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

Cletrac BD
53 HP
Cletrac

BD

4.9 L Engine
Full Technical Profile →
VS
+5.7%
Allis Chalmers A
56 HP
Allis Chalmers

A

8.4 L Engine+3.0 HP Lead
Full Technical Profile →
Quick Takeaways:⚡ Rated Power: Allis Chalmers A (+3.0 HP / +5.7%)🛢️ Displacement: Allis Chalmers A (+3.5 L)
Model overview
3 selected
Cletrac BD
📸 Photo
53 HP
Cletrac

BD

Catalog archive
Open model sources
Allis Chalmers A
📸 Photo
56 HP
Allis Chalmers

A

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

9RX 770

Catalog archive
Open model sources
Engine and power
Rated horsepower
53 HP
56 HP
770 HP+714.0 HP
PTO horsepower
—
—
335 HP★ Leader
Engine displacement
4.9 L
8.4 L
18 L+9.6 L
Cylinders
6 cylinders
4 cylinders
6 cylinders
Fuel type
Diesel
Gasoline
Diesel
Transmission and drive
Drive system
Tracks (Crawler)
2WD
Tracks (4-Track)
Transmission type
Gear (4F/2R)
Non-synchronized gear (4F/1R)
Full power shift (21F/11R)
Forward / reverse gears
4 fwd / 2 rev
4 fwd / 1 rev
21 fwd / 11 rev
Weight and capacities
Operating weight
4,263 kg
3,254 kg
33,566 kg+29,303 kg
Hydraulic total flow
—
—
—
ASABE Field Implement Capacity Matchup
Max Subsoiler (12" depth)
1 Shanks
1 Shanks
19 Shanks+18 Shanks
Max Disk Harrow (8 mph)
6 ft (2 m)
6 ft (2 m)
50 ft (15 m)+44 ft
Max Air Seeder (5.5 mph)
15 ft (5 m)
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)
5,565 lbs
50% Front / 50% Rear
8,120 lbs
30% Front / 70% Rear
84,000 lbs(OEM Cap)
50% Front / 50% Rear
Est. Fuel Burn (75% Load)
1.9 gal/h (7.2 L/h)
2 gal/h (7.6 L/h)
27.7 gal/h (104.9 L/h)
Provenance and serial decoders
Production years
1936–1956
1936–1942
2025
Assembly factory
—
West Allis, Wisconsin, USA
—
Serial decoder support
Not indexed