Motorad 523-160 Engine Coolant Thermostat

Reliable Engine Coolant Thermostat for GM and Saab Vehicles

The Motorad Standard 523-160 engine coolant thermostat is designed to maintain optimal engine temperature for a range of GM and Saab models. Engineered to open at 160°F, this thermostat ensures efficient coolant flow and engine performance.

• Sealing flange outside diameter: 2.2 inches
• Height between flanges: 1.89 inches
• Overall height: 2.7 inches
• Standard type thermostat with jiggle pin weep hole
• Includes rubber gasket with O-ring seal
• Bypass diameter: 1.58 inches; bypass length: 2.12 inches
• Flange thickness: 0.05 inches
• Start to open temperature: 160°F
• Compatible with multiple GM and Saab models

About the Motorad Standard Product Line

The Motorad Standard line offers dependable replacement parts designed to meet OEM specifications. This engine coolant thermostat from the Standard series provides consistent temperature regulation and reliable sealing, making it suitable for various Buick, Cadillac, Chevrolet, GMC, Hummer, and Saab vehicles.

Product Details and Specifications

The Motorad 523-160 thermostat features a sealing flange with a 2.2-inch outside diameter and a height of 2.7 inches, ensuring a precise fit within the cooling system. The included rubber gasket with an O-ring seal enhances leak prevention. The thermostat incorporates a jiggle pin weep hole to allow air to escape, preventing air locks and promoting smooth coolant circulation. Designed to open at 160 degrees Fahrenheit, it helps maintain optimal engine operating temperature. The bypass diameter of 1.58 inches and length of 2.12 inches support proper coolant flow during engine warm-up.

Compatible Vehicles and Applications

• Buick models including Rainier and Enclave
• Cadillac CT6, CTS, Escalade, Escalade ESV, Escalade EXT
• Chevrolet Avalanche, Camaro, Colorado, Corvette, Express 1500/2500/3500, Silverado 1500/2500/3500, Suburban 1500/2500/3500 HD, Tahoe, Trailblazer
• GMC Canyon, Sierra 1500/2500/3500, Savana 1500/2500/3500, Yukon, Yukon XL 1500/2500
• Hummer H2, H3, H3T
• Saab 9-7x

Common Issues Addressed by This Thermostat

• Engine overheating due to thermostat failure
• Poor engine warm-up performance
• Coolant leaks from worn seals or gaskets
• Air trapped in cooling system causing inefficient flow
• Inconsistent engine temperature regulation

Installation Notes and Tips

This thermostat does not include an installation tool, so ensure you have the proper tools for removal and installation. Verify the sealing flange and gasket surfaces are clean before installation to prevent leaks. The included rubber gasket with O-ring seal should be properly seated to maintain a secure seal. Check the jiggle pin weep hole is unobstructed to allow air to escape during coolant circulation.

Quality Assurance and Warranty

The Motorad Standard 523-160 thermostat is manufactured to meet industry standards for durability and performance. It includes a rubber gasket and O-ring seal to ensure reliable sealing. While specific warranty details are not provided, Motorad products typically adhere to quality control processes consistent with OEM replacement parts.