The exterior is smooth and resists oil

John Deere Forage Harvester: 6850

Fits Kubota M62 Tractor - Replaces TD27093232 3282193220 HH16432430 HHTA037710 HHTA059900 1J80043170

Replaces 63858D

Caterpillar Pipelayer: 583T

Maxiforce Basic Engine Kit, .50MM Pistons, .020" Main Bearings, .010" Rod Bearings, Turbo Aftercooled, C2.2 for Caterpillar 1F210 The exterior is smooth andAftermarket Basic Engine Kit. Direct replacement for OEM BK559 20 10. Please verify fitment against your equipment's serial and engine casting numbers before ordering. Cross references are provided as a guide; the customer is responsible for confirming compatibility.