The International Harvester 423 tractor has a published engine oil capacity of 6.9 US quarts (6.53 litres). For tractors in the 2.0–2.9 L engine-size class, that is around average versus a peer average of 6.7 quarts. For a routine oil change, having 1 × 1-gal jug + 3 × 1-qt bottles (~0.1 qt spare) on hand covers the published capacity.
Tractor engine oil specifications
International Harvester · 423 · Engine oil capacity guide
The International Harvester 423 has one published engine-oil capacity in this dataset. The listed capacity is 6.9 US qt (6.53 L). Oil capacity can vary by engine, fuel configuration and production revision, so confirm the specification for the exact tractor before servicing.
Tractor-engine benchmark
How this oil capacity compares
Peer values use tractors in the same engine-size class.
Engine oil capacity
Around average
6.9 qt
Low5 qt
This model6.9 qt
Average6.7 qt
High9 qt
Typical low and high use the 10th and 90th percentile of this engine-size group, which avoids one unusual tractor distorting the scale.
At a glance
Tractor profile
Oil capacity6.9 US qt (6.53 L)
Engine manufacturerInternational Harvester D-155
Fuel typeDiesel
Cylinders3
Displacement2.5 L
Tractor typeUtility Tractor
Overview
Model information
Manufacturer
International Harvester
Model
423
Category
Farm tractor
Model years
1966 – 1975
Tractor type
Utility Tractor
Engine / capacity variants
1
Full specifications
Technical details
Engine details
Engine manufacturerInternational Harvester D-155
Fuel typeDiesel
Cylinders3
Displacement2.5 L
Oil service data
Published capacity6.9 US qt (6.53 L)
US gallon equivalent1.73 gal
Oil to have on hand1 × 1-gal jug + 3 × 1-qt bottles (~0.1 qt spare)
