Set of 8 Red DG511 Ignition Coils and Motorcraft SP515 SP546 Spark Plugs Compatible with Ford Expedition F150 F250 Lincoln Mark LT Navigator Replacement for 3L3E12A366CA 5C1584 C1541 FD508 DG511 Please note that the SP546 is an updated version of the SP515. Ford will no longer carry the SP515. This is a set of eight (8) brand new, high quality, OE style direct mount copper ignition coils with boots and springs and eight (8) Motorcraft SP515/SP546 spark plugs. Type: 8 ignition coils with copper windings, plus 8 Motorcraft spark plugs. MOTORCRAFT #SP515 SP546 FORD #3L3E12A366CA, 3L3Z12029BA STANDARD #FD508 BWD #E508 WELLS #C1541 COILS ARE COMING READY TO INSTALL. INCLUDES BOOT AND SPRINGS. NO NEED TO PURCHASE ANY ADDITIONAL PARTS. THIS MAKES INSTALLATION VERY QUICK AND EASY. Compatible with Ford and Lincoln: 2005-2008 Ford Expedition 5.4L V8 2004-2008 Ford F150 5.4L V8 2005-2008 Ford F250 Super Duty 5.4L V8 2005-2008 Ford F350 Super Duty 5.4L V8 2006-2008 Lincoln Mark LT 5.4L V8 2005-2008 Lincoln Navigator 5.4L V8