Motorad 523-180 Engine Coolant Thermostat

Reliable Engine Coolant Thermostat for GM and Saab Vehicles

The Motorad Standard 523-180 engine coolant thermostat is designed to maintain optimal engine temperature for a range of GM and Saab models. Engineered to meet precise specifications, this thermostat ensures efficient coolant flow and temperature regulation at 180 degrees Fahrenheit.

• Sealing flange outside diameter: 2.2 inches for secure fitment
• Includes a rubber gasket for reliable sealing
• Jiggle pin weep hole to prevent air lock and ensure proper coolant circulation
• Bypass diameter of 1.58 inches and bypass length of 2.12 inches for controlled coolant flow
• Flange thickness of 0.05 inches for durability and proper mounting
• Single rubber seal included for leak prevention
• Temperature rating of 180°F for consistent engine performance

About the Motorad Standard Product Line

The Motorad Standard line offers dependable replacement parts designed to meet original equipment specifications. The Standard series focuses on delivering quality and fitment accuracy for a wide range of vehicles, including Buick, Cadillac, Chevrolet, GMC, Hummer, and Saab. The 523-180 thermostat is part of this line, providing a balance of performance and value for engine cooling system maintenance.

Detailed Product Description

This Motorad Standard 523-180 engine coolant thermostat is engineered to regulate engine temperature by opening at 180 degrees Fahrenheit. The thermostat features a 2.2-inch sealing flange outside diameter and a 0.05-inch flange thickness, ensuring a precise and secure fit within the cooling system. The included rubber gasket provides a tight seal to prevent leaks, while the jiggle pin weep hole allows trapped air to escape, reducing the risk of overheating. The bypass diameter of 1.58 inches and bypass length of 2.12 inches facilitate controlled coolant flow, maintaining consistent engine temperature and preventing thermal shock.

Compatible Vehicles and Common Applications

• Buick models including Rainier and Enclave
• Cadillac CTS, Escalade, and Escalade ESV
• Chevrolet Silverado 1500, Avalanche, and Camaro
• GMC Sierra 1500, Canyon, and Yukon XL
• Hummer H2, H3, and H3T
• Saab 9-7x

Common Issues Addressed by This Thermostat

• Engine overheating due to thermostat failure
• Coolant leaks from worn or damaged seals
• Poor engine temperature regulation causing inefficient performance
• Air pockets in the cooling system leading to hot spots
• Premature engine wear from inconsistent coolant flow

Installation Notes and Tips

Ensure the engine is cool before removing the old thermostat to avoid burns. Clean the thermostat housing surface thoroughly before installing the new Motorad Standard 523-180 thermostat and gasket. Verify the jiggle pin is positioned correctly to allow air to escape. Tighten mounting bolts to manufacturer torque specifications to prevent leaks. No installation tool is included, so use appropriate hand tools for removal and installation.

Quality Assurance and Warranty

Motorad Standard thermostats are manufactured to meet or exceed OEM standards for fit and function. The 523-180 thermostat includes a high-quality rubber gasket to ensure a reliable seal. While specific warranty details are not provided, Motorad products typically undergo rigorous quality control to ensure durability and performance in demanding automotive environments.