DAYCO DT1225H Thermostat

Compatible with AUDI A4 B6 (8E2) , AUDI A6 C5 (4B2, 4B4) , AUDI A6 C5 Avant (4B5, 4B6) Show more info
Ensures your engine reaches and maintains optimal operating temperature for efficient performance and longevity.
55.73 EUR
inc. VAT 21%
In stock 2
Delivery 1 day (23.03.2026)
PN DT1225H
Make DAYCO
EAN 8021787241761

The DAYCO DT1225H thermostat is a critical component for regulating your vehicle's engine temperature. It opens and closes to control the flow of coolant, preventing the engine from overheating or running too cold. Proper engine temperature is essential for fuel efficiency, emissions control, and overall engine health. A malfunctioning thermostat can lead to increased wear on engine components and reduced performance. This DAYCO thermostat is designed for reliable operation and durability, ensuring consistent temperature regulation under various driving conditions. It is a direct fit replacement for your original equipment thermostat.

  • Regulates engine operating temperature
  • Prevents overheating and overcooling
  • Contributes to fuel efficiency
  • Helps reduce emissions
  • Ensures optimal engine performance
  • Durable construction for longevity
  • Direct fit replacement
Opening temperature
+100
  • AUDI
    • A4 B6 (8E2)
      • 1.8 T (110kW/150PS)
      • 2.0 (96kW/130PS)
      • 1.8 T quattro (110kW/150PS)
      • 1.8 T (120kW/163PS)
      • 1.8 T quattro (120kW/163PS)
      • 1.8 T (140kW/190PS)
      • 1.8 T quattro (140kW/190PS)
    • A6 C5 (4B2, 4B4)
      • 2.0 (96kW/130PS)
    • A6 C5 Avant (4B5, 4B6)
      • 2.0 (96kW/130PS)
    • A4 B6 Avant (8E5)
      • 2.0 (96kW/130PS)
      • 1.8 T (110kW/150PS)
      • 1.8 T quattro (110kW/150PS)
      • 1.8 T (120kW/163PS)
      • 1.8 T quattro (120kW/163PS)
      • 1.8 T (140kW/190PS)
      • 1.8 T quattro (140kW/190PS)
    • A4 B6 Kabriolets (8H7)
      • 1.8 T (120kW/163PS)
      • 1.8 T quattro (120kW/163PS)
      • 2.0 (96kW/130PS)
    • A4 B7 (8EC)
      • 1.8 T (120kW/163PS)
      • 1.8 T quattro (120kW/163PS)
      • 2.0 (96kW/130PS)
    • A4 B7 Avant (8ED)
      • 2.0 (96kW/130PS)
      • 1.8 T (120kW/163PS)
      • 1.8 T quattro (120kW/163PS)
    • A4 B7 Kabriolets (8HE)
      • 1.8 T (120kW/163PS)
  • VW
    • PASSAT B5.5 (3B3)
      • 2.0 (96kW/130PS)
    • PASSAT B5.5 Variant (3B6)
      • 2.0 (96kW/130PS)
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