Four Seasons 91719 HVAC Heater Core

Reliable Four Seasons Heater Core for Efficient Cabin Heating

The Four Seasons Heater Core 91719 is engineered to restore your vehicle's heating system performance. Designed with durable copper and brass materials, this heater core ensures effective heat transfer and long-lasting operation for compatible makes and models.

• Core dimensions: 9-3/4 inches length, 7-3/4 inches width, 2 inches thickness
• Constructed from copper/brass for enhanced heat conductivity
• Core depth and height precisely 2.000 and 9.750 inches respectively
• Tube sizes: 0.625 inch (15.875 mm) and 0.750 inch (19.050 mm)
• Meets or exceeds OEM specifications for reliable fit and function
• Non-adjustable pipe positioning for direct replacement

About the Four Seasons Heater Core Product Line

The Four Seasons Heater Core line focuses on delivering HVAC components that meet or exceed original equipment manufacturer standards. The 91719 model exemplifies this commitment by using copper and brass materials that provide durability and efficient heat exchange. This product line is designed to offer dependable heating solutions for a variety of vehicle applications requiring precise core dimensions and OEM-level quality.

Detailed Product Description

This HVAC heater core from Four Seasons features a copper/brass construction that promotes efficient heat transfer within the vehicle’s heating system. With core dimensions of 9.75 inches in height, 7.75 inches in width, and 2 inches in thickness, it is engineered to fit specific vehicle models requiring these exact measurements. The heater core includes two tubes sized at 0.625 inch and 0.750 inch diameters, facilitating proper coolant flow. The pipe positioning is fixed, ensuring a straightforward replacement without the need for adjustments. This part number 91719 is designed to meet or exceed OEM standards, providing a reliable solution for restoring heating performance in compatible vehicles.

Common Applications and Issues Resolved

• Restores heating efficiency in vehicles with failing or leaking heater cores
• Eliminates coolant leaks inside the cabin caused by damaged cores
• Prevents engine overheating related to heater core malfunctions
• Resolves poor cabin heat output during cold weather conditions
• Addresses HVAC system contamination from corroded or clogged cores

Installation Notes and Tips

When installing the Four Seasons Heater Core 91719, ensure the core dimensions match the vehicle’s specifications for proper fitment. Since the pipe positioning is not adjustable, verify alignment with existing HVAC hoses before installation. It is recommended to flush the cooling system to remove debris and prevent premature core failure. Follow vehicle-specific service manuals for removal and installation procedures to maintain system integrity.

Quality Assurance and Warranty

The Four Seasons Heater Core 91719 is manufactured to meet or exceed OEM quality standards, ensuring dependable performance and durability. This part undergoes rigorous testing to comply with industry specifications. Please refer to Four Seasons’ warranty policy for coverage details, which typically includes protection against defects in materials and workmanship.