John Deere 8630

John Deere 8630 Four-wheel Drive (4WD) tractor Technical Specifications

John Deere 8630 is a Row-Crop tractor that was produced by the John Deere between 1975 – 1978.

Below you will find detailed technical specifications for John Deere 8630 covering engine types, horsepower ratings, weight, height, fuel type and tank volume, oil capacity and type, hydraulic system diagram, wiring diagram, battery specs, etc.

John Deere 8630 Production

Manufacturer: John Deere
Type: Four-wheel Drive (4WD) tractor
Factory: Waterloo, Iowa, USA
Original price: $53,000 (1978 )

John Deere 8630 Power

Engine: 275 hp
205.1 kW
PTO (claimed): 225 hp
167.8 kW
Drawbar (tested): 198.12 hp
147.7 kW
PTO (tested): 225.59 hp
168.2 kW

John Deere 8630 Electrical

Ground: negative
Charging system: alternator
Batteries: 2
Battery CCA: 975
Battery volts: 6

John Deere 8630 Mechanical

Chassis: 4×4 articulated 4WD
Steering: hydraulic power
Brakes: hydraulic wet disc
Cab: Sound-Gard cab standard. Optional air-conditioning.
Transmission: 16-speed partial power shift


Fuel: 156 gal
590.5 L
Hydraulic system: 26 gal
98.4 L


Type: closed center constant pressure
Capacity: 26 gal
98.4 L
Valves: 2
Pump flow: 33 gpm
124.9 lpm

Tracktor Hitch

Rear Type: III

Power Take-off (PTO)

Rear PTO: independent
Rear RPM: 1000
Engine RPM: 2100

John Deere 8630 Engine detail

Engine Detail
John Deere
turbocharged diesel
Displacement: 619 ci
10.1 L
Bore/Stroke: 5.12×5.00 inches
130 x 127 mm
Power: 275 hp
205.1 kW
Air cleaner: dry
Compression: 15.4:1
Rated RPM: 2100
Idle RPM: 800-2300
Operating RPM: 1500-2100
Starter volts: 12
Coolant capacity: 44 qts
41.6 L

John Deere 8630 Transmission overview

Engine Oil

Transmission: John Deere Quad-Range
Type: partial power shift
Gears: 16 forward and 4 reverse
Clutch: hydraulic wet disc

John Deere 8630 Dimensions

Wheelbase: 125 inches
317 cm
Length: 223.5 inches
567 cm
Width: 95.8 inches
243 cm *Standard axle
  118.4 inches
300 cm *Long axle
Height (exhaust): 134.5 inches
341 cm
Ground clearance: 19.4 inches
49 cm
Front axle: 3.622 by 96 inches
91 by 2438 mm
Front axle: 3.622 by 118 inches
91 by 2997 mm
Rear axle: 3.622 by 96 inches
91 by 2438 mm
Rear axle: 3.622 by 118 inches
91 by 2997 mm

John Deere 8630 Weight
Shipping: 24150 lbs
10954 kg
Operating: 24500 lbs
11113 kg
Ballasted: 26480 lbs
12011 kg

John Deere 8630 Tests

Nebraska Tractor Test 1180

Nebraska Tractor Test 1180
Diesel Quad-Range 4WD
June 3 – 11, 1975
Link: Nebraska Tractor Test 1180 file
PTO performance
Power at rated engine speed: 225.59 hp
168.2 kW
Fuel use: 15.3 gal/hour
57.9 l/hour
Drawbar performance
Max power: 198.12 hp
147.7 kW
Fuel use: 13.7 gal/hour
51.9 l/hour
Max pull: 26,443 lbs
11994 kg


Is John Deere 8630 a good tractor?

The John Deere 8630 is one of the great tractors in the John Deere stable, and it has earned John Deere a fantastic reputation.

How much oil does a John Deere 8630 take?

Check out the John Deere 8630 oil capacity and oil type in the engine specs section as it may vary across the engines. Keep in mind, that older models might have their oil capacity increased over time. You may compare between the early and late oil capacity.

Do tractors have VIN numbers?

Every tractor has a VIN number. The number is usually engraved below the driver’s seat. Tractor manufacturers put the number in different places on the tractor body.

What was the last year John Deere made the 8430

The John Deere 8630 was an agricultural tractor model made from 1975 – 1978

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