Elring 18-Piece Cylinder Head Bolt Kit

This 18-piece cylinder head bolt kit is designed for Toyota Hilux LN171 models equipped with the 3L 2.8-liter diesel engine (1997-2005). The set comprises torque-to-yield (TTY) stretch bolts manufactured from high-tensile alloy steel with phosphate coating for corrosion resistance and consistent friction characteristics. The kit replaces the original cylinder head bolts during head gasket replacement or cylinder head overhaul. As TTY fasteners, these bolts are single-use only and must be replaced upon removal to ensure correct clamping load and prevent bolt fatigue failure. The set includes the specific combination of long and short bolts required for the 3L/5L engine cylinder head bolt pattern. Installation requires strict adherence to the Toyota-specified torque sequence and angle-tightening procedure. Reference OEM part numbers include 90910-02046 and 90105-12952. Compatible with aftermarket kit references ADT37812 (Blue Print) and HBK4709D.