A-Premium APTHE006 Engine Coolant Thermostat OEM Replacement

The A-Premium APTHE006 is a direct-fit, OEM-quality engine coolant thermostat designed as a reliable replacement for worn or failed factory thermostats. Built from metal construction, this thermostat is engineered to meet or exceed original equipment specifications, ensuring proper engine temperature regulation and long-lasting performance.

The engine coolant thermostat is a critical component of the vehicle's cooling system. It begins in the closed position during cold starts to help the engine reach operating temperature quickly, then opens gradually as coolant temperature rises to allow flow between the engine and radiator — continuously balancing heat to maintain the engine's ideal operating range. A failing thermostat can cause overheating, poor fuel economy, and engine damage.

Key Features:

• Opening temperature: 170°F (77°C)
• Metal construction for durability and heat resistance
• Direct OEM replacement — no modifications required
• Meets or exceeds original equipment performance standards
• Replaces OEM part numbers: 281-170, 5281170, 7281170, 78170, 9091603107, 28170

This thermostat is a straightforward drop-in replacement for vehicles that use the OEM 28170 / 281-170 series thermostat, making it a trusted choice for maintaining optimal engine health.