Home » VW Passat B5, B6 Golf MK5 MK6 Engine Coolant Thermostat 87C

VW Passat B5, B6 Golf MK5 MK6 Engine Coolant Thermostat 87C

SKU: 1005005209527093-1PCS
Color
€17,82
-37% €28,51 €17,82

Engineered as a precise, durable replacement for VW and Audi cooling systems, this 87°C Engine Coolant Thermostat from Tree of Life is designed to restore reliable temperature control for VW Passat B5/B6 and Golf MK5/MK6 setups, along with a broad range of compatible models. Its solid metal construction delivers long-lasting performance, helping your engine warm up quickly in cold starts, maintain a steady operating temperature, and reduce wear from overheating or overcooling. With the right thermostat, you gain consistent heater performance, smoother idle, and improved overall engine efficiency.

This thermostat features extensive interchangeability to fit a variety of models, including Beetle, Golf, Jetta, and Audi TT variants from the late 1990s to the mid-2000s. Key interchange parts and OEM references ensure you can match the exact fit for your vehicle: Interchange Part Numbers 03G121113, 050121113C, 06A 121 121C, 050 121 113 C; OEM Nos: 03G121113, 050121113H, 050121113C, 050121113J. The unit is 100% brand new, crafted from metal, and comes in standard packaging. Its compact dimensions (~47 mm height, ~54 mm width) and light weight (~75 g) make it a straightforward swap that fits within the existing thermostat housing design.

For bulk orders or specialized needs, customization is available — working temperature can be adjusted and orders exceeding 100 units may qualify for tailored terms.

All electronic and mechanical equipment, devices and machines sold by InterCyprus to EU countries are CE certified and carry a two year warranty.

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Benefits & Tips

  • Precise temperature control: The 87°C activation point ensures the engine reaches and maintains optimal operating temperature, improving efficiency and reducing wear over time.
  • Wide compatibility: Designed as a reliable replacement for a broad range of VW and Audi models, making it a versatile choice for single vehicles or fleets.
  • Practical maintenance guidance: When swapping, consider flushing the cooling system to remove old coolant and contaminants, then replace with the appropriate coolant to maximize thermostat performance.

Product Specifications

  • Brand Name: Tree of Life
  • Country/Region of Manufacture: CN
  • Interchange Part Number: 03G121113, 050121113C, 06A 121 121C, 050 121 113 C
  • OEM No.: 03G121113, 050121113H, 050121113C, 050121113J
  • Item Height: 47 mm
  • Item Width: 54 mm
  • Item Length: Not specified (temperature rating listed separately)
  • Item Weight: 75 g
  • Temperature Operated: 87°C
  • Material: Metal
  • Color Code: Same as photo
  • Warranty: 1 Year
  • Manufacturer Part Number: 03G121113, 050121113H, 050121113C, 050121113J
  • Origin: Mainland China
  • Special Features: Thermostat
  • Includes: 1x Engine Coolant Thermostat
  • Fits: 1998-2006 VW Beetle (various trims), 1999-2006 VW Golf (GL/GLS/GTI), 2000-2005 VW Jetta, 2001-2006 Audi TT (Base/Quattro/Alms/MK variants) and other listed VW/Audi models

Package includes:

  • 1x Engine Coolant Thermostat

Warnings/Reminders

  • Verify vehicle compatibility using the interchange and OEM numbers before purchase.
  • Ensure the engine is cool before removing any cooling system components to avoid scalding.
  • Follow proper service procedures and torque specifications when installing the thermostat to ensure a proper seal and function.