Caterpillar Diesel Thirty-Five vs Caterpillar RD4

Verdict: Caterpillar Diesel Thirty-Five vs Caterpillar RD4

The Caterpillar Diesel Thirty-Five and the Caterpillar RD4 are both tractors — here is how they stack up on the figures that matter. Caterpillar Diesel Thirty-Five leads on rated power with 39 hp against 35 hp. Caterpillar RD4 is the newer design (1935 vs 1933). In short: choose the Caterpillar Diesel Thirty-Five for outright pulling power, or the Caterpillar RD4 if a tighter budget and lighter footprint matter more. Compare the full spec tables below before booking a demo.