitution. Part may differ in appearance but is a functional equivalent to prior parts including; 180852B 791-180852B DP180852 DP180852 180852 180852 180852 180852 Genuine Original Equipment Manufacturer (OEM) part. Compatible Brands: Troybilt Ryobi Craftsman Mtd This spark plug (part number RDZ19H) is for lawn and garden equipment engines Wear work gloves to protect your hands when installing this part