Jeep 4.0/4.0L/242 Sealed Power Hypereutectic Piston+Cast Ring Kit/Set 96-06 (3.875" Bore) CLICK ON BOX FOR OVER SIZE NEEDED BEFORE ADDING TO CART HEAD TYPE: Recessed head .116" deep RING LANDS: 1.50mm-1.50mm-4.00mm COMP. DISTANCE: 1.592" PIN DIAMETER: .931"