Victor Reinz 71-16398-00 Engine Coolant Pipe O-Ring

OE-Quality Coolant Pipe Sealing

Victor Reinz 71-16398-00 is an engine coolant pipe O-ring built with FKM material for dependable sealing in cooling system service. Its black finish, 0.489-inch inside diameter, and 0.070-inch thickness make it a precise sealing component for Ford, Lincoln, and Mercury applications that use this size.

For repairs on vehicles such as the Ford F-150, Ford Expedition, and Lincoln Navigator, this O-ring supports a tight seal at the coolant pipe connection. Victor Reinz 71-16398-00 is an OE-quality sealing solution from a trusted original equipment supplier.

• FKM construction for heat- and fluid-resistant sealing performance
• Black coolant pipe O-ring with 0.489-inch I.D. and 0.070-inch thickness
• Direct-fit sealing component for select Ford, Lincoln, and Mercury cooling system applications
• OE-quality engineering from Victor Reinz
• Cross-reference: MAHLE GS33800

Detailed Product Information

This engine coolant pipe O-ring is used at the coolant pipe interface to maintain a secure seal and help prevent coolant loss at the connection point. The FKM material is selected for sealing applications where resistance to heat and automotive fluids matters, making it a practical choice for cooling system maintenance on many Ford truck, SUV, and car platforms. Part number 71-16398-00 is also referenced by ES73048 and MAHLE GS33800 for the same application.

Compatible With Ford F-150, Ford Explorer, Ford Mustang, Lincoln Town Car, and Mercury Grand Marquis applications that call for the listed dimensions. It also appears in fitment for Ford E-Series vans, Expedition, Navigator, Crown Victoria, and related models across the 1987-2016 range.

What It Helps Address

• Coolant seepage at the pipe-to-housing sealing point
• Loss of seal integrity from aged or flattened O-rings
• Cooling system leaks during pipe or housing service
• Maintenance on Ford, Lincoln, and Mercury coolant connections

Installation Notes

Confirm the inside diameter and thickness before installation to match the original seal. Clean the sealing surfaces thoroughly, inspect the coolant pipe and mating bore for wear or corrosion, and lubricate the O-ring with the correct coolant or assembly lubricant before seating it. Verify proper alignment during reassembly to avoid pinching or twisting the seal.

Quality Assurance

Victor Reinz is an original equipment supplier known for OE-quality gasket and sealing technology. This part is engineered to meet the dimensional and material requirements needed for reliable cooling system sealing in the listed applications.

Fitment

• Fits 1999-2016 Ford E-350 Super Duty, N/A
• Fits 2003-2014 Ford E-150, N/A
• Fits 2003-2014 Ford E-250, N/A
• Fits 1997-2014 Ford Expedition, N/A
• Fits 1994-2014 Ford Mustang, N/A
• Fits 1998-2014 Lincoln Navigator, N/A
• Fits 1992-2011 Ford Crown Victoria, N/A
• Fits 1991-2011 Lincoln Town Car, N/A
• Fits 1992-2011 Mercury Grand Marquis, N/A
• Fits 2002-2010 Ford Explorer, N/A
• Fits 2007-2010 Ford Explorer Sport Trac, N/A
• Fits 1997-2010 Ford F-150, N/A
• Fits 1999-2010 Ford F-250 Super Duty, N/A
• Fits 1999-2010 Ford F-350 Super Duty, N/A
• Fits 2002-2010 Mercury Mountaineer, N/A
• Fits 2006-2008 Lincoln Mark LT, N/A
• Fits 2004-2007 Ford Freestar, N/A
• Fits 2005-2006 Ford GT, N/A
• Fits 2003-2005 Ford E-150 Club Wagon, N/A
• Fits 2003-2005 Ford E-350 Club Wagon, N/A
• Fits 2000-2005 Ford Excursion, N/A
• Fits 2003-2005 Lincoln Aviator, N/A
• Fits 2004 Ford F-150 Heritage, N/A
• Fits 2003-2004 Mercury Marauder, N/A
• Fits 1995-2003 Ford Windstar, N/A
• Fits 1997-2002 Ford E-150 Econoline, N/A
• Fits 1997-2002 Ford E-150 Econoline Club Wagon, N/A
• Fits 1997-2002 Ford E-250 Econoline, N/A
• Fits 1997-2002 Ford E-350 Econoline Club Wagon, N/A
• Fits 2002 Lincoln Blackwood, N/A
• Fits 1988-2002 Lincoln Continental, N/A
• Fits 1997-1999 Ford F-250, N/A
• Fits 1997-1998 Ford E-350 Econoline, N/A
• Fits 1993-1998 Lincoln Mark VIII, N/A
• Fits 1988-1997 Ford Thunderbird, N/A
• Fits 1987-1997 Mercury Cougar, N/A
• Fits 1988-1995 Ford Taurus, N/A
• Fits 1988-1995 Mercury Sable, N/A