Compatible with the following vehicles: Ford 97-98,2000-2006 Explorer Limited Engine VIN: E, SOHC, 12 Valves, For Engines With Balance Shaft Only 99,2007-2010 Explorer Limited Engine VIN: E, SOHC, 12 Valves, With Gears 2004 Explorer NBX Engine VIN: E, SOHC, 12 Valves, For Engines With Balance Shaft Only 2004 Explorer NBX Engine VIN: K, SOHC, FLEX, 12 Valves, With Gears 2000-2003 Explorer Postal Engine VIN: E, SOHC, 12 Valves, For Engines With Balance Shaft Only 2002-2003 Explorer Postal Engine VIN: K, SOHC, FLEX, 12 Valves, With Gears 97-2000 Explorer Sport Engine VIN: E, SOHC, 12 Valves, For Engines With Balance Shaft Only 97-99 Explorer XL Engine VIN: E, SOHC, 12 Valves, For Engines With Balance Shaft Only 2000-2001 Explorer XL Fleet Engine VIN: E, SOHC, 12 Valves, For Engines With Balance Shaft Only 99-2006 Explorer XLS Engine VIN: E, SOHC, 12 Valves, For Engines With Balance Shaft Only 2004-2005 Explorer XLS Sport Engine VIN: E, SOHC, 12 Valves, For Engines With Balance Shaft Only 2004-2005 Explorer XLS Sport Engine VIN: K, SOHC, FLEX, 12 Valves, With Gears 2004-2005 Explorer XLT Sport Engine VIN: E, SOHC, 12 Valves, For Engines With Balance Shaft Only 2004-2005 Explorer XLT Sport Engine VIN: K, SOHC, FLEX, 12 Valves, With Gears 2002-2005 Explorer (submodel: Eddie Bauer, Limited, XLS, XLT) Engine VIN: K, SOHC, FLEX, 12 Valves, With Gears 2007-2010 Explorer (submodel: Eddie Bauer, XLT) Engine VIN: E, SOHC, 12 Valves, With Gears 97-2006 Explorer (submodel: Eddie Bauer, XLT) Engine VIN: E, SOHC, 12 Valves, For Engines With Balance Shaft Only 2005 Explorer Sport Trac Adrenalin Engine VIN: E, SOHC, 12 Valves, For Engines With Balance Shaft Only 2005 Explorer Sport Trac Adrenalin Engine VIN: K, SOHC, FLEX, 12 Valves, With Gears 2001 Explorer Sport Trac Base Engine VIN: E, SOHC, 12 Valves, For Engines With Balance Shaft Only 2002 Explorer Sport Trac XL Engine VIN: E, SOHC, 12 Valves,