TOPRAN 104 377 Radiator Fan Thermoswitch

Compatible with AUDI 80 B2 Sedans (811, 813, 814, 819, 853) , AUDI 80 B3 Sedans (893, 894, 8A2) , AUDI 100 C2 Sedans (431, 433, 434) Show more info
Ensures your radiator fan operates at the optimal temperature. Directly replaces the original part for a perfect fit.
3.76 EUR
inc. VAT 21%
In stock 44
Delivery 1 day (14.05.2026)
PN 104 377
Make TOPRAN

This TOPRAN radiator fan thermoswitch is designed to regulate the temperature of your vehicle's cooling system. It accurately monitors the coolant temperature and activates the radiator fan when necessary to prevent overheating. Crafted with durable materials, this component is built to withstand the demanding conditions of the engine bay. Its precise calibration ensures reliable performance and helps maintain your engine's optimal operating temperature, contributing to fuel efficiency and longevity. Installation is straightforward, as this part is engineered to match the specifications of the original equipment. Replacing a faulty thermoswitch is crucial for preventing potential engine damage caused by overheating.

  • Regulates radiator fan operation based on coolant temperature
  • Prevents engine overheating
  • Direct fit replacement for original equipment
  • Durable construction for long-lasting performance
  • Helps maintain optimal engine operating temperature
  • Ensures reliable cooling system function
Thread size
M 22 x 1,5
Number of pin contacts
2
Activation point [°C]
95
Cut-off temperature [°C]
90°
Plug connector housing shape
Angle
Wrench size
29
Additional article/Additional info 2
with sealing ring
Shell color
blue
  • AUDI
    • 80 B2 Sedans (811, 813, 814, 819, 853)
      • 1.3 (40kW/55PS)
      • 1.3 (44kW/60PS)
      • 1.6 (54kW/73PS)
      • 1.6 (55kW/75PS)
      • 1.6 (63kW/85PS)
      • 1.6 GLE (81kW/110PS)
      • 1.8 (65kW/88PS)
      • 1.8 (66kW/90PS)
      • 1.8 GTE (82kW/112PS)
      • 1.6 D (40kW/54PS)
      • 1.6 TD (51kW/70PS)
      • 1.9 CD-5S (85kW/115PS)
      • 1.8 GTE (81kW/110PS)
      • 2.0 (85kW/115PS)
      • 1.6 (55kW/75PS)
      • 1.3 (44kW/60PS)
    • 80 B3 Sedans (893, 894, 8A2)
      • 1.6 (55kW/75PS)
      • 1.8 (55kW/75PS)
      • 1.8 S (65kW/88PS)
      • 1.8 S (66kW/90PS)
      • 1.8 E (82kW/112PS)
      • 1.8 (83kW/113PS)
      • 2.0 E (83kW/113PS)
      • 1.6 D (40kW/54PS)
      • 1.6 TD (59kW/80PS)
      • 1.9 D (50kW/68PS)
      • 1.6 (51kW/70PS)
      • 2.0 E 16V (101kW/137PS)
      • 1.4 (48kW/65PS)
      • 1.6 (75kW/102PS)
      • 2.0 E (85kW/115PS)
    • 100 C2 Sedans (431, 433, 434)
      • 1.6 (63kW/85PS)
      • 1.9 (74kW/100PS)
      • 2.0 (85kW/115PS)
      • 2.1 (85kW/115PS)
      • 2.1 (100kW/136PS)
      • 2.0 D (51kW/70PS)
    • 100 C3 Sedans (443, 444)
      • 1.8 (65kW/88PS)
      • 1.8 Cat (66kW/90PS)
      • 1.9 (74kW/100PS)
      • 2.0 (83kW/113PS)
      • 2.0 Cat (85kW/115PS)
      • 2.1 (100kW/136PS)
      • 2.2 (85kW/115PS)
      • 2.2 (101kW/137PS)
      • 2.2 Turbo (121kW/165PS)
      • 2.3 E (100kW/136PS)
      • 2.0 D (51kW/70PS)
      • 2.0 D Turbo (64kW/87PS)
      • 2.0 D Turbo (74kW/100PS)
      • 2.5 TDI (88kW/120PS)
      • 1.8 (55kW/75PS)
      • 2.4 D (60kW/82PS)
      • 1.8 (66kW/90PS)
      • 2.0 (85kW/115PS)
      • 2.2 Cat (101kW/137PS)
      • 2.2 (79kW/107PS)
    • 80 B4 Sedans (8C2)
      • 1.9 TD (55kW/75PS)
      • 1.9 TDI (66kW/90PS)
      • 1.6 (52kW/71PS)
      • 1.6 E (74kW/101PS)
      • 2.0 (66kW/90PS)
      • 2.0 E (85kW/115PS)
      • 2.0 E 16V (103kW/140PS)
      • 2.3 E (98kW/133PS)
      • 2.6 (110kW/150PS)
      • 2.8 (128kW/174PS)
      • 2.0 E 16V (101kW/137PS)
    • 80 B4 Avant (8C5)
      • 2.0 (66kW/90PS)
      • 2.0 E (85kW/115PS)
      • 2.0 E 16V (103kW/140PS)
      • 2.3 E (98kW/133PS)
      • 2.6 (110kW/150PS)
      • 1.9 TDI (66kW/90PS)
      • 1.6 E (74kW/101PS)
      • 2.8 (128kW/174PS)
      • 1.9 TD (55kW/75PS)
    • A4 B5 (8D2)
      • 1.6 (74kW/100PS)
      • 1.8 (92kW/125PS)
      • 1.8 T (110kW/150PS)
      • 2.8 (128kW/174PS)
      • 1.9 TDI (66kW/90PS)
      • 1.8 quattro (92kW/125PS)
      • 1.8 T quattro (110kW/150PS)
      • 2.6 quattro (110kW/150PS)
      • 2.8 quattro (128kW/174PS)
      • 1.9 TDI (81kW/110PS)
      • 2.8 (142kW/193PS)
      • 2.8 quattro (142kW/193PS)
      • 1.9 TDI quattro (81kW/110PS)
      • 2.4 (121kW/165PS)
      • 2.4 quattro (121kW/165PS)
      • 2.5 TDI (110kW/150PS)
      • 2.5 TDI quattro (110kW/150PS)
      • 1.9 TDI (85kW/116PS)
      • 1.8 T quattro (132kW/180PS)
      • 1.8 T (132kW/180PS)
      • 1.9 TDI quattro (85kW/116PS)
      • 1.9 TDI (55kW/75PS)
      • 1.8 (85kW/115PS)
      • 1.6 (75kW/102PS)
      • 2.4 (120kW/163PS)
      • 2.4 quattro (120kW/163PS)
      • 2.6 (102kW/139PS)
      • 2.8 (140kW/190PS)
    • A4 B5 Avant (8D5)
      • 1.6 (74kW/100PS)
      • 1.8 (92kW/125PS)
      • 1.8 T (110kW/150PS)
      • 2.6 (110kW/150PS)
      • 1.9 TDI (66kW/90PS)
      • 1.9 TDI (81kW/110PS)
      • 1.8 quattro (92kW/125PS)
      • 1.8 T quattro (110kW/150PS)
      • 2.6 quattro (110kW/150PS)
      • 2.8 (142kW/193PS)
      • 2.8 quattro (142kW/193PS)
      • 1.9 TDI quattro (81kW/110PS)
      • 2.4 (121kW/165PS)
      • 2.4 quattro (121kW/165PS)
      • 2.5 TDI (110kW/150PS)
      • 2.5 TDI quattro (110kW/150PS)
      • 1.9 TDI (85kW/115PS)
      • 1.8 T quattro (132kW/180PS)
      • 1.8 T (132kW/180PS)
      • 1.9 TDI quattro (85kW/115PS)
      • 1.8 (85kW/115PS)
      • 1.6 (75kW/102PS)
      • 2.4 (120kW/163PS)
      • 2.4 quattro (120kW/163PS)
  • VW
    • PASSAT B5 (3B2)
      • 1.6 (74kW/101PS)
      • 1.8 (92kW/125PS)
      • 1.8 T (110kW/150PS)
      • 2.3 VR5 (110kW/150PS)
      • 2.8 V6 Syncro/4motion (142kW/193PS)
      • 1.9 TDI (66kW/90PS)
      • 1.9 TDI (81kW/110PS)
      • 2.8 V6 (142kW/193PS)
      • 1.8 Syncro/4motion (92kW/125PS)
      • 1.9 TDI Syncro/4motion (81kW/110PS)
      • 2.3 VR5 Syncro/4motion (110kW/150PS)
      • 1.9 TDI (85kW/115PS)
      • 2.5 TDI (110kW/150PS)
      • 2.5 TDI Syncro/4motion (110kW/150PS)
      • 1.9 TDI 4motion (85kW/115PS)
      • 2.0 (88kW/120PS)
      • 2.0 4motion (88kW/120PS)
      • 1.9 TDI (74kW/101PS)
      • 1.8 (85kW/115PS)
    • PASSAT B5 Variant (3B5)
      • 1.6 (74kW/101PS)
      • 1.8 (92kW/125PS)
      • 1.8 T (110kW/150PS)
      • 2.3 VR5 (110kW/150PS)
      • 2.8 V6 (142kW/193PS)
      • 1.9 TDI (66kW/90PS)
      • 1.9 TDI (81kW/110PS)
      • 2.8 V6 Syncro/4motion (142kW/193PS)
      • 1.8 Syncro/4motion (92kW/125PS)
      • 1.9 TDI Syncro/4motion (81kW/110PS)
      • 2.3 VR5 Syncro/4motion (110kW/150PS)
      • 1.9 TDI (85kW/115PS)
      • 2.5 TDI (110kW/150PS)
      • 2.5 TDI Syncro/4motion (110kW/150PS)
      • 1.9 TDI 4motion (85kW/115PS)
      • 1.9 TDI (74kW/101PS)
      • 2.0 (88kW/120PS)
      • 2.0 4motion (88kW/120PS)
      • 1.8 (85kW/115PS)
0 Updated