Evergreen HB3003 Nissan 240SX Altima Frontier Xterra 2.4L DOHC KA24DE Head Bolt Set Fits: Nissan 240SX Altima Frontier Xterra 2.4L DOHC KA24DE (see description below) Made From Excellent Quality Materials and Manufactured to The Highest Quality specifications Design with Exacting Tolerances Increased Durability Properly Torque Bolts per Manufactures Specifications Follow Manufacturers Recommended Tightening Sequence, and Procedures For Head Bolt Replacement