Ariens lawn tractors S-18H vs Kubota F3990

Verdict by the numbers

• The Kubota F3990 is more powerful than the Ariens lawn tractors S-18H: 39 HP versus 18 HP (+21 HP, +117%).
• The Kubota F3990 is the more recent model: production started in 2014, versus 1977 for the Ariens lawn tractors S-18H.
• The Kubota F3990 is heavier: 778 kg versus 405 kg for the Ariens lawn tractors S-18H.
• The Kubota F3990 has the wider mower deck: 60" versus 42".