Production | |
| Manufacturer | Wheel Horse (a part of Toro) |
| Type | Garden tractor |
| Factory | South Bend, Indiana, USA |
Variants | |
| standard | |
| commercial-duty | |
Mechanical | |
| Chassis | 4x2 2WD |
| Steering | manual |
| Brakes | mechanical band |
| Cab | Open operator station. |
Power Take-off (PTO) | |
| Mid PTO | independent |
| Clutch | mechanical |
520-H Serial Numbers | |
| Location: | Serial number plate on the rear fender, below the seat. Model codes in parentheses. |
| 1988 | 520-H (31-20OE01) |
| 1989 | 520-H (31-20OE02) |
| 1990 | -unknown- |
| 1991 | -unknown- |
| 1992 | -unknown- |
| 1993 | 39000001 (73501) |
| 1994 | 49000001 (73501) |
| 1995 | 59000001 (73501) |
| 1996 | 69000001 (73501) |
| 1996 | 69000001 (73502) |
| 1997 | 7900001 (73502) |
Electrical | |
| Ground | negative |
| Charging system | alternator |
| Charging amps | 20 |
| Battery CCA | 260 |
| Battery volts | 12 |
Engine Detail | |
| Onan P220G | |
| gasoline | |
| 2-cylinder | |
| air-cooled | |
| Displacement | 781 cc 47.7 ci |
| Bore/Stroke | 3.2580x2.875 inches 83 x 73 mm |
| Power | 20 hp 14.9 kW |
| Compression | 7.0:1 |
| Rated RPM | 3600 |
| Idle RPM | 1400-3600 |
| Starter volts | 12 |
| Oil capacity | 1.7 qts 1.6 L |
| Sparkplug | Champion RS14YC |
| Sparkplug gap | 0.025 inches 0.635 mm |
Transmission | |
| Transmission | Eaton 1100-032 |
| Type | belt-driven hydrostatic |
| Gears | infinite forward and reverse |
| Oil capacity | 5 qts 4.7 L |
| Oil type | SAE 10W-30 |
Dimensions | |
| Length | 65 inches 165 cm |
| Width | 38 inches 96 cm |
| Height | 45.5 inches 115 cm |
| Weight | 646 lbs 293 kg |