Spark Plug - S.42484 Enhance the performance of your tractor with the Spark Plug - S.42484 from Sparex. Designed specifically for tractors equipped with Standard Petrol and TVO engines, this spark plug features a 14 mm thread diameter and a 23 mm thread length, ensuring a perfect fit and optimal functionality. Key Features: Brand: Sparex Thread Diameter: 14 mm Thread Length: 23 mm Engine Compatibility: Standard Petrol / TVO engines Replacement For: Autolite 405 Tariff Code: 8511100090 Compatibility: This spark plug is suitable for a wide range of tractor models, including: Allis Chalmers: 170, 175, 180, 185, 190, 190XT, D19 Ford / New Holland: 2000, 2110LCG, 230A, 231, 2600, 3000, 4000, 5000, and more Massey Ferguson: 135, 35, TE20, and others Mitsubishi: S550/ELK, S650 BISON Satoh: S550/ELK, S650/BISON Manufacture Information: OEM Fitment: Lucas N21 Upgrade your tractor's ignition system with the reliable and efficient Spark Plug - S.42484. Order yours today and experience improved engine performance!