Victor Reinz 71-13577-00 Engine Coolant Thermostat Gasket

OE-Style Thermostat Housing Seal

The Victor Reinz 71-13577-00 engine coolant thermostat gasket is a molded rubber O-ring type seal for the thermostat housing. It is built for Ford cooling system service where a precise seal is needed to keep coolant contained at the housing connection.

Victor Reinz is an original equipment supplier known for gasket technology used by manufacturers worldwide. This thermostat gasket follows OE-quality sealing standards and is a direct replacement for applications that call for part number 71-13577-00.

Key Features

• Molded rubber construction for thermostat housing sealing
• O-ring type design for a secure coolant seal
• OE-quality gasket technology from Victor Reinz
• Direct replacement for Ford cooling system service
• Cross-references MAHLE C32036 for the same application

Fitment Coverage

• Fits 2003 Ford E-350 Club Wagon, at thermostat housing; O-ring type; replaces OE part number F4TZ-8255-A.
• Fits 1999-2003 Ford E-350 Super Duty, at thermostat housing; O-ring type; replaces OE part number F4TZ-8255-A.
• Fits 2000-2003 Ford Excursion, at thermostat housing; O-ring type; replaces OE part number F4TZ-8255-A.
• Fits 1999-2003 Ford F-250 Super Duty, at thermostat housing; O-ring type; replaces OE part number F4TZ-8255-A.
• Fits 1999-2003 Ford F-350 Super Duty, at thermostat housing; O-ring type; replaces OE part number F4TZ-8255-A.
• Fits 1995-2002 Ford E-350 Econoline Club Wagon, at thermostat housing; O-ring type; replaces OE part number F4TZ-8255-A.
• Fits 1995-1998 Ford E-350 Econoline, at thermostat housing; O-ring type; replaces OE part number F4TZ-8255-A.
• Fits 1997 Ford F-250 HD, at thermostat housing; O-ring type; replaces OE part number F4TZ-8255-A.
• Fits 1994-1997 Ford F-350, at thermostat housing; O-ring type; replaces OE part number F4TZ-8255-A.
• Fits 1994-1996 Ford F-250, at thermostat housing; O-ring type; replaces OE part number F4TZ-8255-A.

What It Helps Repair

• Coolant seepage at the thermostat housing
• Leaks caused by a flattened or worn thermostat gasket
• Loss of sealing after thermostat service on Ford trucks and vans
• Cooling system drips around the housing connection
• Repeat repairs when the original seal no longer seats properly

Installation Notes

Install the gasket at the thermostat housing and verify the sealing surface is clean, flat, and free of old residue before assembly. Confirm the replacement matches the OE reference F4TZ-8255-A and the vehicle application before installation. This part number, 71-13577-00, is used on multiple Ford E-Series, Excursion, and Super Duty applications with thermostat housing O-ring style sealing.

Quality Assurance

Victor Reinz supplies OE-level gasket and sealing technology to vehicle manufacturers and aftermarket service channels. The 71-13577-00 thermostat gasket is made with molded rubber construction to support consistent sealing performance in the listed Ford applications.