For 497-3990 4973990 THERMOSTAT Assembly CAT C7.1 Excavator Engine Parts

Product Specification

For 497-3990 4973990 THERMOSTAT Assembly CAT C7.1 Excavator Engine Parts

Specification

Description

This thermostat assembly, part number 497-3990 / 4973990, is specially designed for excavators equipped with the C7.1 engine. As a core control component of the engine cooling system, it automatically adjusts the valve opening according to the coolant temperature to control the coolant circulation path, ensuring the engine always operates within the optimal working temperature range and preventing performance loss and component damage caused by overheating or overcooling.

Advantage

Factory-grade Quality Matching: Manufactured in accordance with the same standards and processes as the original parts, with fully compatible dimensions and mounting holes for direct replacement without additional processing, ensuring perfect fitment.
Long-term Stable Temperature Control: Built with a high-precision temperature control valve core that responds sensitively and acts accurately with small temperature control errors. It maintains stable temperature control performance even after long-term use, avoiding abnormal fluctuations in water temperature caused by thermostat failure.
Durable and Robust Material: The housing is die-cast from high-strength aluminum alloy with excellent surface treatment, offering good corrosion resistance and impact resistance to adapt to the harsh working environment of excavators and extend service life.
Reliable Sealing Performance: The supporting sealing ring is made of high-quality material resistant to high and low temperatures and coolant corrosion, effectively preventing coolant leakage and ensuring the tightness and stable operation of the cooling system.

Performance

Precise Temperature Control: Automatically opens/closes the coolant circulation at the set temperature according to engine conditions, enabling fast warm-up when cold and efficient heat dissipation when hot, ensuring the engine runs stably in the optimal temperature range.
Efficient Heat Dissipation Adaptation: Cooperates with the C7.1 engine's cooling system to quickly respond to engine temperature changes, avoiding overheating and engine overheat protection shutdown during long-term high-load operations.
Low Failure Rate Design: The valve core moves smoothly without jamming, with a compact and reasonable structure, effectively reducing the risk of engine wear, increased fuel consumption, and reduced power caused by thermostat failure.
Strict Process Inspection: Each product undergoes rigorous sealing and temperature control performance tests before leaving the factory to ensure stable and reliable performance, meeting the use requirements of excavators for long-term high-intensity operations.

Packing & Delivery

PACKING: Neutral Packing, Customized Packing.
DELIVERY: By Sea, By Air, By Express (UPS,TNT, FEDEX, EMS, DHL)

FAQ

Q1: When will my goods be shipped?
A: Your goods will be dispatched within 24 hours after payment confirmation.

Q2: What is the lead time?
A: We maintain sufficient stock for immediate fulfillment.

Q3: What shipping methods do you offer?
A: We ship via sea, air, or express (DHL, FedEx, TNT, UPS, EMS).

Q4: What is the delivery time?
A: Stock items take 2 to 5 days; pre-order items take 7 to 15 days. Contact us for specifics.

Q5: How can I track my shipment?
A: We will provide you with the tracking number as soon as your order is shipped.

About us