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

Allis Chalmers HD3
36 HP
Allis Chalmers

HD3

2.9 L Engine
Full Technical Profile →
VS
+2566.7%
Big Bud 16V-747
960 HP
Big Bud

16V-747

24.1 L Engine+924.0 HP Lead
Full Technical Profile →
Quick Takeaways:⚡ Rated Power: Big Bud 16V-747 (+924.0 HP / +2566.7%)🛢️ Displacement: Big Bud 16V-747 (+21.2 L)
Model overview
2 selected
Allis Chalmers HD3
📸 Photo
36 HP
Allis Chalmers

HD3

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
36 HP
960 HP+924.0 HP
PTO horsepower
32.53 HP★ Leader
—
Engine displacement
2.9 L
24.1 L+21.2 L
Cylinders
4 cylinders
16 cylinders
Fuel type
Diesel
Diesel
Transmission and drive
Drive system
Tracks (Crawler)
4WD
Transmission type
Two-speed power shift (4F/2R)
Power shift (6F/1R)
Forward / reverse gears
4 fwd / 2 rev
6 fwd / 1 rev
Weight and capacities
Operating weight
3,467 kg
43,092 kg+39,625 kg
Hydraulic total flow
—
65 GPM★ Leader
ASABE Field Implement Capacity Matchup
Max Subsoiler (12" depth)
1 Shanks
24 Shanks+23 Shanks
Max Disk Harrow (8 mph)
6 ft (2 m)
62 ft (19 m)+56 ft
Max Air Seeder (5.5 mph)
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)
3,780 lbs
50% Front / 50% Rear
115,200 lbs
55% Front / 45% Rear
Est. Fuel Burn (75% Load)
1.3 gal/h (4.9 L/h)
34.6 gal/h (131 L/h)
Provenance and serial decoders
Production years
1960–1968
1978
Assembly factory
West Allis, Wisconsin, USA
—
Serial decoder support