PRODUCT OVERVIEW: – This engine oil cooler hose assembly matches the fit and function of the original equipment components for reliable repair and restoration of proper oil circulation between the oil cooler and engine. Browse our Top Categories. Part: Engine Oil Cooler Hose. OEM Number: 15104803, 15158540. Supplier Title: Engine Oil Cooler Line. Maintenance Parts For GMC C3500HD. Other Recommended Parts For GMC C3500HD. All carrier-related damage or loss claims must be made with the carrier within 48 hours of item receipt. My truck no longer surges up and down and I get better Gas mileage. Thankyou for sending me the correct part. Everything went as expected. Fast charging as promised.. Better quality than the OEM.. A+ and highly recommended. Within 5 days of ordering the window I received it. There were no damages. Window was an exact fit. Aftermarket replacement mirror fits perfectly, has a great price and was delivered ahead of schedule!