Amazon.com: Jectam Iridium Spark Plug SP546 8 Pcs Compatible with 04-08 Ford 5.4L Expedition F-150 F-250 F-350 Super Duty Truck Navigator Mountaineer PZT14F PZT1F PZT2F PZT2FF4 : Automotive
Amazon.com: NGK 97999 Spark Plug : Automotive
Amazon.com: NGK 4673 Spark Plug : Automotive
Amazon.com: NGK Single Spark Plug 4759 : Automotive
Amazon.com: NGK 6643 Spark Plug : Automotive
Amazon.com: NGK 3566 Spark Plug : Automotive
Amazon.com: NGK 6984 HT LEAD SET : Automotive
Amazon.com: MOCA Spark Plug SP413/AGSF32N fit 88-11 for Ford Ranger Taurus 3.0L, Explorer 5.0L, 88-11 for Mercury Sable 3.0L, Grand Marquis 4.6L, 98-08 for Lincoln Town Car 4.6L, 05-07 Mazda B3000 3.0L : Automotive