Hydro Pump, Hydro Gear / Exmark 109-4988Pack Size:1Ariens 21545201, Exmark 103-4247, Exmark 103-5490, Exmark 106-5490, Exmark 109-4988, Exmark 103-3524, Exmark 103-4883, Exmark 103-0465, Exmark 103-0287, Hydro Gear BDP-10A-437, Hydro Gear PG-1GQQ-DY1X-XXXX, Scag 483098, Toro 103-0288, Toro 103-3523J. Thomas BDP-10A-437, Rotary 11765Exmark Turf Tracer 6 months parts and labor warranty from date of installation, World leader in lawn and garden industry, Proven performance using patented technology, Guaranteed quality for less, For proper ordering, reference Hydro Gear part number stamped on hydro pump, When ordering and replacing a hydro pump, always replace the wheel motor and lines, flush the tanks and install a new oil filter. Not doing so could cause the hydro pump to fail due to contamination in the system.