Ford AX4S Valve Body 1998-2003 XF/YF Casting#

This listing is for a Remanufactured Ford AX4S Valve Body, model years 1998-2003, Casting Number beginning with XF or YF. Please see the photos and illustrations below in our Technical Information section for useful tips and information.

This valve body is better than OEM, it features many upgrades to increase reliability over the standard OEM valve body.

These upgrades include: Upgraded Boost/TCC regulator and Bypass Valves, New Pump Bearing, Sleeve and Pump Vanes, New EPC Solenoid, all other solenoids are tested and rebuilt or replaced with new. Pump assembly, plate and all gaskets are included. 

PLEASE NOTE: There is a $50.00 Refundable Core Charge that is added at checkout. Once you remove your defective valve body and return it to us, the Core Charge will be refunded to you. For detailed instructions, please read the Core Charge section on our FAQs/Glossary page.

If you need help identifying the valve body you need, we can do a VIN# lookup for your vehicle to make sure you get the right part the first time. Please see the Technical Information/Identification Guide below for information on how to properly identify the valve body your vehicle needs. If you have questions or need assistance please contact us and we will do our best to assist you.

The Casting Number will begin with an XF or YF. See the RED ARROW in the above photo for the Casting Number location.



In the photo above you can see the PWM Blue Lock-Up Solenoid(1) and the location of the XF/YF Casting Number(2).