MAHLE TX 25 87D Engine Coolant Thermostat Insert - OE Temperature 87°C

The MAHLE TX 25 87D is an OE-grade engine coolant thermostat insert engineered to maintain precise operating temperatures in your vehicle's cooling system. Designed to meet or exceed original equipment manufacturer (OEM) specifications, this thermostat insert delivers the factory-correct fit, form, and function expected from a premium MAHLE Original component.

As a critical part of the engine cooling system, the thermostat regulates coolant flow between the engine and radiator — keeping the engine at its optimal operating temperature as quickly and efficiently as possible. The "87D" designation in the part number directly indicates the thermostat's opening temperature of 87°C (189°F), consistent with OE temperature calibration.

Key Features:

• OEM-Spec Design: Engineered to vehicle manufacturers' original specifications for direct replacement
• 87°C Opening Temperature: Factory-correct thermal calibration for optimal engine performance and fuel efficiency
• Insert-Type Thermostat: Drop-in thermostat insert design for straightforward installation
• Gasket/Seal Included: Comes with the necessary sealing components for a complete installation
• Premium Construction: Built by MAHLE, a globally trusted OEM supplier, for long-term durability and reliability

Cross-Reference / OEM Part Numbers: 069 121 113, 069121113, 3273728, 2.114.87.312, 33518, 304-192, 13588

MAHLE is a world-leading manufacturer of OE and aftermarket engine components, trusted by automakers and professional technicians worldwide. The TX 25 87D thermostat insert ensures your engine reaches operating temperature quickly and stays there — protecting against overheating, improving fuel economy, and reducing engine wear.