lx188John Deere LX188 Engine Repair Specifications Cylinder Block Cylinder compression ..... 12.0 kgcm2 (170 psi) Cylinder Bore Standard I.D ..... 66.98-67.00 mm (2.637-2.638 in.) Cylinder Bore Maximum I.D ..... 67.06 mm (2.640Quality Aftermarket Replacement. Ensure your John Deere LX178 or LX188 functions at its peak with our Upper Lower Hood Kit. Desned specifically for liquid-cooled models, this replacement part matches or exceeds