F87Z-18495-AA, F87H-18495-AA Heater Control Valve, 4-Port Vacuum Operated HVAC Coolant Control Valve, Replacement for F87H18495AA F87Z18495AA, Compatible with Mid-Size Trucks & SUVs

This 4-port vacuum-operated heater control valve is a high-quality aftermarket replacement part, engineered to restore your vehicle’s heating system. It regulates coolant flow to the heater core, allowing you to adjust cabin temperature effectively.Made of heat-resistant, corrosion-proof plastic, this valve resists cracking, leaking, and damage from hot coolant and engine bay conditions. It matches the fit, form, and function of the original valve for easy installation without modifications.Common Symptoms of a Failing Heater Control Valve:No heat or insufficient heat from the ventsHeater stuck on hot or cold modeCoolant leaks under the dashboard or engine bayErratic cabin temperature controlCross-Reference Part Numbers:F87H18495AA, F87Z18495AA, F87Z-18495-AA, F87H-18495-AA, YG350, F4TZ-18495-B, F5TZ-18495-AFitment VehiclesExplor-er (1994-2010)Explor-er Sport (2002-2003)Explor-er Sport Trac (2002-2010)Rang-er (1995-2011)Aerost-ar (1994-1997)B2300 (1995-2008)B2500 (1998-2001)B3000 (1995-2003)B4000 (1995-2003)Nava-jo (1994)Mountaine-er (1998-2010)Aviat-or (2003-2005)Important Note: Does not fit models with automatic climate control. Fits only manual climate control systems.

• Direct Replacement Heater Valve: Matches the function and fit of OEM part numbers F87H18495AA, F87Z18495AA, F87Z-18495-AA, F87H-18495-AA, YG350, F4TZ-18495-B, F5TZ-18495-A.
• Wide Compatibility: Designed for 1994-2010 Explor-er, 1995-2011 Rang-er, 1994-1997 Aerost-ar, and Mazda B2300/B2500/B3000/B4000/Navajo models.
• Restore Cabin Heating Performance: Controls coolant flow to the heater core to resolve issues like no heat, intermittent heat, stuck temperature control, and coolant leaks.
• Durable Heat-Resistant Build: Constructed with premium corrosion-resistant plastic to withstand high engine bay temperatures and prevent cracking or leaking.
• Vacuum-Operated Design: Smooth, reliable operation matches the original system’s performance, recommended to install by a professional mechanic.