For Tier II engines w/ 4 valves per cylinder. Verify piston number before ordering.Includes:• (1) HCTR116383 Cylinder Sleeve• (1) HCTRE515037 Piston• (1) HCTRE66820 Piston Ring Set• (1) HCTAR65507 O-Ring KitThe HCTRE516227 Cylinder Kit, Tier II Engines fits equipment brands such as: John Deere