Motorad 268-170 Engine Coolant Thermostat

Reliable Engine Coolant Thermostat for Infiniti, Nissan, Mercury Vehicles

The Motorad Standard 268-170 engine coolant thermostat is designed to maintain optimal engine temperature for a range of Infiniti, Nissan, and Mercury models. Engineered to open at 170°F, this thermostat ensures efficient coolant flow and engine performance.

• Standard type engine coolant thermostat with jiggle pin weep hole
• Sealing flange outside diameter: 2.52 inches
• Height between flanges: 1.75 inches; overall height: 2.5 inches
• Bypass diameter: 0.98 inches; bypass length: 1.88 inches
• Flange thickness: 0.05 inches; no gasket or seal included
• Start to open temperature: 170°F for precise temperature regulation
• Compatible with Infiniti, Nissan, and Mercury models including 300ZX, Maxima, Pathfinder, and more

About the Motorad Standard Product Line

The Motorad Standard line offers dependable engine cooling components designed to meet OEM specifications. This Standard thermostat model 268-170 provides consistent temperature control and durability, making it suitable for various Nissan, Infiniti, and Mercury vehicles. The line focuses on delivering reliable performance without additional installation tools or seals, catering to professional mechanics and experienced DIY installers.

Detailed Product Description

This Motorad Standard 268-170 thermostat features a jiggle pin weep hole to allow air to escape from the cooling system, preventing air locks and ensuring smooth coolant circulation. The thermostat opens at 170 degrees Fahrenheit, which is critical for maintaining the engine’s ideal operating temperature. Its precise dimensions, including a 2.52-inch sealing flange outside diameter and a 1.75-inch height between flanges, ensure a proper fit in the cooling system housing. The bypass diameter and length facilitate controlled coolant flow during warm-up phases. Note that this thermostat does not include a gasket or seal, so a compatible seal should be sourced separately during installation.

Compatible Vehicles and Common Applications

• Infiniti models: 200SX, 300ZX, J30, M30, Q45, QX4
• Nissan models: D21, Frontier, Maxima, Pathfinder, Pickup, Quest, Xterra, Villager
• Mercury models: Compatible with select models requiring a 170°F thermostat
• Helps resolve engine overheating and poor temperature regulation
• Addresses coolant flow restrictions and thermostat sticking issues

Installation Notes and Tips

• Ensure the cooling system is fully drained before removing the old thermostat
• Check the housing and sealing surfaces for damage or corrosion
• Use a compatible gasket or seal as this product does not include one
• Verify the thermostat orientation and jiggle pin position during installation
• Bleed the cooling system to remove trapped air after installation

Quality Assurance and Warranty

The Motorad Standard 268-170 thermostat is manufactured to meet industry standards for durability and performance. While no specific warranty information is provided, Motorad products typically adhere to strict quality control processes to ensure reliable operation in compatible Infiniti, Nissan, and Mercury vehicles.