John Deere 4630

Name: John Deere 4630
Brand: John Deere

Power

166 hp[P] hp

Production

1973-1977

Engine

Aftercooled turbocharged diesel, 6-cylinder

Transmission

John Deere Syncro-Range

Weight

16250 lbs [7371 kg]

Drive

2WD/4WD

140–200 HP 1970s

From the same series:

4430

Introduction

John Deere 4630 Row-Crop Tractor

The John Deere 4630 is a row-crop tractor produced between 1973 and 1977 in Waterloo, Iowa. It served as a high-capacity machine for large-scale agricultural operations, featuring a 6-cylinder diesel engine and various transmission configurations.

Engine and Performance

The tractor is powered by a 404 cubic-inch (6.6 L) 6-cylinder diesel engine equipped with a turbocharger and aftercooler. It produces 166 horsepower at a rated engine speed of 2200 RPM. The engine features a liquid-cooling system with a 34.1-liter capacity and utilizes ether injection for cold-weather starting. The compression ratio is set at 16.0:1.

Transmission and Drivetrain

Three transmission options were available: the 8-speed partially synchronized Syncro-Range, the 16-speed partial power shift Quad-Range, and the 8-speed full power shift. All variants utilize a hydraulic wet disc clutch. The machine was offered in both 4x2 2WD and 4x4 HFWD configurations, supported by planetary final drives and a hydro-mechanical rear differential lock.

Hydraulics and PTO

The 4630 utilizes a closed-center hydraulic system capable of managing one to three valves. It is equipped with an independent rear PTO operating at 1000 RPM (1.375-inch shaft). The rear hitch is a category III/IIIN type with a lift capacity of 5,260 lbs (2,385 kg), allowing for the operation of heavy implements.

Operator Environment and Dimensions

The tractor features the Sound-Gard cab, which included air conditioning as a standard specification, providing a significant improvement in operator comfort for the era. With a wheelbase of 112.65 inches and an operating weight of 16,250 lbs (7,371 kg), the machine provides a stable platform for field work. The rear axle features rack-and-pinion adjustment to accommodate various row spacings.

Conclusion

"The John Deere 4630 represents a period of significant technological advancement in row-crop tractors, balancing high-output engine performance with operator comfort through the Sound-Gard cab. It remains a capable machine for heavy-duty field tasks, suitable for collectors and operators requiring robust mechanical reliability."

Introduction

Production Information of John Deere, 4630

The production information of the tractor (4630) includes details about its manufacturing.

Original price was $27,080 in 1977

Row-Crop tractor

Built in Waterloo, Iowa, USA


Manufacturer	John Deere

Dimension and Tires Information of John Deere, 4630

This section sums up the dimension and tires information of the tractor.


Wheelbase	112.65 inches [286 cm]
Rear tread	60 to 105.6 inches [152 to 268 cm]
Front tread	72 to 88 inches [182 to 223 cm (4WD)]
Height (cab)	116.9 inches [296 cm]
Clearance (drawbar)	15.4 inches [39 cm]
Rear tread	60 to 118 inches [152 to 299 cm]
Height (steering wheel)	93.6 inches [237 cm]
Rack-and-pinion rear axle	3.62 by 118 inches [91 by 2997 mm]
Rack-and-pinion rear axle	3.62 by 96 inches [91 by 2438 mm]
Operating weight	16250 lbs [7371 kg]
Clearance (rear axle)	28.1 inches [71 cm]
Length	171.2 inches [434 cm]
Front tread	64 to 95.6 inches [162 to 242 cm]
Clearance (front axle)	24.9 inches [63 cm]
Rack-and-pinion rear axle	3.62 by 108 inches [91 by 2743 mm]
Rear tread	60 to 128.3 inches [152 to 325 cm]
Front tread	56 to 83.6 inches [142 to 212 cm]
Rack-and-pinion rear axle	3.94 by 118 inches [100 by 2997 mm]


	20.8-38
Ag front	10.00-16
	9.50-20
	11.00-16
Ag rear	18.4-38
Ag rear	24.5-32
Ag front	14L-16A

Engine Specifications of John Deere, 4630

Get the specifications for the engine and if different options are available.

John Deere

Liquid-cooled inline horizontal-shaft

6-cylinder

Aftercooled turbocharged diesel


Coolant capacity	36 qts [34.1 L]
Oil capacity	17 qts [16.1 L]
Pre-heating	Ether injection
Rated RPM	2200
Compression	16.0:1
Displacement	404 ci [6.6 L]
Air cleaner	Dry with secondary element
	Coolant heater OptOptional
Bore/Stroke	4.25x4.75 inches [108 x 121 mm]
Starter volts	12
Starter	Electric
Firing order	1-5-3-6-2-4

Transmission Information of John Deere, 4630Y

Discover all variants of transmission available for this tractor model.

Transmission variants 1

Four shift stations with two gears each, plus reverse gear in the first two shift stations. Tractor must be stopped, and clutch used, to shift between stations. Once in a shift station the tractor may be shifted on the move, using the clutch, between the gears in that station.


Transmission	John Deere Syncro-Range
Clutch	Hydraulic wet disc
Type	Partially synchronized
Gears	8 forward and 2 reverse

Transmission variants 2

Four gears (1-4) in four ranges (A-D). Power shift between gears 1-2 and 3-4 in each range with a synchronized shift (using clutch) between 2-3. Tractor must be stopped to shift range.


Transmission	John Deere Quad-Range
Clutch	Hydraulic wet disc
Type	Partial power shift
Gears	16 forward and 6 reverse

Transmission variants 3


Transmission	John Deere Power Shift
Clutch	Hydraulic wet discs
Type	Full power shift
Gears	8 forward and 4 reverse

8-speed partially synchronized

16-speed partial power shift

8-speed full power shift

Mechanical Specs of John Deere, 4630Y

This section summarizes all mechanical information such as the brake system and other specifications.

Sound-Gard cab with air-conditioning standard.

Power steering

Differential hydraulic wet disc brakes


Drive	4x2 2WD
Differential lock	Hydro-mechanical rear
	4x4 HFWD 4WD
Final drives	Planetary

Power Information of John Deere, 4630Y

Discover the power specifications and options available for this tractor model but also PTO (Power Take-off) information.


Rear PTO	Independent
Rear PTO Type	1000 (1.375)

Hydraulics Specifications of John Deere, 4630

Hydraulic system type, pressure, pump flow and valves.


Type	Closed center
Valves	1 to 3

Three-Point Hitch of John Deere, 4630

Hitch category and rear/front lift capacity.


Rear Type	III/IIIN
Rear lift	5260 lbs [2385 kg]

Electrical System of John Deere, 4630

Battery voltage, charging system and ground.


Ground	Negative
Battery volts	6
Charging system	Alternator
Batteries	2

Frequently asked questions

How much horsepower does the John Deere 4630 have?

The John Deere 4630 delivers 166 hp[P] HP.

What years was the John Deere 4630 produced?

The John Deere 4630 was produced in 1973-1977.

What engine does the John Deere 4630 have?

The John Deere 4630 is powered by a Aftercooled turbocharged diesel, 6-cylinder engine.

What transmission does the John Deere 4630 use?

The John Deere 4630 uses a John Deere Syncro-Range transmission.

How much does the John Deere 4630 weigh?

The John Deere 4630 weighs 16250 lbs [7371 kg].

Is the John Deere 4630 4WD?

The John Deere 4630 is available in 2WD/4WD.

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