The engine in the Caterpillar 259B Series 3
Fitment for the Caterpillar 259B Series 3 centres on the Cat C3.4 DIT: 3.4L / 207 cu in, 4-cyl inline, 94 x 120 mm bore x stroke, about @ 2500 rpm, Tier 3. Serial number on the block settles the exact version. New-surplus and rebuilt stock ships from Houston.