Caterpillar RD4 vs Caterpillar Twenty-Eight

Verdict: Caterpillar RD4 vs Caterpillar Twenty-Eight

The Caterpillar RD4 and the Caterpillar Twenty-Eight are both tractors — here is how they stack up on the figures that matter. Caterpillar RD4 leads on rated power with 35 hp against 31 hp. Caterpillar RD4 is the newer design (1935 vs 1933). In short: choose the Caterpillar RD4 for outright pulling power, or the Caterpillar Twenty-Eight if a tighter budget and lighter footprint matter more. Compare the full spec tables below before booking a demo.