The Ford F81Z-8075-AA is the lower degas-bottle hose for a 1999–2003 7.3 Powerstroke. It is the hose on the bottom of the bottle. The overflow hose is JL3Z-8075-C, which replaces F81Z-8075-AB.

A split lower hose is a coolant puddle under the bottle and a low level with no leak at the radiator. Clamps are not included. The aluminum bottle is Mishimoto MMRT-F2D-99EN.

It fits 1999–2003 Super Duty 7.3 trucks.

Fitment

• 1999–2003 Ford 7.3L Powerstroke
• Lower degas hose
• Genuine Ford F81Z-8075-AA
• Hose only
• Clamps not included

Pull the bottle to reach the upper clamp and rinse the sediment out. Replace the clamps. Top the bottle off and check it hot.