This Fleetguard Aftermarket fuel filter with interchange part number FS20313 is designed for Volvo D11/D13 and Mack MP7/MP8 engines. The filter is made of paper and metal with a rubber gasket material, ensuring easy installation. It is a reliable replacement for your fuel separator, with OE/OEM part numbers 24009058 and 24009059. This product is perfect for those looking for a high-quality fuel filter without breaking the bank.