Motorad 621-192 Engine Coolant Thermostat

Reliable Engine Coolant Thermostat for Hyundai and Kia Vehicles

The Motorad Standard 621-192 engine coolant thermostat is designed to maintain optimal engine temperature for select Hyundai and Kia models. Engineered with precision, this thermostat ensures efficient coolant flow and temperature regulation to support engine performance and longevity.

• Sealing flange outside diameter: 2.12 inches
• Height between flanges: 1.44 inches
• Overall height: 2.05 inches
• Start to open temperature: 192°F
• Includes rubber gasket with O-ring seal
• Features jiggle pin weep hole for pressure relief
• Bypass diameter: 1.09 inches; bypass length: 1.36 inches
• Flange thickness: 0.05 inches

About the Motorad Standard Product Line

The Motorad Standard line offers dependable engine cooling components designed to meet OEM specifications. This product line focuses on delivering consistent performance and durability, making it suitable for routine maintenance and replacement needs. The 621-192 thermostat is part of this line, providing a balance of quality and value for Hyundai Optima, Sonata, Santa Fe Sport, and Kia Sportage vehicles.

Detailed Product Description

This engine coolant thermostat regulates coolant flow by opening at 192 degrees Fahrenheit, helping maintain the engine’s ideal operating temperature. The thermostat features a sealing flange with a 2.12-inch outside diameter and a height of 2.05 inches, ensuring a proper fit within the cooling system. The included rubber gasket with an O-ring seal provides a secure, leak-resistant connection. Additionally, the jiggle pin weep hole allows for pressure relief, preventing coolant system damage. The bypass diameter and length are designed to facilitate controlled coolant circulation during engine warm-up.

Compatible Vehicles and Common Applications

• Hyundai Optima engine temperature regulation issues
• Hyundai Sonata overheating or inconsistent temperature
• Hyundai Santa Fe Sport coolant flow problems
• Kia Sportage thermostat replacement for temperature control
• Resolving coolant leaks related to thermostat housing seals

Installation Notes and Tips

Ensure the engine is cool before removing the old thermostat to avoid burns. Clean the thermostat housing surface thoroughly before installing the new gasket and thermostat to prevent leaks. Verify the jiggle pin is oriented correctly to allow proper pressure relief. Torque the housing bolts to manufacturer specifications to avoid warping or damage. This part does not include an installation tool, so use appropriate hand tools for removal and installation.

Quality Assurance and Warranty

The Motorad Standard 621-192 thermostat is manufactured to meet industry standards for durability and performance. It includes a rubber gasket and O-ring seal to ensure a reliable, leak-free installation. While specific warranty details are not provided, Motorad products typically adhere to quality control processes consistent with OEM replacement parts.