Deutz-Allis 1918 Ultima vs Yamaha YT6800
Verdict: Deutz-Allis 1918 Ultima vs Yamaha YT6800
The Deutz-Allis 1918 Ultima and the Yamaha YT6800 are both lawn tractors — here is how they stack up on the figures that matter. Both are rated at the same 18 hp. Yamaha YT6800 is the lighter machine (244 kg vs 374 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. Deutz-Allis 1918 Ultima holds more fuel (16.1 L vs 9.5 L) for longer stints between fills. Yamaha YT6800 is the newer design (1989 vs 1987). Use the full side-by-side spec tables below to weigh the details against your own operation, and confirm with a dealer demo.
Fit score weighs budget, operation size, crop match and data confidence against the details above. It’s guidance, not advice — always confirm with a dealer demo.