Details

• Brand:

  

• SKU:

  21619-ET16B

• Other Names:

  Tube Assembly-Oil Cooler

• Description:

  Noticing irregular engine temperatures or reduced heater performance? Maintain proper coolant flow control with the Genuine Nissan Thermo Valve (Part #21619-ET16B), engineered for precise regulation of coolant routing and reliable thermal management.

  Thermo Valve (21619-ET16B) – OEM Replacement Part for Nissan

  This Genuine Nissan thermo valve regulates the flow of coolant within the engine’s thermal system to ensure stable operating temperature and optimal heater performance. Designed to Nissan’s exact factory standards, it opens and closes at calibrated temperature points, helping your Sentra’s engine warm up efficiently and preventing overheating during high-demand conditions. Its robust construction and OEM precision guarantee long-lasting performance and a perfect fit.

  Specifications

  Part Type: Thermo Valve (Coolant Control Valve)
  Position: Engine cooling system – coolant bypass or heater circuit
  Material: High-temperature polymer and corrosion-resistant metal body
  Function: Controls and diverts coolant flow based on temperature for proper engine regulation
  Includes: One (1) thermo valve

  Compatible Nissan Models

  2006 – 2012 Nissan Sentra (B16UUS)

  Fitment may vary slightly depending on engine configuration. To confirm compatibility for your vehicle, click here

  and enter your VIN using the “Search by VIN #” feature before ordering.

  Key Features

  • Genuine Nissan OEM valve ensures factory-calibrated coolant regulation

  • Helps maintain consistent engine and cabin heating temperatures

  • Corrosion-resistant materials withstand long-term coolant exposure

  • Designed for leak-free performance and precise flow control

  Failing to Replace a Faulty Thermo Valve Can Lead To

  • Overheating: Improper coolant flow restricts temperature balance

  • Poor Cabin Heat: Engine may not reach optimal temperature during cold operation

  • Coolant Circulation Issues: Trapped air or blocked flow affects cooling efficiency

  • Reduced Engine Life: Consistent overheating can cause gasket or head damage

  Related Components to Inspect or Replace

  • Thermostat Assembly: Regulates primary coolant temperature control

  • Heater Core Hoses: Check for cracks or blockage affecting cabin heat

  • Radiator Cap: Ensures proper pressure and coolant containment

  • Coolant Temperature Sensor: Sends feedback to ECM for fan operation and temperature monitoring

  Order with Confidence

  Order the Genuine Nissan Thermo Valve (21619-ET16B) to restore reliable coolant control and maintain proper engine temperature regulation. For verified OEM quality and fitment backed by Nissan standards, visit parts.chapmannissan.com

  .

  Restore Your Nissan with Genuine Accessories

  Protect and enhance your vehicle with factory-engineered Nissan accessories like splash guards, floor mats, and cargo organizers—all built for a precise fit and durable performance.

  Why Buy OEM Nissan Parts from Chapman Nissan

  Every OEM part we sell is sourced directly from Nissan, built to exact factory specifications for superior fit and function. Aftermarket valves may fail to open or close at correct temperatures, risking coolant imbalance or overheating.

  Fast, secure shipping from a certified Nissan dealer
  VIN verification available to ensure correct fitment
  Trusted by Nissan owners and professional technicians

  Cooling System FAQ

  Q: What does the thermo valve do?
  A: It regulates coolant routing between the engine and heater circuit, ensuring stable temperature control and proper cabin heating.

  Q: How do I know if it’s failing?
  A: Look for fluctuating temperature gauge readings, poor heater output, or signs of coolant flow restriction.

  Q: Should I replace coolant when changing the thermo valve?
  A: Yes. Always inspect coolant condition and top off or replace with Nissan-approved Long Life Antifreeze/Coolant after service.

• Condition: New
• Replaces:

  21200en00b, 21619et10b

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