BDFHYK Set of 8 Platinum Spark Plug Compatible with Expedition F150 F250 F350 F450,Lincoln Mark LT Navigator,5.4L 6.8L V8 V10 Engine Replacement for SP515 SP546 Item Description ?Precautions for Purchase?:Please confirm the compatibility according to the year/make/model of your vehicle and the OE number of the replaceable part. ?Spark Plug Features?: BDFHYK spark plugs have superior ignition performance, with faster and more sensitive ignition jumps and significantly improved power performance. Combustion efficiency is fuller, longer service life. Economic service life of 30000-40000 kilometers. ?Relive Performance?:OE standard performance and durability TS16949 certified manufacturer. All center electrodes are made from extremely fine iridium electrodes for good ignition performance. Insulators are made from isostatic ceramics for high density, strength, and good insulation. ?Compatible Part Numbers?:Spark Plug compatible to 13292-9499451 F1000-399477-MTR HT15 MOFSP515 PZH-14-F PZH14F SP507 SP546 SP-546.SP515. ?Buy with Confidence?: Exquisite craft,100% new and high quality auto parts,OE level durability. ? See more product details Payment We accept payment only through PAYPAL Shipping We ship products worldwide through standard express courier service, it will reach within 7 to 10 days to abroad buyers, we ship the product after recieved clear payment and give full information about shipment to the buyer Return We accept product return 25 days from delivery date but product should be in original condition.