ACCEL 8196 U-Groove Resistor Spark Plug Features: U-Groove Resistor Spark Plug; 14mm Thread; .708 in. Reach; Heat Range 6; 8 Pack; Height: 9.100 Width: 3.700 Length: 1.200 Weight: 0.8 Fitment: 2003/Oldsmobile/Aurora/Base Sedan 4-Door/4.0L 244Cu. In. V8 GAS DOHC Naturally Aspirated::0.050 in. Plug Gap^^2003/Mercury/Mountaineer/Base Sport Utility 4-Door/4.6L 281Cu. In. V8 GAS SOHC Naturally Aspirated::0.054 in. Plug Gap^^2003/Mercury/Marauder/Base Sedan 4-Door/4.6L 281Cu. In. V8 GAS DOHC Naturally Aspirated::0.054 in. Plug Gap^^2003/Mercury/Grand Marquis/LSE Sedan 4-Door/4.6L 281Cu. In. V8 GAS SOHC Naturally Aspirated::0.054 in. Plug Gap^^2003/Mercury/Grand Marquis/LS Sedan 4-Door/4.6L 281Cu. In. V8 GAS SOHC Naturally Aspirated::0.054 in. Plug Gap^^2003/Mercury/Grand Marquis/GS Sedan 4-Door/4.6L 281Cu. In. V8 GAS SOHC Naturally Aspirated::0.054 in. Plug Gap^^2...