Motorad 5239-192 Engine Coolant Thermostat

Reliable Engine Coolant Thermostat for Select Buick and Chevrolet Models

The Motorad UltraStat 5239-192 engine coolant thermostat is designed to maintain optimal engine temperature for a range of vehicles including Buick, Chevrolet, Oldsmobile, Pontiac, and Suzuki models. Engineered to open at 192 degrees Fahrenheit, this thermostat helps ensure efficient engine performance and prevents overheating.

• Temperature rating: 192°F for precise engine temperature control
• Sealing flange outside diameter: 1.73 inches for proper fitment
• Flange thickness: 0.05 inches ensuring secure installation
• Includes jiggle pin weep hole to prevent air lock in cooling system
• Compatible with multiple Buick, Chevrolet, Oldsmobile, Pontiac, and Suzuki models
• No gasket or seal included; installation tool not provided

About the Motorad UltraStat Product Line

The UltraStat line by Motorad focuses on delivering thermostats that meet or exceed OEM specifications for temperature accuracy and durability. The 5239-192 thermostat is part of this line, offering reliable temperature regulation with a jiggle pin weep hole feature to improve coolant flow and reduce air pockets in the cooling system. This product line is tailored for professional repair and maintenance applications across various domestic and import vehicles.

Product Details and Specifications

This engine coolant thermostat features a 192-degree Fahrenheit opening temperature, suitable for maintaining optimal engine operating conditions. The sealing flange outside diameter measures 1.73 inches, and the flange thickness is 0.05 inches, ensuring a precise fit within the thermostat housing. The jiggle pin weep hole is included to allow trapped air to escape, which helps prevent overheating and coolant circulation issues. Note that this thermostat does not include a gasket or seal, and no installation tool is provided.

Compatible Vehicles and Applications

• Buick models: 88, 98, Allure, LaCrosse, Lucerne, Park Avenue, Regal, Riviera, LeSabre, LSS
• Chevrolet models: Camaro, Impala, Lumina, Monte Carlo
• Oldsmobile models: Intrigue
• Pontiac models: Firebird, Grand Prix
• Suzuki model: Swift

Common Issues Addressed by This Thermostat

• Engine overheating due to thermostat failure
• Poor engine warm-up performance
• Coolant circulation problems caused by stuck thermostat
• Air pockets in the cooling system leading to inefficient cooling
• Inconsistent engine temperature regulation

Installation Notes and Tips

Ensure the thermostat housing is clean and free of old gasket material before installation. Since this thermostat does not include a gasket or seal, use the appropriate OEM gasket or sealant recommended for your vehicle. The jiggle pin weep hole should be oriented properly to allow air to escape during coolant filling. No special installation tool is included, so standard hand tools compatible with your vehicle’s thermostat housing are required.

Quality Assurance and Warranty

The Motorad UltraStat 5239-192 thermostat is manufactured to meet industry standards for durability and performance. While specific warranty details are not provided, Motorad products typically undergo rigorous quality control to ensure reliable operation in compatible Buick, Chevrolet, Oldsmobile, Pontiac, and Suzuki vehicles.