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

Deere 4520 (1969–1970)
133 HP
Deere

4520

6.6 L Engine
Full Technical Profile →
VS
+478.9%
Deere 9RX 770
770 HP
Deere

9RX 770

18 L Engine+637.0 HP Lead
Full Technical Profile →
Quick Takeaways:⚡ Rated Power: Deere 9RX 770 (+637.0 HP / +478.9%)🛢️ Displacement: Deere 9RX 770 (+11.4 L)
Model overview
2 selected
Deere 4520 (1969–1970)
📸 Photo
133 HP
Deere

4520

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

9RX 770

Catalog archive
Open model sources
Engine and power
Rated horsepower
133 HP
770 HP+637.0 HP
PTO horsepower
123.39 HP
335 HP+211.6 HP
Engine displacement
6.6 L
18 L+11.4 L
Cylinders
6 cylinders
6 cylinders
Fuel type
Diesel
Diesel
Transmission and drive
Drive system
Unknown
Tracks (4-Track)
Transmission type
Partially synchronized (8F/4R)
Full power shift (21F/11R)
Forward / reverse gears
8 fwd / 4 rev
21 fwd / 11 rev
Weight and capacities
Operating weight
—
33,566 kg
Hydraulic total flow
—
—
ASABE Field Implement Capacity Matchup
Max Subsoiler (12" depth)
3 Shanks
19 Shanks+16 Shanks
Max Disk Harrow (8 mph)
9 ft (3 m)
50 ft (15 m)+41 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)
19,285 lbs
30% Front / 70% Rear
84,000 lbs(OEM Cap)
50% Front / 50% Rear
Est. Fuel Burn (75% Load)
4.8 gal/h (18.2 L/h)
27.7 gal/h (104.9 L/h)
Provenance and serial decoders
Production years
1969–1970
2025
Assembly factory
Waterloo, Iowa, USA
—
Serial decoder support
Not indexed