Fits 310C BH Boom Cylinder, 310D Stabilizer, Swing, and Crowd (Dipper) Cylinders, 310SG, 310SJ, 310SK BH Bucket Cylinders, 410E & 410G BH Bucket Cylinder and Stabilizer Cylinders, 410J & 410K BH Bucket Cylinder, 710G & 710J Boom Lift Cylinders
Fits 750C, 750C-II, 850C, 850C-II Lift Cylinders
Fits 444H, 444J (Z-Bar), 444K (PowerllelTM and Z-Bar) Boom Cylinders, TC44H Bucket Cylinder
Tech Data 100mm (3.93in) Bore Kit
OEM Reference AH212101 and AH149844