International Harvester 504 Tractor

Manufacturer International Harvester
Price 4,200(USD)
Model 504
Equipment Type Utility Tractors
Factory Rock Island, Illinois, USA

VARIANTS

IH 2504 industrial

INTERNATIONAL HARVESTER 504 POWER

Drawbar (claimed) 41hp / 30.6kW
PTO (claimed) 46hp / 34.3kW
Plows 3-4

ENGINES OVERVIEW

The International Harvester 504 tractor offers two engine options: a 3.1L 4-cylinder diesel providing superior torque and fuel efficiency for heavier agricultural tasks, and a 2.5L 4-cylinder gasoline engine, which is lighter and suitable for less intensive applications. The diesel variant excels in longevity and low-end power, making it ideal for plowing and heavy-duty operations, while the gasoline engine may be easier for lighter farmers to maintain and operate. A common challenge with the 504 is sourcing specific replacement parts due to its vintage status, so consider this when evaluating long-term maintenance needs.

Description International Harvester 3.1L 4-cyl diesel International Harvester 2.5L 4-cyl gasoline

ENGINE DETAIL 1

The International Harvester 504 features a robust D-188 diesel engine with a compression ratio of 18.7:1, optimizing fuel efficiency for agricultural tasks. Its oil bath air cleaner enhances air filtration, beneficial for longevity in dusty environments. However, with a relatively low rated RPM of 2200, it's less suited for high-speed applications but excels in torque delivery for heavy-duty work scenarios.

Description International Harvester D-188 diesel 4-cylinder liquid-cooled
Displacement 187.5ci / 3.1L
Bore/Stroke 3.688x4.390inches / 94x 112 mm
Air cleaner oil bath
Compression 18.7:1
Rated RPM 2200
Idle RPM 900-2200
Starter electric
Starter volts 12
Oil capacity 5 qts /4.7 L
Coolant capacity 18.6qts / 17.6L

ENGINE DETAIL 2

The International Harvester 504 is powered by a C153 gasoline engine with a 2.5L displacement, offering adequate low-end torque for agricultural applications. With a rated RPM of 2200 and an idle range of 900-2200, it provides a balance between power and fuel efficiency, however, attention should be paid to the potential challenges of maintaining optimal operating temperatures due to its 15-quart coolant capacity. Additionally, the electric starter and 12-volt system enhance usability, but may require regular maintenance to ensure reliability in diverse working conditions.

Description International Harvester C153 gasoline 4-cylinder liquid-cooled
Displacement 152.1ci / 2.5L
Bore/Stroke 3.375x4.25inches / 86x 108 mm
Rated RPM 2200
Idle RPM 900-2200
Firing order 1-3-4-2
Starter electric
Starter volts 12
Coolant capacity 15qts / 14.2L

INTERNATIONAL HARVESTER 504 ENGINES

The International Harvester 504 tractor is equipped with either a 3.1L 4-cylinder diesel engine or a 2.5L 4-cylinder gasoline engine, providing versatility depending on fuel preference and application. The diesel variant offers greater torque and fuel efficiency, ideal for heavy-duty tasks, while the gasoline engine may be preferred for lighter, more agile operations. Potential challenges include increased maintenance for diesel systems, particularly with fuel injection components, and varying power outputs under load that may affect performance in specific agricultural scenarios.

Description International Harvester 3.1L 4-cyl diesel International Harvester 2.5L 4-cyl gasoline

TRANSMISSIONS OVERVIEW

The International Harvester 504 features a 5-speed unsynchronized gearbox, which can present challenges in shifting without using the clutch, particularly under load. Its 10-speed two-speed power shift enhances operational efficiency, allowing for quicker gear changes and improved maneuverability in varying terrains or during field operations. This combination is ideal for farmers requiring versatile power management in diverse agricultural applications, albeit the unsynchronized gears may demand more skill from the operator.

Description 5-speed unsynchronized gear 10-speed two-speed power shift

TRANSMISSION 1

The International Harvester 504 tractor features an unsynchronized 5-speed forward and 1 reverse gear system, which may challenge operators during gear changes, especially under load. The 267mm dry disc clutch offers reliable engagement and durability, ideal for moderate agricultural tasks. However, the lack of synchronization may limit ease of use for inexperienced operators or in high-demand scenarios.

Type unsynchronized gear
Gears 5 forward and 1 reverse
Clutch 267mm dry disc

SPEEDS 1

Description With 13.6-28 rear tires

TRANSMISSION 2

The International Harvester 504 tractor features a two-speed power shift transmission with 10 forward and 2 reverse gears, offering efficient versatility for various tasks. The incorporation of a torque amplifier enhances engine output during load conditions, enabling the operator to maintain speed while navigating challenging terrains. A dry disc clutch ensures reliable engagement but may require more frequent maintenance compared to wet clutches in high-use scenarios.

Transmission Torque Amplifier
Type two-speed power shift
Gears 10 forward and 2 reverse
Clutch dry disc

SPEEDS 2

Description With 13.6-28 rear tires

MECHANICAL

The International Harvester 504 tractor features a 4x2 2WD chassis, which may limit traction in challenging terrains but simplifies maintenance and provides a lighter weight for transport. Its power steering enhances maneuverability, making it suitable for tasks requiring precision, while the 5-speed unsynchronized gear transmission allows for basic speed adjustments, suited for less demanding applications. The optional 10-speed two-speed power shift transmission can greatly enhance operational efficiency in varied field conditions, though it may introduce complexity in shifting mechanics that could challenge inexperienced operators.

Chassis 4x2 2WD
Steering power
Cab Open operator station.
Transmissions 5-speed unsynchronized gear/10-speed two-speed power shift

CAPACITY

Fuel 15gal / 56.8L
Hydraulic system 13gal / 49.2L

HYDRAULICS

Capacity 13gal / 49.2L
Pump flow 7 gpm /26.5 lpm (hitch pump)/12gpm / 45.4lpm (steering/remote pump)/17gpm / 64.3lpm (optional loader pump)

TRACTOR HITCH

Rear Type I/II
Control position and draft control
Type IH Fast Hitch

POWER TAKE-OFF (PTO)

Rear PTO independent
Rear RPM 540

INTERNATIONAL HARVESTER 504 TIRES

The International Harvester 504 features an agricultural front tire size of 6.00-16 and a rear size of 12.4-28, offering a balanced traction and stability ideal for light to moderate fieldwork. One advantage of this setup is improved maneuverability in tight spaces, while the rear tire size provides sufficient flotation and soil preservation during operation. However, potential challenges include limited power for larger implements, which may restrict its use in heavy-duty applications.

Ag front 6.00-16
Ag rear 12.4-28

DIMENSIONS

Wheelbase 73inches / 185cm
Length 128inches / 325cm
Height (steering wheel) 61inches / 154cm
Weight 4458lbs / 2022kg
Front tread 52 to 76inches / 132to 193 cm
Rear tread 52 to 76inches / 132to 193 cm

DIMENSIONS & TIRES

The International Harvester 504 tractor features a compact wheelbase of 73 inches, enhancing maneuverability in tight spaces, which is beneficial for small farms or orchards. Weighing 4,458 lbs, it offers stability during operation, though this weight might limit mobility on soft terrain. The combination of 6.00-16 front tires and 12.4-28 rear tires provides a good balance of traction and flotation, but users may need to consider tire options for specific soil conditions to optimize performance.

Wheelbase 73inches / 185cm
Weight 4458lbs / 2022kg
Front tire 6.00-16
Rear tire 12.4-28

INTERNATIONAL HARVESTER 2001 LOADER 1

Description Single-acting lift cylinders.
Loader weight 1160lbs / 526kg
Height (to pin) 148.5inches / 377cm
Clearance, dumped bucket 98inches / 248cm
Breakout force (lift) 4000lbs / 1814kg
Lift to full height (at pin) 2000lbs / 907kg
Bucket width 40inches / 101cm

INTERNATIONAL HARVESTER 2001 LOADER 2

Description Double-acting lift cylinders.
Loader weight 1160lbs / 526kg
Height (to pin) 148.5inches / 377cm
Clearance, dumped bucket 98inches / 248cm
Breakout force (lift) 2600lbs / 1179kg
Lift to full height (at pin) 1350lbs / 612kg
Bucket width 40inches / 101cm

INTERNATIONAL HARVESTER 2000 LOADER

Loader weight 1417lbs / 642kg
Height (to pin) 125inches / 317cm
Clearance, dumped bucket 105inches / 266cm
Rollback angle 18°
Breakout force (lift) 4000lbs / 1814kg
Lift to full height (at pin) 2000lbs / 907kg
Bucket width 48inches / 121cm/60inches / 152cm

504 SERIAL NUMBERS

Location Left or right side of clutch housing
1962 501
1963 3376
1964 6797
1965 10996
1966 14695
1967 17992
1968 20392

BELT PULLEY

Diameter 11inches / 27cm
RPM 1158
Speed 3334ft/min / 1016.20 meters/min


Last Updated 2025-01-01
Stephen is a passionate tractor hobbyist with a deep-seated love for all things mechanized and agricultural. Growing up in a rural setting, he developed a fascination with these mighty machines that have played a crucial role in shaping the farming industry.

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