Tesla Model S/X 2012 - 2021 Cooling Auxiliary Coolant Water Pump | 1067473 - 00 - H

The Thermal Balancer for Your Tesla’s High - Performance Systems

What Does It Do?

• Secondary Cooling Loop Circulation: While the main coolant pump handles the primary cooling tasks, this auxiliary pump is responsible for circulating coolant through the secondary cooling loops. These loops are crucial for components like the battery management system, motor controllers, and certain electronic modules. For example, during rapid charging sessions, the battery generates a significant amount of heat. The auxiliary pump ensures that coolant flows around the battery pack, dissipating this heat and preventing overheating. Overheating can lead to reduced battery lifespan, slower charging times, and even potential damage to the battery cells.
• Enhanced Thermal Management: In high - performance driving situations, such as when you're using the Ludicrous mode in your Model S or towing a heavy load with your Model X, the electric motors and power electronics generate substantial heat. The 1067473 - 00 - H pump redirects coolant to these areas, maintaining their operating temperatures within the optimal range. This not only protects these expensive components from thermal stress but also helps them perform at their peak, providing you with consistent power and acceleration.
• Climate Control Support: The auxiliary coolant water pump also contributes to the vehicle's climate control system. It helps regulate the temperature of the air - conditioning system's condenser, ensuring efficient cooling of the cabin. In hot weather, this is especially important as it enables the air - conditioning to work effectively, keeping you and your passengers comfortable. Without proper coolant circulation in this loop, the AC might struggle to cool the cabin, leading to an uncomfortable driving experience.

Signs of a Failing Pump

• Overheating Warnings: If you start receiving “Battery Overheating,” “Motor Controller Hot,” or similar warnings on your Tesla's dashboard, it could be a sign that the auxiliary coolant water pump is not functioning correctly. These warnings are the vehicle's way of alerting you that critical components are at risk of damage due to excessive heat.
• Reduced Charging Speed: A failing pump can cause the battery to overheat during charging. As a safety measure, the vehicle will then reduce the charging speed to prevent further heat buildup. If you notice that your Tesla is taking significantly longer to charge than usual, especially during fast - charging sessions, the auxiliary pump should be one of the first components you check.
• Unusual Noises: A malfunctioning pump may produce strange noises, such as a high - pitched whine or a grinding sound. These noises are typically a result of worn - out bearings or an impeller that is not spinning smoothly. If you hear any such noises coming from the front or under the hood of your vehicle (where the pump is usually located), it's a strong indication that the pump needs attention.
• Inconsistent Climate Control: If the air - conditioning in your Tesla is not cooling the cabin evenly or is blowing warm air intermittently, the auxiliary pump could be to blame. Since it plays a role in the climate control system's cooling loop, a faulty pump can disrupt the heat exchange process, leading to inconsistent cooling performance.

Why Choose the 1067473 - 00 - H Pump?

• OEM - Quality Construction: This pump is built to the same high - quality standards as the original equipment installed in your Tesla. It features a durable plastic housing that is resistant to corrosion and can withstand the high temperatures and pressures within the coolant system. The impeller, which is responsible for moving the coolant, is designed for maximum efficiency and long - term reliability.
• Precision Engineering: Engineered specifically for Tesla Model S and X models within the specified years, the 1067473 - 00 - H pump offers a perfect fit. It has been calibrated to deliver the exact coolant flow rate required by the secondary cooling loops, ensuring optimal thermal management. This precision engineering not only makes installation straightforward but also guarantees that the pump will work seamlessly with the rest of the vehicle's cooling system.
• Testing and Validation: Before reaching the market, this auxiliary coolant water pump undergoes rigorous testing. It is tested in various simulated driving conditions, including extreme heat, cold, and high - load scenarios, to ensure its performance and durability. This comprehensive testing process gives you peace of mind, knowing that you're installing a product that has been thoroughly vetted and is up to the task of keeping your Tesla's components cool.

What's Included in the Package?

• 1x 1067473 - 00 - H Cooling Auxiliary Coolant Water Pump: The main pump unit, ready for installation.
• Mounting Hardware: All the necessary bolts, nuts, and washers to securely attach the pump to your vehicle.
• Gaskets and Seals: High - quality gaskets and seals are included to prevent coolant leaks, ensuring a tight and reliable connection between the pump and the coolant hoses.

Installation Considerations

• Professional Installation Recommended: While some experienced DIYers may be able to install the auxiliary coolant water pump themselves, it is highly recommended to have it installed by a professional mechanic or a Tesla - authorized service center. The installation process involves draining the coolant, removing and replacing the old pump, and then refilling the coolant system. Any mistakes during this process, such as improper sealing or incorrect installation of the pump, can lead to coolant leaks or reduced cooling efficiency.
• Time and Tools Required: Professional installation typically takes around 1 - 2 hours, depending on the mechanic's experience and the specific model of your Tesla. Basic tools such as wrenches, screwdrivers, and a coolant drain pan are required for the job. Additionally, the mechanic will need to use a diagnostic tool to reset any fault codes that may be generated during the pump replacement process.

Warranty Information