Options:International Harvester 5.5L 4-cyl gasoline, International Harvester 5.5L 4-cyl distillate
Aux. fuel:0.875 gal (3.3 L)
Fuel tank:36 gal (136.3 L)
Gasoline engine:International Harvester, gasoline, 4-cylinder, liquid-cooled vertical I-head
Distillate engine:International Harvester, distillate, 4-cylinder, liquid-cooled
Gasoline rated RPM:1500
Distillate rated RPM:1500
Gasoline bore/stroke:4.40x5.50 inches (112 x 140 mm)
Gasoline compression:5.4:1
Gasoline displacement:334.5 ci (5.5 L)
Gasoline engine notes:The gasoline engine was standard on the I-9, and an option on the W-9 until 1947, when it became the standard engine.
Distillate bore/stroke:4.40x5.50 inches (112 x 140 mm)
Distillate displacement:334.5 ci (5.5 L)
Distillate engine notes:The all-fuel engine was designed for tractor fuel and gasoline lower than 70 octane. It was the standard W-9 and WR-9 engine until 1947, when the gasoline engine became standard and the all-fuel engine was an option. The all-fuel engine was an option for the I-9.
Gasoline coolant capacity:44 qts (41.6 L)
Distillate coolant capacity:40 qts (37.9 L)