TractorDex
TractorDexIndex
Multi-model comparison

Side-by-side tractor comparison

Compare technical specifications, horsepower ratings, hydraulic capacities, and dimensions across all tractor models.

Head-to-Head Arena Spotlight

Direct technical match-up between flagship models

Caterpillar Seventy
77 HP
Caterpillar

Seventy

21.5 L Engine+2.0 HP Lead
Full Technical Profile →
VS
+2.7%
Caterpillar RD7
75 HP
Caterpillar

RD7

13.6 L Engine
Full Technical Profile →
Quick Takeaways:⚡ Rated Power: Caterpillar Seventy (+2.0 HP / +2.7%)🛢️ Displacement: Caterpillar Seventy (+7.9 L)
Model overview
3 selected
Caterpillar Seventy
📸 Photo
77 HP
Caterpillar

Seventy

Catalog archive
Open model sources
Caterpillar RD7
📸 Photo
75 HP
Caterpillar

RD7

Catalog archive
Open model sources
Big Bud 16V-747
📸 Photo
960 HP
Big Bud

16V-747

Catalog archive
Open model sources
Engine and power
Rated horsepower
77 HP
75 HP
960 HP+883.0 HP
PTO horsepower
—
—
—
Engine displacement
21.5 L
13.6 L
24.1 L+2.6 L
Cylinders
4 cylinders
4 cylinders
16 cylinders
Fuel type
Gasoline
Diesel
Diesel
Transmission and drive
Drive system
Tracks (Crawler)
Tracks (Crawler)
4WD
Transmission type
Gear (6F/2R)
Gear (4F/1R)
Power shift (6F/1R)
Forward / reverse gears
6 fwd / 2 rev
4 fwd / 1 rev
6 fwd / 1 rev
Weight and capacities
Operating weight
14,515 kg
9,534 kg
43,092 kg+28,577 kg
Hydraulic total flow
—
—
65 GPM★ Leader
ASABE Field Implement Capacity Matchup
Max Subsoiler (12" depth)
1 Shanks
1 Shanks
24 Shanks+23 Shanks
Max Disk Harrow (8 mph)
6 ft (2 m)
6 ft (2 m)
62 ft (19 m)+56 ft
Max Air Seeder (5.5 mph)
15 ft (5 m)
15 ft (5 m)
124 ft (38 m)+109 ft
Target Ballast & Balance
Heavy-draft standard (30/70 for 2WD, 40/60 for MFWD, 55/45 for 4WD)
8,085 lbs
50% Front / 50% Rear
7,875 lbs
50% Front / 50% Rear
115,200 lbs
55% Front / 45% Rear
Est. Fuel Burn (75% Load)
2.8 gal/h (10.6 L/h)
2.7 gal/h (10.2 L/h)
34.6 gal/h (131 L/h)
Provenance and serial decoders
Production years
1933–1937
1935–1940
1978
Assembly factory
—
—
—
Serial decoder support
Not indexed
Not indexed