- WhichTractor size: Utility
- Not independently tested
- 1965–1972
- 17,571 built
It was ranked on an engine power figure whose source does not say gross or net. WhichTractor size, not the maker’s category
Derived by WhichTractor from a sourced three-point linkage. How we decide what a machine is
International Harvester 523 Full specifications
IHC D-179 three-cylinder diesel or INTERNATIONAL-HARVESTER D-179 diesel. The manufacturer claimed 47.1 horsepower. No laboratory has tested one, so there is no measured figure at the shaft.
Engine power, claimed · gross or net not stated
47.1 hp
35.1 kW as stated by the source
Not independently tested
Claimed · standard not stated by the source
Source · Traktorenlexikon, “IHC 523”, claimed
- Weight
- 5,379–6,294 lb
- Hyd. flow
- 7.5 gpm
- Top speed
- 12.4–18.6 mph
International Harvester 523 specs: key facts
The International Harvester 523 was built from 1965 to 1972.
The International Harvester 523 has a claimed engine power (gross or net not stated) of 35.1 kW (47.1 hp); it has no measured PTO figure.
The International Harvester 523 was built in two-wheel drive (2WD) and four-wheel drive (4WD) versions, depending on configuration.Source 3
The International Harvester 523 has a IHC D-179 engine, a 3-cylinder 2.93 L diesel unit.Source 2
The International Harvester 523 weighs 2,440–2,855 kg (5,379–6,294 lb) unladen.
The International Harvester 523 has an independent rear PTO running at 540 rpm.
The three-point hitch of the International Harvester 523 lifts 1,700 kg (3,748 lb) at the lower-link ends.Source 3
The hydraulic pump of the International Harvester 523 delivers 28.5 L/min (7.5 gpm).
Source · Traktorenlexikon, “IHC 523”
How much horsepower does a 523 have?
The only figure for the 523 is 47.1 hp (35.1 kW) of claimed engine power, gross or net not stated, no test standard stated — not power at the shaft.
Source · Traktorenlexikon, “IHC 523”
What engine is in a 523?
A 523 has an IHC D-179, a 3-cylinder 2.93 L diesel engine. Diesel tractors have a INTERNATIONAL-HARVESTER D-179. Diesel tractors have a INTERNATIONAL-HARVESTER D-179.
| Make & model | IHC D-179Source 2 |
|---|---|
| Cylinders | 3, liquid-cooledSource 2 |
| Displacement | 179.0 ci · 2.93 LSource 2 |
| Max torque | 131 lb·ft · 177 N·m @ 1,600 rpm |
| Electrical system | 12 V |
Source · Traktorenlexikon, “IHC 523”
How much will a 523 lift, and what is its hydraulic flow?
Hydraulic and PTO specifications for the 523 are below.
| Pump flow | 7.5 gpm · 28.5 L/min |
|---|---|
| Pressure | 3,556 psi · 245 bar |
| Lift at ends | 3,748 lb · 1,700 kgSource 3On record for 1 of 4 configurations |
| Rear PTO | Independent, engine-driven, 540 rpm |
| PTO shaft | 1 3/8", 6 splines (Form A) |
Source · Traktorenlexikon, “IHC 523”
What transmission does a 523 have?
Transmission specifications for the 523 are below.
| Clutch | Pedal-operated dry single-disc clutchSource 3On record for 1 of 4 configurations |
|---|---|
| Brakes | Pedal-operated disc brake positioned on the differential half-shaftsSource 3On record for 1 of 4 configurations |
| Steering | Mechanical steering |
| Top speed | 12.4–18.6 mph · 20–30 km/h |
Source · Traktorenlexikon, “IHC 523”
How much does a 523 weigh?
A 523 weighs 5,379–6,294 lb (2,440–2,855 kg) unladen.
| Unladen weight | 5,379–6,294 lb · 2,440–2,855 kg |
|---|---|
| Wheelbase | 78.7 in · 2,000 mm |
| Length | 119.5–128.7 in · 3,035–3,268 mm |
| Width | 71.5 in · 1,815 mmtwo-wheel-drive version |
| Height | 59.8–95.9 in · 1,520–2,436 mm |
| Ground clearance | 15.0 in · 380 mmtwo-wheel-drive version |
| Front track | 52.0–74.0 in · 1,320–1,880 mm |
| Rear track | 52.0–75.6 in · 1,320–1,920 mm |
| Turning radius, braked | 12.0 ft · 3.65 m |
Source · Traktorenlexikon, “IHC 523”
Which tractors compare with a 523?
Within 10% of its 47.1 hp of claimed engine power, the same type, and first built within 15 years of it.
- Güldner G 50 (Gotland)47.1 hp engine, claimed · 1962Side by side with the 523 →
- Hermann Lanz D 648 Allrad47.1 hp engine, claimed · 1973–1978Side by side with the 523 →
- Fendt Farmer 10347 hp engine, claimed · 1972–1974Side by side with the 523 →
- ZETOR 451147.3 hp engine, claimed · 1968–1972Side by side with the 523 →
- SOMECA 480 (TD)47.3 hp engine, claimed · 1973–1978Side by side with the 523 →
- WHITE 2-5047.3 hp engine, claimed · 1976–1980Side by side with the 523 →
Everything else people ask
Is a 523 two-wheel drive or four-wheel drive?
The International Harvester 523 was built in two-wheel drive (2WD) and four-wheel drive (4WD) versions, depending on configuration.
What PTO does a 523 have?
A 523 has a independent 540 rpm rear PTO on a 1 3/8", 6 splines (Form A) shaft.
What serial numbers does a 523 carry?
The source prints serial numbers NT 200.001 to NT 200.357 (June 1965 to November 1965). It does not say whether that is the tractor’s or the engine’s number, and we never work out a year from a serial number.
Where this page comes from
Compiled from Traktorenlexikon, “McCormick 523”; Traktorenlexikon, “IHC 553”; and Traktorenlexikon, “IHC 523”.
Sources
Facts taken from these documents, units converted. Numbers beside a figure refer to this list. Licences and attribution
- Traktorenlexikon: IHC 523 — CC BY-SA 4.0, WIKIBOOKS-TL-44148 · revision 999836. Wikibooks contributors (Traktorenlexikon). Original document
- Traktorenlexikon: IHC 553 — CC BY-SA 4.0, WIKIBOOKS-TL-25838 · revision 957516. Wikibooks contributors (Traktorenlexikon). Original document
- Traktorenlexikon: McCormick 523 — CC BY-SA 4.0, WIKIBOOKS-TL-118107 · revision 1059859. Wikibooks contributors (Traktorenlexikon). Original document