John Deere 7520 Horsepower, Price, Specs, Reviews 2023

John Deere 7520 Price, Reviews, Specs, Engine Oil Capacity, Weight, Serial Numbers, Attachments, History, Features & Pictures

John Deere 7520 Tractor is equipped with a John Deere turbocharged inter-cooled diesel 6-cylinder liquid-cooled inline engine, which delivers 160 hp (119.3 kW) Drawbar (claimed) power at rated rpm 2100.

The John Deere 7520 Tractor featured a John Deere 8.7L 6-cyl diesel engine, 4×4 articulated 4WD, hydrostatic power steering, partially synchronized transmission, integral hydraulic wet disc brakes, and 16790 to 22320 pounds weight and 76 qts (71.9 L) Oil capacity.

Now, let’s find out the John Deere 7520 4WD Tractor Price, Parts Specs, Reviews, Serial Numbers & Images.

John Deere 7520 Price 

John Deere 7520 Horsepower, Price, Specs, Reviews

John Deere 7520 Original Price: $26,400 (1975)

John Deere 7520 Specs


Manufacturer John Deere
Type Four-wheel Drive (4WD) tractor
Factory Waterloo, Iowa, USA
Total built 4,661
Original price $26,400 (1975 )

The John Deere 7520 Serial Number

Year  Serial Number
1972 1000
1973 1615
1974 3054
1975 4999
Final 5705

John Deere 7520 Engine

Engine John Deere turbocharged inter-cooled diesel 6-cylinder liquid-cooled inline
Displacement 531 ci
8.7 L
Bore/Stroke 4.75×5.00 inches
121 x 127 mm
Fuel system direct injection
Air cleaner aspirator and dual paper elements
Compression 15.4:1
Rated RPM 2100
Operating RPM 1500-2100
Firing order 1-5-3-6-2-4
Starter volts 12
Oil capacity 26 qts
24.6 L
Coolant capacity 40 qts
37.9 L
Intake valve clearance 0.018 inches
0.457 mm
Exhaust valve clearance 0.028 inches
0.711 mm


Fuel 156 gal
590.5 L *
Hydraulic system 19 gal
71.9 L

John Deere 7520 Power

Drawbar (claimed) 160 hp
119.3 kW
PTO (claimed) 175 hp
130.5 kW
Drawbar (tested) 160.46 hp
119.7 kW
PTO (tested) 175.82 hp
131.1 kW


Chassis 4×4 articulated 4WD
Steering hydrostatic power
Brakes integral hydraulic wet disc
Cab Cab standard. Air-conditioning optional.
Transmissions 8-speed partially synchronized
  16-speed partially synchronized

John Deere 7520 Transmission

Syncro-Range Transmission

Transmission Syncro-Range
Type partially synchronized
Gears 8 forward and 2 reverse
Oil capacity 76 qts
71.9 L

Syncro-Range Hi-Lo Transmission

Transmission Syncro-Range Hi-Lo
Type partially synchronized
Gears 16 forward and 4 reverse
Oil capacity 76 qts
71.9 L


Type closed center
Capacity 19 gal
71.9 L
Pressure 2250 psi
155.1 bar
Pump flow 21 gpm
79.5 lpm


Rear PTO transmission
Rear RPM 1000

John Deere 7520 Dimensions

Wheelbase 120 inches
304 cm
Length 220 inches
558 cm
Width 95.9 inches
243 cm
Height (cab) 123 inches
312 cm
  131 inches
332 cm *
Shipping weight 16790 lbs
7615 kg
Operating weight 22320 lbs
10124 kg

John Deere 7520 Tires

Ag front 18.4-34
Ag rear 18.4-34
Ag front 23.1-30
Ag rear 23.1-30

John Deere 7520 Weight

Operating 13280 lbs
6023 kg
Max capacity 22035 lbs
9995 kg
Max Drawbar 4955 lbs
2247 kg
Max front axle 9695 lbs
4397 kg
  16315 lbs
7400 kg (with loader)
Max rear axle 17185 lbs
7795 kg


Ground negative
Charging system alternator
Charging amps 55
Charging volts 12
Batteries 2
Battery volts 6
Battery AH 204

John Deere 7520 Attachments

John Deere 741 Loader

Height (to pin) 172.5 inches
438 cm
Clearance, dumped bucket 139.3 inches
353 cm
Dump reach 38.2 inches
97 cm
Dump angle 58.9°

Clearance, level bucket 167 inches
424 cm
Reach at ground 113.4 inches
288 cm
Breakout force (at pin) 7779 lbs
3528 kg
Breakout force (at 800mm) 5913 lbs
2682 kg
Breakout force (bucket) 7172 lbs
3253 kg
Lift to full height (at pin) 4617 lbs
2094 kg
Lift to full height (at 800mm) 3527 lbs
1599 kg
Lift to 1.5m (at pin) 6259 lbs
2839 kg
Lift to 1.5m (at 800mm) 4966 lbs
2252 kg
Bucket width 73 inches
185 cm
  96 inches
243 cm

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John Deere 7520 Problems

John Deere vehicles are widely sought after all over the world due to their reputation for dependability. Users, however, frequently run into issues due to the nature of the vehicle.

Let’s talk about typical issues with the John Deere 7520, shall we?
The engine on a John Deere 7520 frequently has problems, including failing to start, failing to rotate, knocking, and overheating.

This tractor has transmission problems, including noisy front and rear axles. Possible faults with the steering include a lack of responsiveness when turning, or the steering wheel spinning freely.

The goal of this article is to help you diagnose and repair a few typical issues with your John Deere 7520.

The engine Won’t Start

The 7520, like other John Deere models, frequently experiences issues with starting the engine. If the engine won’t start, you can hear a clicking noise or nothing at all when you turn the key.

Additionally, you may hear the engine crank, but it will not start. Find the source of the issue and address it as quickly as feasible.

Reason 1: Wrong Valve Timing 

The incorrect timing of the valves is the primary cause of this problem. Valve timing adjustment is the process of synchronizing the opening and closing of the valves of an internal combustion engine with the movement of the pistons within the cylinders.


The timing of the valves must be adjusted. It’s possible to fine-tune the valve timing on your own with just a few simple adjustments:

  • First, all of the idler gear needs to be taken off. Find the 2, 3, and 1 on the idler gear.
  • Idler gear 1 must now be fastened to the camshaft, followed by idler gear 2.
  • The third idler then needs to be linked to the second idler.

Reason 2: Worn Cylinder Bores  

The second most common reason is worn cylinder bores. Combustion chamber gases and fluids are kept out by a cylinder bore seal.

Worn cylinder bores can cause an engine to lose compression, which in turn reduces engine power and makes it difficult, if not impossible, to start.


Rebuilding the engine from the ground up should fix the problem. The engine needs to be taken apart, the broken parts replaced or repaired, and then put back together.

Engine repair is a complex and scientific process, and fixing a worn cylinder bore requires specific tools and knowledge of the engine.

Reason 3: Starter Turns Bad

If a diesel engine would not turn over, the problem is often with the starter. In order to get your car up and running, you need a reliable starter. To get a vehicle with a faulty starter relay or motor to move, you will need a jumpstart or a tow.


The starter needs to be inspected first. If fixing the problem is all that’s needed, this video will show you how to do it.

Reason 4: Damaged Piston Rings

The piston rings could be damaged or worn, preventing the engine from starting. Check for wear and tear and fraying.


To rectify this problem, the piston rings must be replaced. It is recommended that a technician perform the replacement. If you are competent in the necessary skills, you can handle it independently.

John Deere 7520 Review Video

Final Words

John Deere 7520 FAQ 

What is the horsepower of John Deere 7520?

John Deere 7520 has a horsepower range of 160 horsepower depending on the model.

What type of engine does John Deere 7520 have?

John Deere 7520 has a 6-cylinder John Deere PowerTech engine that meets Tier 3 emission standards.

What is the transmission type of John Deere 7520?

John Deere 7520 comes with a 16-speed PowrQuad Plus transmission or a 20-speed AutoQuad Plus transmission.

What is the maximum speed of John Deere 7520?

The maximum speed of John Deere 7520 is 40 km/h (25 mph) depending on the model.

What is the fuel capacity of John Deere 7520?

John Deere 7520 has a fuel capacity of 156 gals 590.5 L * depending on the model.

What is the weight of John Deere 7520?

The weight of John Deere 7520 ranges from 16790 to 22320 pounds depending on the model.

What is the turning radius of John Deere 7520?

The turning radius of John Deere 7520 is approximately 15.1 ft (5 m).

What are the standard features of John Deere 7520?

John Deere 7520 comes with features such as a three-point hitch, hydraulic power steering, four-wheel drive, and a deluxe air-ride seat.

What are the optional features of John Deere 7520?

Optional features of John Deere 7520 include a front loader, a front hitch, a front PTO, and a GPS system.

What year did John Deere make 7520?

Deere made the 7520 4WD model just a few years, from 1972 – 1975.