Motorad 543-170 Engine Coolant Thermostat

Reliable Engine Coolant Thermostat for Nissan Sentra

The Motorad Standard 543-170 engine coolant thermostat is designed to maintain optimal engine temperature for Nissan Sentra models. Engineered to open at 170 degrees Fahrenheit, this thermostat ensures efficient coolant flow and engine performance.

• Sealing flange outside diameter: 1.89 inches
• Standard type thermostat with jiggle pin weep hole
• Start to open temperature: 170°F for precise temperature regulation
• Bypass diameter: 1.09 inches and bypass length: 1.26 inches for proper coolant circulation
• Compatible with Nissan Sentra vehicles requiring a 543-170 thermostat

Product Line Details: Motorad Standard

The Motorad Standard line offers dependable engine cooling components designed to meet OEM specifications. This line focuses on delivering consistent performance and durability, making it suitable for routine maintenance and replacement needs. The 543-170 thermostat from the Standard line provides reliable temperature control tailored for Nissan Sentra engines.

Technical Description and Features

This engine coolant thermostat features a jiggle pin weep hole that helps prevent air locks in the cooling system, promoting smooth coolant flow. The thermostat opens at a precise 170 degrees Fahrenheit, allowing coolant to circulate through the radiator once the engine reaches optimal operating temperature. The sealing flange outside diameter of 1.89 inches ensures a secure fit within the thermostat housing. Additionally, the bypass diameter and length (1.09 inches and 1.26 inches respectively) facilitate proper coolant bypass flow, maintaining engine temperature stability during warm-up.

Common Applications and Problem Resolution

• Prevents engine overheating by regulating coolant flow
• Helps avoid poor heater performance due to thermostat failure
• Reduces engine warm-up time for improved fuel efficiency
• Eliminates coolant leaks caused by damaged or worn thermostats
• Maintains consistent engine temperature to prevent component wear

Installation Notes and Tips

Ensure the thermostat housing and sealing surfaces are clean before installation. The Motorad Standard 543-170 thermostat does not include a gasket or seal, so use the appropriate OEM gasket or sealant as required. Verify the jiggle pin is positioned correctly to allow air to escape during coolant system bleeding. No special installation tools are included with this part.

Quality Assurance and Warranty

Motorad Standard thermostats are manufactured to meet industry standards for durability and performance. While specific warranty details are not provided, Motorad products typically adhere to quality control processes to ensure reliable operation in Nissan Sentra vehicles. Always consult your vehicle’s service manual for proper installation and maintenance guidelines.