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

Montana R3644
38.5 HP
Montana

R3644

1.8 L Engine
Full Technical Profile →
VS
+14.3%
McCormick Intl GM45
44 HP
McCormick Intl

GM45

2 L Engine+5.5 HP Lead
Full Technical Profile →
Quick Takeaways:⚡ Rated Power: McCormick Intl GM45 (+5.5 HP / +14.3%)🛢️ Displacement: McCormick Intl GM45 (+0.2 L)
Model overview
2 selected
Montana R3644
📸 Photo
38.5 HP
Montana

R3644

Catalog archive
Open model sources
McCormick Intl GM45
📸 Photo
44 HP
McCormick Intl

GM45

Catalog archive
Open model sources
Engine and power
Rated horsepower
38.5 HP
44 HP+5.5 HP
PTO horsepower
29 HP
40 HP+11.0 HP
Engine displacement
1.8 L
2 L+0.2 L
Cylinders
4 cylinders
4 cylinders
Fuel type
Diesel
Diesel
Transmission and drive
Drive system
4WD
4WD
Transmission type
Hydrostatic (12-speed)
Creeper (16-speed)
Forward / reverse gears
12 fwd / — rev
16 fwd / — rev
Weight and capacities
Operating weight
1,230 kg
1,450 kg+220 kg
Hydraulic total flow
—
12.6 GPM★ Leader
ASABE Field Implement Capacity Matchup
Max Subsoiler (12" depth)
1 Shanks0
1 Shanks0
Max Disk Harrow (8 mph)
6 ft (2 m)0
6 ft (2 m)0
Max Air Seeder (5.5 mph)
15 ft (5 m)0
15 ft (5 m)0
Target Ballast & Balance
Heavy-draft standard (30/70 for 2WD, 40/60 for MFWD, 55/45 for 4WD)
3,661 lbs(Est. Cap)
40% Front / 60% Rear
4,316 lbs(Est. Cap)
40% Front / 60% Rear
Est. Fuel Burn (75% Load)
1.4 gal/h (5.3 L/h)
1.6 gal/h (6.1 L/h)
Provenance and serial decoders
Production years
2007–2010
2011–2021
Assembly factory
—
—
Serial decoder support
Not indexed
Not indexed