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
+2038.9%
Deere 9RX 770
770 HP
Deere

9RX 770

18 L Engine+734.0 HP Lead
Full Technical Profile →
Quick Takeaways:⚡ Rated Power: Deere 9RX 770 (+734.0 HP / +2038.9%)🛢️ Displacement: Deere 9RX 770 (+15.1 L)
Model overview
2 selected
Allis Chalmers HD3
📸 Photo
36 HP
Allis Chalmers

HD3

Catalog archive
Open model sources
Deere 9RX 770
📸 Photo
770 HP
Deere

9RX 770

Catalog archive
Open model sources
Engine and power
Rated horsepower
36 HP
770 HP+734.0 HP
PTO horsepower
32.53 HP
335 HP+302.5 HP
Engine displacement
2.9 L
18 L+15.1 L
Cylinders
4 cylinders
6 cylinders
Fuel type
Diesel
Diesel
Transmission and drive
Drive system
Tracks (Crawler)
Tracks (4-Track)
Transmission type
Two-speed power shift (4F/2R)
Full power shift (21F/11R)
Forward / reverse gears
4 fwd / 2 rev
21 fwd / 11 rev
Weight and capacities
Operating weight
3,467 kg
33,566 kg+30,099 kg
Hydraulic total flow
—
—
ASABE Field Implement Capacity Matchup
Max Subsoiler (12" depth)
1 Shanks
19 Shanks+18 Shanks
Max Disk Harrow (8 mph)
6 ft (2 m)
50 ft (15 m)+44 ft
Max Air Seeder (5.5 mph)
15 ft (5 m)
98 ft (30 m)+83 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
84,000 lbs(OEM Cap)
50% Front / 50% Rear
Est. Fuel Burn (75% Load)
1.3 gal/h (4.9 L/h)
27.7 gal/h (104.9 L/h)
Provenance and serial decoders
Production years
1960–1968
2025
Assembly factory
West Allis, Wisconsin, USA
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Serial decoder support
Not indexed