FOR SALE CATERPILLAR ENGINE 3406 MODEL, 450HP 3050RPM $18,000.00 FOR SALE CATERPILLAR ENGINE 3406 MODEL, 450HP 3050RPM Engines, Diesel MMPL_MARINE March 7, 2023 CATERPILLAR ENGINE 3406 MODEL, 450HP 3050RPM EXCELLENT RUNNNING (VIDEO LINK GIVEN HERE) REFURBISHED