TOPRAN 109 344 Coolant Expansion Tank

Compatible with AUDI A4 B6 (8E2) , AUDI A4 B6 Avant (8E5) , AUDI A4 B7 (8EC) Show more info
This coolant expansion tank from TOPRAN is designed to regulate the pressure within your vehicle's cooling system. Ensure optimal engine temperature and prevent overheating with this reliable component.
12.18 EUR
inc. VAT 21%
In stock 10
Delivery 1 day (15.05.2026)
PN 109 344
Make TOPRAN

The TOPRAN 109 344 coolant expansion tank plays a crucial role in maintaining the efficiency and longevity of your engine's cooling system. It serves as a reservoir for excess coolant that expands when the engine heats up, preventing pressure build-up that could damage hoses or the radiator. This tank is engineered to withstand the high temperatures and pressures found within a vehicle's cooling circuit. By providing a stable environment for coolant expansion and contraction, it helps to ensure that your engine operates within its ideal temperature range, reducing the risk of costly overheating issues. Proper functioning of the expansion tank is vital for overall engine health. A leak or crack in the tank can lead to coolant loss, air entering the system, and subsequent overheating. Replacing a faulty expansion tank with a quality part like the TOPRAN 109 344 is a proactive step in maintaining your vehicle's performance and reliability.

  • Direct replacement for the original coolant expansion tank.
  • Helps maintain optimal engine operating temperature.
  • Manages coolant expansion and contraction due to temperature changes.
  • Prevents excessive pressure build-up in the cooling system.
  • Durable construction for long-lasting performance.
  • Ensures proper coolant level monitoring.
  • Designed to meet or exceed original equipment specifications.
Heating/Cooling
with coolant level switch connection
Forward/Reverse
with reverse gear
Additional article/Additional info 2
with sensor
Additional article/Additional info 2
without cap
Material
PP (Polypropylene)
  • AUDI
    • A4 B6 (8E2)
      • 2.5 TDI quattro (132kW/180PS)
      • 2.5 TDI (114kW/155PS)
      • 2.5 TDI (120kW/163PS)
    • A4 B6 Avant (8E5)
      • 2.5 TDI quattro (132kW/180PS)
      • 2.5 TDI (114kW/155PS)
      • 2.5 TDI (120kW/163PS)
    • A4 B7 (8EC)
      • 2.5 TDI (120kW/163PS)
    • A4 B7 Avant (8ED)
      • 2.5 TDI (120kW/163PS)
  • SEAT
    • EXEO (3R2)
      • 1.8 TSI (88kW/120PS)
      • 1.8 TSI (118kW/160PS)
      • 2.0 TFSI (155kW/211PS)
    • EXEO ST (3R5)
      • 1.8 TSI (88kW/120PS)
      • 1.8 TSI (118kW/160PS)
      • 2.0 TFSI (155kW/211PS)
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