Motorad 635-180 Engine Coolant Thermostat

Reliable Engine Coolant Thermostat for Hyundai and Kia Vehicles

The Motorad Standard 635-180 engine coolant thermostat is designed to maintain optimal engine temperature for a range of Hyundai and Kia models. Engineered with precise temperature control and durable sealing components, this thermostat supports efficient engine performance and cooling system reliability.

• Start to open temperature: 180°F for accurate thermal regulation
• Sealing flange outside diameter: 2.5 inches ensuring proper fit
• Includes rubber gasket with O-ring seal for leak prevention
• Jiggle pin weep hole to allow air and coolant flow
• Bypass diameter of 1.18 inches and bypass length of 1.63 inches for controlled coolant circulation
• Flange thickness of 0.05 inches for secure mounting
• Height between flanges: 1.66 inches and overall height: 2.37 inches

About the Motorad Standard Product Line

The Motorad Standard line offers dependable replacement parts designed to meet original equipment specifications. The Standard engine coolant thermostat 635-180 provides consistent temperature control and sealing performance, making it suitable for routine maintenance and repair on compatible Hyundai and Kia vehicles.

Product Details and Specifications

This engine coolant thermostat features a start to open temperature of 180 degrees Fahrenheit, which helps regulate engine temperature by opening at the precise point to allow coolant flow. The included rubber gasket with an O-ring seal ensures a tight, leak-free installation. The jiggle pin weep hole facilitates the release of trapped air and prevents coolant buildup, contributing to efficient engine cooling. The thermostat’s bypass diameter and length are engineered to maintain proper coolant circulation when the thermostat is closed, protecting the engine from overheating.

Compatible Hyundai and Kia Models

• Hyundai Amanti, Azera, Santa Fe, Santa Fe XL, Sonata, Veracruz
• Kia Borrego, Cadenza, Entourage, Equus, Genesis, Genesis Coupe, K900, Sedona, Sorento

Common Issues Addressed by This Thermostat

• Engine overheating due to thermostat failure
• Coolant leaks from worn or damaged seals
• Poor engine temperature regulation affecting performance
• Air trapped in cooling system causing inefficient coolant flow
• Inconsistent engine warm-up times

Installation Notes and Tips

Ensure the engine is cool before removing the old thermostat. Clean the mounting surface thoroughly to prevent leaks. The Motorad 635-180 thermostat includes a rubber gasket with an O-ring seal, but no installation tool is included. Proper torque specifications should be followed to avoid flange damage. Verify the jiggle pin is positioned correctly to allow air release during installation.

Quality Assurance and Warranty

Motorad Standard thermostats are manufactured to meet OEM standards for fit and function. This part includes a high-quality rubber gasket and O-ring seal to ensure durability and leak resistance. While specific warranty details are not provided, Motorad products typically adhere to industry quality controls to support reliable operation in Hyundai and Kia vehicles.