International Harvester 724

International Harvester 3.9L 4-cyl diesel

Bore × stroke

3.88 in × 5.06 in

Rated speed

2,200 rpm

Rated power

67 hp

Torque

165 lb·ft at 1,600 rpm

Compression

16:1

Cooling

liquid-cooled

Firing order

1-3-4-2

partially synchronized: Four gears (1-4) in high, low, and reverse ranges. Gear shifting is synchronized using the clutch. Tractor must be stopped to shift range.

Agriomatic S: The Agriomatic S provides an additional four forward speeds selected by a right-hand power shift lever. Pushing the lever forward engages the Agriomatic range, while rearward uses the conventional range. The Agriomatic speeds are between high and low ranges, so this provides an undershift in high range and an overshift in low range. In reverse range it operates as a power shuttle.