The engine in the Cat 587T Pipelayer
Fitment for the Cat 587T Pipelayer centres on the Cat C9: 8.8L / 537 cu in, 6-cyl inline, 112 x 149 mm bore x stroke, about @ 1800–2200 rpm, Tier 3/4. Serial number on the block settles the exact version. New-surplus and rebuilt stock ships from Houston.