“FOR:A/E LO END COVER: 2 NOS MODEL: 6N18L-EV MAKER: YANMAR DIESEL ENGINE. DRAWING NUMBER: Fig.21-1 PART NUMBER: 146674-33170″ A/E LUB OIL COOLER END COVER OUTLET NEED TO REPAIR OR REPLACE. YANMAR DIESEL ENGINE.6N18L-EV.NA