Ford 8N

1947 - 1952

N Series

Utility tractor

Manufacturer

Ford

Utility tractor

Built in Highland Park, Michigan, USA

Total built

524,000

Original price was $1,404 in 1952

8NAN

distillate engine

Drawbar (claimed)

23.16 hp 17.3 kW

PTO (claimed)

27.32 hp 20.4 kW

Drawbar (tested)

21.95 hp 16.4 kW

PTO (tested)

23.24 hp 17.3 kW

Belt (tested)

25.77 hp 19.2 kW

Two-wheel drive

Steering

mechanical

Manual drum brakes

Open operator station.

Fuel

10 gal 37.9 L

Hydraulic system

5 gal 18.9 L

Capacity

5 gal 18.9 L

Pressure

1700 psi 117.2 bar

Pump flow

2.85 gpm 10.8 lpm

Rear Type

I

Rear lift

800 lbs 362 kg

Rear PTO

transmission

Rear PTO Type

545 (1.125)

Wheelbase

70 inches 177 cm

Weight

2410 to 2717 pounds

Front tire

4.00-19

Rear tire

10-28

8N Tractors: Parts, manuals, and information for the 8N

N Tractor Club:

8N Manual: online at NewOldManuals.com

Ground

positive

Charging system

generator

Charging amps

20

Battery volts

6

Battery AH

80

The Great New Ford Tractor published in 1947

Ford Tractor published in 1950

Operator's Manual Model 8N (3729-52-C) published in 1952

Ford 2.0L 4-cyl gasoline

Ford 2.0L 4-cyl distillate

Manufacturer

Ford

Fuel Type

Gasoline

Configuration

4-cylinder 8-valve, liquid-cooled

Displacement

119.7 ci 2.0 L

Bore/Stroke

3.188x3.75 inches 81 x 95 mm

Compression

6:1

6.7:1 *After s/n 85000

Rated RPM

2000

Torque

92 lb-ft 124.8 Nm

Torque RPM

1500

Firing order

1-2-4-3

Starter volts

6

Coolant capacity

12 qts 11.4 L

Sparkplug gap

0.025 inches 0.635 mm

Point gap

0.015 inches (front-mount) 0.381 mm

0.025 inches (side-mount) 0.635 mm

Intake valve clearance

0.011 inches*Cold 0.279 mm

Exhaust valve clearance

0.015 inches*Cold 0.381 mm

Oil capacity

6 qts 5.7 L

Manufacturer

Ford

Configuration

4-cylinder, liquid-cooled

distillate

The distillate engine was used on the 8NAN variant.

Displacement

119.7 ci 2.0 L

Bore/Stroke

3.188x3.75 inches 81 x 95 mm

Compression

4.75:1

Rated RPM

2000

Firing order

1-2-4-3

Starter volts

6

Coolant capacity

12 qts 11.4 L

Oil capacity

6 qts 5.7 L

Image courtesy of Javier Cardozo

4-speed

12-speed

Transmission

constant mesh

Gears

4 forward and 1 reverse

Oil capacity

20 qts 18.9 L

Oil type

32oF [0oC]↑ : Ford M4864A 32oF [0oC]↓ : Ford M4864B

32oF [0oC]↑

: Ford M4864A

32oF [0oC]↓

: Ford M4864B

32oF [0oC]↑

: Ford M4864A

32oF [0oC]↓

: Ford M4864B

Tractor must be stopped and clutch used to shift between gears.

32oF [0oC]↑

: Ford M4864A

32oF [0oC]↓

: Ford M4864B

Transmission

Sherman Combination Transmission

Gears

12 forward and 3 reverse

The Sherman Step-Up and Step-Down Combination transmission provided two additional ranges, one higher and one lower, through the use of an auxiliary gearbox. The Step-Down was geared down by 1.513 to 1. The Step-Up was geared up by 1 to 1.495.

Ag front

4.00-19

6.00-16

Ag rear

10-28

11.2-28

Wheelbase

70 inches 177 cm

Length

115 inches 292 cm

Width

64.75 inches 164 cm

Height

54.5 inches 138 cm

Ground clearance

13 inches 33 cm

Clearance (front axle)

21 inches 53 cm

Front tread

48/52/56/60/64/68/72/76 inches 121/132/142/152/162/172/182/193 cm

Rear tread

48/52/56/60/64/68/72/76 inches 121/132/142/152/162/172/182/193 cm

Shipping

2,410 lbs 1093 kg

Operating

2,717 lbs 1232 kg

Ballasted

4,043 lbs 1833 kg

NTTL 385: gasoline 4-speed 2WD

NTTL 393: gasoline 4-speed 2WD

NTTL 443: gasoline 4-speed 2WD

NTTL 444: distillate (8NAN) 4-speed 2WD

Gasoline 4-speed 2WD September 8 - 19, 1947 Link: Nebraska Tractor Test 385 file

Belt power (max)

21.06 hp 15.7 kW

Belt fuel use (max)

2.7 gal/hour 10.2 l/hour

PTO performance

Power at rated engine speed

18.35 hp 13.7 kW

Fuel use

2.5 gal/hour 9.5 l/hour

Drawbar performance

Max power

20.8 hp 15.5 kW

Max pull

2,810 lbs 1274 kg

Gasoline 4-speed 2WD May 11 - 18, 1948 Link: Nebraska Tractor Test 393 file

Belt power (max)

25.77 hp 19.2 kW

Belt fuel use (max)

2.4 gal/hour 9.1 l/hour

Drawbar performance

Max power

21.72 hp 16.2 kW

Gear 2 used for power test.

Max pull

2,751 lbs 1247 kg

Gear 1 used for pull test.

Gasoline 4-speed 2WD June 16 - 27, 1950 Link: Nebraska Tractor Test 443 file

Belt power (max)

25.49 hp 19.0 kW

Belt fuel use (max)

2.3 gal/hour 8.7 l/hour

PTO performance

Power at rated engine speed

23.24 hp 17.3 kW

Fuel use

2.1 gal/hour 7.9 l/hour

Drawbar performance

Max power

21.95 hp 16.4 kW

Gear 2 used for power test.

Max pull

2,810 lbs 1274 kg

Gear 1 used for pull test.

Distillate (8NAN) 4-speed 2WD June 22 - 29, 1950 Link: Nebraska Tractor Test 444 file

Belt power (max)

21.87 hp 16.3 kW

Belt fuel use (max)

2.4 gal/hour 9.1 l/hour

Drawbar performance

Max power

18.79 hp 14.0 kW

Gear 2 used for power test.

Max pull

2,355 lbs 1068 kg

Gear 1 used for pull test.