The ACL main bearing set for International Trac 4 D206/D239/DT239 engines is a crankshaft main bearing kit that restores bearing surfaces and running clearances during an engine overhaul. Supplied as a complete main bearing set, it’s intended for engine rebuilding and repair where the crankshaft support surfaces require replacement to return reliable bearing support.

ACL International Trac. 4 D206/D239/DT239 Engine Crankshaft Main Bearing Set