Motorad 5242-170 Engine Coolant Thermostat

Reliable Engine Coolant Thermostat for Acura, Ford, Honda, and More

The Motorad UltraStat 5242-170 engine coolant thermostat is designed to maintain optimal engine temperature for a range of vehicles including Acura Accord, Honda Civic, and Toyota Pickup. Engineered to open at 170 degrees Fahrenheit, this thermostat ensures efficient coolant flow and engine performance.

• Sealing flange outside diameter: 2.04 inches
• Bypass diameter: 1.09 inches
• Bypass length: 1.37 inches
• Flange thickness: 0.05 inches
• Includes jiggle pin weep hole for air bleeding
• Temperature rating: 170°F
• No gasket or seal included
• No installation tool included

About the Motorad UltraStat Product Line

The UltraStat line by Motorad focuses on precision-engineered thermostats that meet strict OEM specifications. This product line emphasizes consistent temperature regulation and durability, making it suitable for various makes and models such as Ford Transit and Isuzu Oasis. The 5242-170 thermostat is part of this line, offering reliable thermal control for your engine cooling system.

Detailed Product Description

The Motorad UltraStat 5242-170 thermostat features a sealing flange with an outside diameter of 2.04 inches and a flange thickness of 0.05 inches, ensuring a secure fit within the cooling system housing. The built-in jiggle pin weep hole allows trapped air to escape, preventing air pockets that can cause overheating. With a bypass diameter of 1.09 inches and a bypass length of 1.37 inches, this thermostat facilitates proper coolant circulation during engine warm-up phases. Designed to open at 170 degrees Fahrenheit, it helps maintain optimal engine temperature for efficient performance and reduced emissions.

Compatible Vehicles and Common Applications

• Acura Accord and CL models
• Ford Transit and Pickup trucks
• Honda Civic, CR-V, CRX, Integra, and Prelude
• Isuzu Oasis
• Toyota Legend

Common Issues Addressed by This Thermostat

• Engine overheating due to stuck thermostat
• Poor heater performance from improper coolant flow
• Coolant bypass problems causing inefficient temperature regulation
• Air pockets in cooling system leading to hot spots
• Engine running too cold, affecting fuel efficiency

Installation Notes and Tips

Before installation, ensure the engine is cool to avoid burns. The Motorad UltraStat 5242-170 does not include a gasket or seal, so use the existing or a new compatible gasket to prevent leaks. The jiggle pin weep hole should be positioned at the highest point to allow air to escape. No special installation tools are included, but standard hand tools are sufficient for replacement. Verify compatibility with your specific make and model before installation.

Quality Assurance and Warranty

Motorad UltraStat thermostats are manufactured to meet or exceed OEM standards for durability and performance. While specific warranty details for part number 5242-170 are not provided, Motorad products typically come with a limited warranty against defects in materials and workmanship. For warranty information, consult the product packaging or Motorad’s official resources.