Home » Ford 3400, 3500, 4400 and 4500 Industrial Tractor Specifications

Ford 3400, 3500, 4400 and 4500 Industrial Tractor Specifications

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The Ford 3400, 3500, 4400 and 4500 were three-cylinder utility and industrial tractors built from 1965 to 1975 at Ford's Highland Park, Michigan plant. The 3400 and 3500 share the smaller 158 cu in (2,590 cc) gasoline / 175 cu in (2,868 cc) diesel engines, while the heavier 4400 and 4500 use the 201 cu in (3,294 cc) gasoline and diesel engines. Ford classified the 3400 and 4400 as Utility models and the 3500 and 4500 as true Industrial models — the Industrial chassis carries heavier front and rear axles and offers transmission options (such as Power Reversing) not available on the Utility versions. All four were commonly fitted with loaders and backhoes and are grouped together in the factory operator's manual covered here.

The specifications below are grouped by system for easy reference. Where a value applies only to certain models, the model is named; an em dash (—) indicates the option was not offered for that model.

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Engine

The 3400/3500 use a 158 cu in gasoline or 175 cu in diesel three-cylinder engine; the 4400/4500 use the larger 201 cu in three-cylinder gasoline or diesel.

Specification 3400 / 3500 Gas 3400 / 3500 Diesel 4400 / 4500 Gas 4400 / 4500 Diesel
No. of Cylinders 3 3 3 3
Bore 4.2 in (106.68 mm) 4.2 in (106.68 mm) 4.4 in (111.76 mm) 4.4 in (111.76 mm)
Stroke 3.8 in (96.52 mm) 4.2 in (106.68 mm) 4.4 in (111.76 mm) 4.4 in (111.76 mm)
Displacement 158 cu in (2,590 cc) 175 cu in (2,868 cc) 201 cu in (3,294 cc) 201 cu in (3,294 cc)
Compression Ratio 7.75:1 16.5:1 7.75:1 16.5:1
Firing Order 1-2-3 1-2-3 1-2-3 1-2-3
Idle Speed 600–700 rpm 600–700 rpm 600–700 rpm 600–700 rpm
Max Speed, No Load 2,285–2,385 rpm 2,225–2,275 rpm 2,395–2,495 rpm 2,425–2,475 rpm
Max Speed, Rated 2,100 rpm 2,000 rpm 2,200 rpm 2,200 rpm

Valve Clearance (lash — warm engine), all models:
Intake — 0.014 in. go / 0.016 in. no-go (0.355–0.406 mm)
Exhaust — 0.017 in. go / 0.019 in. no-go (0.432–0.482 mm)

Ignition System

Diesel Type Compression
Gasoline Type Spark
Gasoline Method Coil and distributor
Distributor Point Gap (breaker) 0.022–0.028 in. (0.559–0.711 mm)
Dwell Angle 35°–38°
Timing (600–700 rpm, vacuum line disconnected) 2° ± 2° BTDC
Spark Plug Type Autolite AG5
Spark Plug Gap 0.023–0.027 in. (0.584–0.686 mm)

Fuel System

Carburetor Type (gasoline) Updraft
Initial Idle Screw Adjustment Approximately one full turn out
Injection Pump — 3400 & 3500 (diesel) In-line
Injection Pump — 4400 & 4500 (diesel) Distributor
Injection Timing (diesel) 19° BTDC

Cooling System

Type Pressurized liquid, recirculating bypass
Water Pump Type Centrifugal
Water Pump Drive V-belt
Fan Diameter 16 in. (406 mm)
Fan Belt Deflection 1/4–1/2 in. (6.350–12.700 mm) with 60–90 lb (27.2–40.8 kg) force applied midway between generator and crankshaft pulleys
Thermostat — Starts to Open 188°F (87°C)
Thermostat — Fully Open 212°F (100°C)
Radiator Cap 7 psi (0.4921 kg/cm²) standard

Electrical System

Generator 12-volt, shunt-wound
Generator Output 22 amps
Regulator Current voltage
Battery — Gasoline Engine 80 amp-hour rating
Battery — Diesel Engine 128 amp-hour rating
Ground Negative
Starting Motor Positive engagement
Headlamp Sealed Beam Unit No. 4419
Tail Lamp Bulb No. 1155
Flasher Warning Lamp Bulb No. 1156
Instrument & Warning Light Bulbs No. 1895

Clutch

Application Type
3400 & 3500 w/ Transmission P.T.O. 12 in. (304.8 mm) single dry plate
3400 w/ Live P.T.O. 11 in. (279.4 mm) double dry plate w/ 8-1/2 in. (215.9 mm) P.T.O. disc
4400 & 4500 w/ Independent P.T.O. 13 in. (330.2 mm) single dry plate
Pedal Free Travel Measurement
3400 w/ Live P.T.O. 1-3/8 – 1-5/8 in. (34.9–41.3 mm)
3400 & 3500 w/ Transmission P.T.O. 1-1/8 – 1-3/8 in. (28.6–34.9 mm)
4400 & 4500 w/ Transmission P.T.O. 1-1/4 – 1-1/2 in. (31.8–38.1 mm)
4400 & 4500 w/ Independent P.T.O. 1-5/8 – 1-7/8 in. (41.3–47.6 mm)

Brakes

Ford 3400 & 3500 — mechanical (expanding shoe), 14 in. (355.6 mm) drum diameter.

Specification 3400 3500
Shoe Width 1.5 in. (38.1 mm) 2.0 in. (50.8 mm)
Total Lining Area 98.5 sq in (635.5 sq cm) 109.0 sq in (703.3 sq cm)

Ford 4400 & 4500 — mechanical (wet disc).

Disc Diameter 8.0 in. O.D. (203.2 mm) / 6.8 in. I.D. (172.7 mm)
Lining Area 168.0 sq in (1,083.9 sq cm)

Steering

Type Manual or hydraulic power assist
Turns Lock-to-Lock — 3400 & 3500 4.8
Turns Lock-to-Lock — 4400 & 4500 3.3
Power Assist Pump Type Gear
Pump Capacity at 800 rpm (3400 & 4400) 3.4 U.S. gpm (2.8 Imp. gpm,¹ 12.9 L/min)
Pump Capacity at 1000 rpm (3500 & 4500) 4.2 U.S. gpm (3.5 Imp. gpm,¹ 15.9 L/min)
Relief Valve Setting — 3400 600–700 psi (42.2–49.2 kg/cm²)
Relief Valve Setting — 3500 & 4400 1,050–1,150 psi (73.8–80.9 kg/cm²)
Relief Valve Setting — 4500 1,200–1,300 psi (84.4–91.4 kg/cm²)

Power Take-Off

Rear PTO is 540 rpm. Engine speed required to deliver 540 rpm at the PTO depends on transmission and PTO configuration:

Configuration Engine Speed for 540 rpm P.T.O.
4-Speed (Transmission P.T.O.) 1,500 rpm
4-Speed in Over-Range, w/ Over/Under Auxiliary (Transmission P.T.O.) 1,000 rpm
6 × 4 Manual Reversing (Transmission P.T.O.) — 3400 & 3500 1,300 rpm
6 × 4 Manual Reversing (Transmission & Ind. P.T.O.) — 4400 & 4500 1,800 rpm
8-Speed (Transmission P.T.O.) — 3400 & 3500 1,600 rpm
8-Speed (Transmission P.T.O.) — 4400 & 4500 1,800 rpm
8-Speed (Live P.T.O.) — 3400 1,800 rpm
8-Speed (Independent P.T.O.) — 4400 & 4500 1,800 rpm
Select-O-Speed — 3400, 3500, 4400 & 4500 1,800 rpm

Hydraulic Lift System

Optional live hydraulic lift with dual sensing draft control, flow control, position control and Category I 3-point linkage on all four models.

Pump Type — w/ Select-O-Speed (all models) Piston, engine driven
Pump Type — 4400 & 4500 w/ 8-speed (Ind. P.T.O.) Gear, P.T.O. driven
Engine-Driven Piston Pump Capacity 5 U.S. gpm (4.2 Imp. gpm, 18.9 L) at 2,000 rpm
P.T.O.-Driven Gear Pump Capacity 5.5 U.S. gpm (4.6 Imp. gpm, 20.8 L) at 2,200 rpm
System Relief Valve Setting 2,500 psi (175.8 kg/cm²)

Hydraulic Package (Ford 4500 only) — vane pump:

Capacity at 1,900 psi (133.6 kg/cm²) 27.8 U.S. gpm (23.2 Imp. gpm, 105.2 L) at 2,200 rpm
Capacity at 2,200 psi (154.7 kg/cm²) 27.4 U.S. gpm (22.8 Imp. gpm, 103.7 L) at 2,200 rpm

Capacities

Fluid capacities below are listed in U.S. measure, with Imperial and metric in parentheses. An em dash (—) means the option was not offered for that model.

Capacity 3400 3500 4400 4500
Fuel Tank 13 gal (10.8 Imp, 49.2 L) 16 gal (13.3 Imp, 60.6 L) 16 gal (13.3 Imp, 60.6 L) 16 gal (13.3 Imp, 60.6 L)
Cooling System 13.8 qt (11.5 Imp, 13.0 L) 13.8 qt (11.5 Imp, 13.0 L) 14 qt (11.6 Imp, 13.2 L) 15.3 qt (12.7 Imp, 14.5 L)
Engine Crankcase — with filter change 8 qt (6.7 Imp, 7.6 L) 8 qt (6.7 Imp, 7.6 L) 8 qt (6.7 Imp, 7.6 L) 8 qt (6.7 Imp, 7.6 L)
Engine Crankcase — without filter change 6 qt (5 Imp, 5.7 L) 6 qt (5 Imp, 5.7 L) 6 qt (5 Imp, 5.7 L) 6 qt (5 Imp, 5.7 L)
Hydraulic Lift (Rear Axle) — Trans. P.T.O. & Less P.T.O. 25.2 qt (21.1 Imp, 23.9 L) 25.2 qt (21.1 Imp, 23.9 L) 33.6 qt (28.0 Imp, 31.8 L) 33.6 qt (28.0 Imp, 31.8 L)
Hydraulic Lift (Rear Axle) — Live P.T.O. 25.2 qt (21.0 Imp, 23.9 L) — — —
Hydraulic Lift (Rear Axle) — Ind. P.T.O. — — 32.4 qt (27.0 Imp, 30.7 L) 32.4 qt (27.0 Imp, 30.7 L)
Hydraulic Package — with loader — — — 14 gal (11.7 Imp, 53.0 L)
Hydraulic Package — without loader — — — 10.5 gal (8.8 Imp, 39.7 L)
Transmission — 4-Speed (Trans. P.T.O. & Less P.T.O.) 6.6 qt (5.5 Imp, 6.2 L) 6.6 qt (5.5 Imp, 6.2 L) — —
Transmission — 4-Speed w/ Over/Under Auxiliary 7 qt (5.8 Imp, 6.6 L) 7 qt (5.8 Imp, 6.6 L) — —
Transmission — 4-Speed Power Reversing — 17 qt (14.2 Imp, 16.1 L) — 17 qt (14.2 Imp, 16.1 L)
Transmission — 6 × 4 Manual Reversing (Trans. P.T.O. & Less P.T.O.) 13.2 qt (11.0 Imp, 12.5 L) 13.2 qt (11.0 Imp, 12.5 L) 13.2 qt (11.0 Imp, 12.5 L) 13.2 qt (11.0 Imp, 12.5 L)
Transmission — 6 × 4 Manual Reversing (Ind. P.T.O.) — — 13.2 qt (11.0 Imp, 12.5 L) 13.2 qt (11.0 Imp, 12.5 L)
Transmission — 8-Speed (Trans. P.T.O. & Less P.T.O.) 13.2 qt (11.0 Imp, 12.5 L) 13.2 qt (11.0 Imp, 12.5 L) 13.2 qt (11.0 Imp, 12.5 L) 13.2 qt (11.0 Imp, 12.5 L)
Transmission — 8-Speed (Live P.T.O.) 13.2 qt (11.0 Imp, 12.5 L) — — —
Transmission — 8-Speed (Ind. P.T.O.) — — 13.2 qt (11.0 Imp, 12.5 L) 13.2 qt (11.0 Imp, 12.5 L)
Transmission — Select-O-Speed 12 qt (10.0 Imp, 11.4 L) 12 qt (10.0 Imp, 11.4 L) 13.2 qt (11.0 Imp, 12.5 L) 13.2 qt (11.0 Imp, 12.5 L)

Lubricants & Engine Oil

Engine oil recommendations by ambient temperature:

Temperature Diesel (Viscosity & API) Gasoline (Viscosity & API)
Below +10°F SAE 5W (DM) SAE 5W (MS) or SAE 5W-20W (MS)
+10°F to 40°F SAE 10W (DS) SAE 10W (MS) or SAE 5W-20W (MS)
32°F to 90°F SAE 20 (DS) SAE 20 (MS) or SAE 10W-30 (MS)
Above 75°F SAE 30 (DS) SAE 30 (MS) or SAE 10W-30 (MS)

Diesel fuel note: With sulfur content below 1.0%, an API DM diesel oil may be used in place of DS, but the oil and filter change interval must be reduced to 150 hours. With sulfur content above 1.0% but below 1.3%, a DS oil must be used (except at 10°F and below) and the change interval reduced to 150 hours. Fuel with sulfur content above 1.3% is not recommended.

Recommended lubricants:

Application Specification
Manual Shift Transmission Oil ESN-M2C77-A or M-4864-A
Select-O-Speed & Power Reversing Transmission Oil ESN-M2C41-A or M2C41
Hydraulic Package (Ford 4500) ESE-M2C48-A or M2C48-A
Hydraulic Lift / Rear Axle — 3400 & 3500 ESN-M2C77-A or M-4864-A
Hydraulic Lift / Rear Axle — 4400 & 4500 ESN-M2C53-A or M-2C53-B
Steering Gear Housing (Manual & Power) ESEN-M2C94-A, ESW-M2C28-BA or M-4864-B
Power Steering Reservoir — 3400, 3500 & 4400 ESEN-M2C92-A or M2C41
Power Steering Reservoir — 4500 ESE-M2C48-A or M2C48-A
Front Wheel Bearings Good quality, multi-purpose, lithium-base, cup-type grease
Lubrication Fittings & Manual Reversing Clutch Release Bearing Good quality, multi-purpose, lithium-base, cup-type grease

Wheels & Tires

Position 3400 3500 4400 4500
Front — Standard 6.50-16 (6 ply I1) 7.50-16 (6 ply I1) 7.50-16 (6 ply I1) 7.50-16 (8 ply I1)
Front — Optional 6.00-16 (4 ply I1); 7.50-16 (6 ply I1) 7.50-16 (6 ply Truck) 6.00-16 (4 ply I1) 7.50-16 (8 ply Truck)
Rear — Standard 12.4-28 (4 ply R1) 13.6-28 (4 ply R1) 14.9-24 (4 ply R1) 14.9-24 (6 ply R4)
Rear — Optional 13.6-28 (4 ply R1); 13.6-28 (4 ply R3); 14.9-24 (6 ply R4); 16.9-24 (6 ply R1); 16.9-24 (6 ply R3); 16.9-24 (6 ply R4) 14.9-24 (6 ply R4); 16.9-24 (6 ply R1); 16.9-24 (6 ply R3); 16.9-24 (6 ply R4) 14.9-24 (6 ply R4); 16.9-24 (6 ply R1); 16.9-24 (6 ply R4); 16.9-24 (8 ply R4) 16.9-24 (6 ply R1); 16.9-24 (6 ply R3); 16.9-28 (8 ply R1); 16.9-28 (8 ply R4)

Cast Iron Weights

Weight Per-Weight Mass & Maximum
Front Wheel — 3400 45 lb (20.41 kg) each, two segments required per wheel
Front Wheel — 3500, 4400 & 4500 95 lb (43.09 kg) each, maximum of one per wheel
Rear Wheel, 24-in. wheels — 3400 100 lb (45.36 kg) each, maximum of three per wheel
Rear Wheel, 24-in. wheels — 3500 & 4400 100 lb (45.36 kg) each, maximum of four per wheel
Rear Wheel, 24-in. wheels — 4500 100 lb (45.36 kg) each, maximum of six per wheel
Rear Wheel, 28-in. wheels — 3400 & 3500 80 lb (36.28 kg) each, maximum of three per wheel
Rear Wheel, 28-in. wheels — 4500 100 lb (45.36 kg) each, maximum of six per wheel

General Dimensions

Dimension 3400 3500 4400 4500
Length 120-1/2 in. (306.07 cm) 120-1/2 in. (306.07 cm) 121-7/16 in. (308.45 cm) 122 in. (309.88 cm)
Height to Top of Exhaust 83-1/8 in. (211.14 cm) 80-1/2 in. (204.47 cm) 80-1/2 in. (204.47 cm) 81-1/2 in. (207.01 cm)
Height to Hood Line 54-7/16 in. (138.27 cm) 54 in. (137.16 cm) 53-3/4 in. (136.52 cm) 55-5/8 in. (141.29 cm)
Height to Steering Wheel 58-1/8 in. (150.49 cm) 59 in. (149.86 cm) 58-1/8 in. (150.49 cm) 58-3/4 in. (149.22 cm)
Width 68-7/16 in. (173.83 cm) 66 in. (167.64 cm) 70-7/8 in. (178.11 cm) 70-1/2 in. (179.07 cm)
Ground Clearance — Front Axle 22 in. (55.88 cm) 11-5/8 in. (29.52 cm) 11-5/8 in. (29.52 cm) 12-3/4 in. (32.38 cm)
Ground Clearance — Transmission 13-7/16 in. (34.13 cm) 14-3/8 in. (36.51 cm) 13-3/4 in. (34.92 cm) 14 in. (35.56 cm)
Turning Radius — without brakes 10 ft 4 in. (314.96 cm) 10 ft 9 in. (327.66 cm) 11 ft 2 in. (340.36 cm) 12 ft 1 in. (368.30 cm)
Turning Radius — with brakes 9 ft 9 in. (297.18 cm) 9 ft 9 in. (297.18 cm) 10 ft 2 in. (309.88 cm) 11 ft (335.28 cm)
Front Wheel Tread 54 in. (137.16 cm) 56 in. (142.24 cm) 56 in. (142.24 cm) 56 in. (142.24 cm)
Rear Wheel Tread 52–76 in. (132.08–193.04 cm) 52–76 in. (132.08–193.04 cm) 56–76 in. (142.24–193.04 cm) 56–76 in. (142.24–193.04 cm)
Weight (less options) 3,400 lb (1,542.2 kg) 3,800 lb (1,723.7 kg) 4,340 lb (1,968.6 kg) 4,510 lb (2,045.7 kg)

¹ The original factory manual prints these Power Assist Pump capacities as “28.3 Imp. gpm” and “35.0 Imp. gpm.” These appear to be typographical errors in the source (a misplaced decimal point); the correct Imperial conversions are approximately 2.8 and 3.5 Imp. gpm, which agree with the U.S. gpm and litres-per-minute figures shown. Values corrected here for accuracy.
All specifications are transcribed from the original Ford 3400, 3500, 4400 & 4500 operator's manual and are provided for reference. U.S. and metric figures are reproduced as published; minor rounding differences between unit systems reflect the original printing. Always confirm against your unit's serial number and the manual before service or repair.

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