Front - 11 x 6 in. (27.9 x 12.7 cm)
Rear - 18 x 7.5 in. (45.7 x 19.1 cm)
The gross horsepower of these engines was laboratory rated by the engine manufacturer in accordance with SAE J1940\. As configured to meet safety, emission and operating requirements, the actual engine horsepower on these mowers will be significantly lower.