PRODUCT OVERVIEW: - This valve cover gasket is designed to precisely match the original equipment gasket for specific engine applications. Made of durable materials, this gasket provides a long-lasting seal under extreme underhood conditions. Part: Engine Valve Cover Gasket. OEM Number: 3975641, 4992982, 5179091AA, 5179091AB, 5179091AC. Supplier Title: Diesel Valve Cover Gasket Kit.Maintenance Parts For FREIGHTLINER BUSINESS CLASS. Other Recommended Parts For FREIGHTLINER BUSINESS CLASS. 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. Better quality than the OEM.. Within 5 days of ordering the window I received it. Window was an exact fit. Aftermarket replacement mirror fits perfectly, has a great price and was delivered ahead of schedule!