Motorad 620-180 Engine Coolant Thermostat

Overview of Motorad Standard Engine Coolant Thermostat 620-180

The Motorad Standard Engine Coolant Thermostat 620-180 is designed specifically for Mazda RX-8 vehicles, ensuring precise temperature regulation for optimal engine performance. This thermostat features a 180°F start-to-open temperature and includes a rubber gasket for reliable sealing.

• Sealing flange outside diameter: 2.04 inches
• Height between flanges: 1.6 inches
• Overall height: 2.28 inches
• Standard type thermostat with jiggle pin weep hole
• Includes one rubber O-ring seal and gasket
• Bypass diameter: 1.09 inches; bypass length: 1.58 inches
• Flange thickness: 0.05 inches
• Start to open temperature: 180°F

Detailed Product Description

This Motorad Standard thermostat (part number 620-180) is engineered to maintain the Mazda RX-8 engine coolant temperature at 180 degrees Fahrenheit, which helps prevent overheating and promotes efficient engine operation. The thermostat features a jiggle pin weep hole to allow air to escape from the cooling system, reducing the risk of air pockets. The included rubber O-ring seal and gasket ensure a secure, leak-free installation. Its precise dimensions, including a 2.04-inch sealing flange outside diameter and 1.6-inch height between flanges, make it a direct replacement for the original equipment.

The Standard product line from Motorad focuses on delivering reliable, OEM-quality components that meet factory specifications. This thermostat is part of that line, providing consistent performance and durability for Mazda RX-8 owners requiring a dependable engine coolant thermostat.

Applications and Common Issues Addressed

• Regulates engine temperature to prevent overheating
• Replaces faulty or stuck thermostats causing poor engine warm-up
• Eliminates coolant leaks with included rubber gasket and O-ring seal
• Prevents air pockets in the cooling system via jiggle pin weep hole
• Restores proper coolant flow for improved engine efficiency

Installation Notes and Tips

• Compatible with Mazda RX-8 models requiring a 180°F thermostat
• Ensure the cooling system is fully drained before removal
• Inspect and clean the thermostat housing before installation
• Replace the gasket and O-ring seal included with the thermostat to prevent leaks
• Torque bolts to manufacturer specifications to avoid damage

Quality Assurance and Warranty

The Motorad Standard Engine Coolant Thermostat 620-180 is manufactured to meet strict quality standards, ensuring reliable operation and fitment for Mazda RX-8 vehicles. The product includes a rubber gasket and O-ring seal to maintain a secure, leak-free installation. While specific warranty details are not provided, Motorad products typically adhere to industry quality controls to support long-term durability and performance.