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CALORSTAT BY VERNET CALORSTAT by Vernet WS2521 Coolant Temperature Sensor WS2521

CALORSTAT by Vernet WS2521 Coolant Temperature Sensor

Compatible with AUDI 80 B1 Sedans (80, 82) , AUDI 80 B2 Sedans (811, 813, 814, 819, 853) , AUDI 80 B3 Sedans (893, 894, 8A2) Show more info
Ensures accurate engine coolant temperature readings for optimal performance and protection. Directly replaces the original sensor.
4.04 EUR
inc. VAT 21%
In stock 3
Delivery 1 day (18.05.2026)
PN WS2521
Make CALORSTAT BY VERNET
EAN 3531650011452

The CALORSTAT by Vernet WS2521 coolant temperature sensor is designed to provide precise monitoring of your engine's coolant temperature. This critical component plays a vital role in the engine control unit's (ECU) ability to manage fuel injection, ignition timing, and cooling fan operation, all of which are essential for maintaining optimal engine performance and preventing overheating. Crafted with high-quality materials and engineered to meet stringent OEM specifications, this sensor offers reliable and consistent performance. Its direct-fit design ensures a straightforward installation process, replacing your old or faulty sensor with minimal hassle. By accurately reporting coolant temperature, the WS2521 helps your vehicle's systems operate efficiently, contributing to better fuel economy and reduced emissions. Trust CALORSTAT by Vernet for dependable engine management components. The WS2521 is built to withstand the demanding conditions within the engine bay, providing long-lasting service and peace of mind.

  • Accurately measures engine coolant temperature
  • Essential for optimal engine performance and cooling
  • Direct-fit replacement for OE sensor
  • Helps prevent engine overheating
  • Supports efficient fuel injection and ignition timing
  • Durable construction for long service life
  • Manufactured by CALORSTAT by Vernet
Thread size
M10x1.0
  • AUDI
    • 80 B1 Sedans (80, 82)
      • 1.3 (40kW/55PS)
      • 1.5 (55kW/75PS)
      • 1.5 (63kW/85PS)
      • 1.6 (55kW/75PS)
      • 1.3 (44kW/60PS)
      • 1.6 (63kW/85PS)
      • 1.6 GT (74kW/100PS)
      • 1.6 GTE (81kW/110PS)
    • 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)
      • 1.8 CC quattro (85Q) (66kW/90PS)
      • 1.8 GTE quattro (85Q) (82kW/112PS)
      • 2.0 quattro (85Q) (85kW/115PS)
      • 2.2 quattro (85Q) (100kW/136PS)
      • 1.8 GTE quattro (85Q) (81kW/110PS)
      • 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)
      • 1.8 S quattro (65kW/88PS)
      • 1.8 S quattro (66kW/90PS)
      • 1.8 quattro (83kW/113PS)
      • 2.0 E quattro (83kW/113PS)
      • 2.0 E (82kW/112PS)
      • 1.8 E quattro (82kW/112PS)
      • 1.4 (48kW/65PS)
      • 1.6 (75kW/102PS)
    • 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)
      • 2.0 D (51kW/70PS)
      • 2.0 D Turbo (64kW/87PS)
      • 2.0 D Turbo (74kW/100PS)
      • 2.5 TDI (88kW/120PS)
      • 1.8 quattro (65kW/88PS)
      • 1.8 Cat quattro (66kW/90PS)
      • 2.2 quattro (101kW/137PS)
      • 2.2 E Turbo quattro (121kW/165PS)
      • 1.8 (55kW/75PS)
      • 2.4 D (60kW/82PS)
      • 2.2 E quattro (88kW/120PS)
      • 1.8 (66kW/90PS)
      • 1.8 quattro (66kW/90PS)
      • 2.0 (85kW/115PS)
      • 2.2 Cat quattro (101kW/137PS)
      • 2.2 Cat (101kW/137PS)
      • 2.2 (79kW/107PS)
    • 200 C3 Sedans (447, 448)
      • 2.2 Turbo (121kW/165PS)
      • 2.2 Turbo quattro (121kW/165PS)
      • 2.2 20V Turbo quattro (162kW/220PS)
      • 2.2 Turbo quattro (147kW/200PS)
      • 2.2 Turbo (140kW/190PS)
      • 2.2 Turbo (147kW/200PS)
    • 100 C4 Sedans (4A2)
      • 2.4 D (60kW/82PS)
    • 100 C3 Avant (445, 446)
      • 1.8 (55kW/75PS)
      • 1.8 (65kW/88PS)
      • 1.8 (66kW/90PS)
      • 2.0 (83kW/113PS)
      • 2.0 E Cat (85kW/115PS)
      • 2.1 (100kW/136PS)
      • 2.2 (85kW/115PS)
      • 2.2 (101kW/137PS)
      • 2.2 Turbo (121kW/165PS)
      • 2.0 TD (74kW/100PS)
      • 2.5 TDI (88kW/120PS)
      • 2.2 quattro (101kW/137PS)
      • 2.2 E quattro (88kW/120PS)
      • 2.4 D (60kW/82PS)
      • 1.9 (74kW/100PS)
      • 1.8 quattro (66kW/90PS)
      • 2.0 E (85kW/115PS)
      • 2.2 Cat (101kW/137PS)
      • 1.8 Cat (66kW/90PS)
    • 90 B2 (813, 814, 853)
      • 2.0 (85kW/115PS)
      • 2.2 (85kW/115PS)
      • 2.2 (100kW/136PS)
      • 2.2 E quattro (100kW/136PS)
      • 2.2 E quattro (88kW/120PS)
      • 2.0 (83kW/113PS)
    • 90 B3 (893, 894, 8A2)
      • 2.0 (85kW/115PS)
      • 2.3 E (100kW/136PS)
      • 2.3 E (98kW/133PS)
      • 2.3 E 20V (123kW/167PS)
      • 2.3 E quattro (100kW/136PS)
      • 2.3 E 20V quattro (125kW/170PS)
      • 2.3 E quattro (98kW/133PS)
      • 2.3 E 20V quattro (123kW/167PS)
      • 2.2 E (100kW/136PS)
      • 2.2 E quattro (100kW/136PS)
      • 2.3 E 20V (125kW/170PS)
      • 1.6 TD (59kW/80PS)
      • 2.0 20 V (118kW/160PS)
      • 2.0 20 V quattro (118kW/160PS)
    • 200 C3 Avant (447, 448)
      • 2.2 Turbo quattro (121kW/165PS)
      • 2.2 20V Turbo quattro (162kW/220PS)
      • 2.2 Turbo quattro (147kW/200PS)
      • 2.3 (100kW/136PS)
    • COUPE B3 (89, 8B3)
      • 2.2 quattro (100kW/136PS)
  • VW
    • POLO II (86C, 80)
      • 1.0 (29kW/40PS)
      • 1.1 (37kW/50PS)
      • 1.3 (44kW/60PS)
      • 1.3 D (33kW/45PS)
      • 1.3 Cat (40kW/55PS)
      • 1.0 Cat (33kW/45PS)
      • 1.3 Cat (55kW/75PS)
      • 1.3 (40kW/55PS)
      • 1.0 (33kW/45PS)
      • 1.3 (55kW/75PS)
    • GOLF II (19E, 1G1)
      • 1.3 (40kW/55PS)
      • 1.6 (55kW/75PS)
      • 1.8 GTI G60 Syncro (118kW/160PS)
      • 1.8 (62kW/84PS)
      • 1.8 Syncro (66kW/90PS)
      • 1.8 i Cat (66kW/90PS)
      • 1.8 Syncro (72kW/98PS)
      • 1.8 GTI (82kW/112PS)
      • 1.8 GTI 16V (102kW/139PS)
      • 1.6 D (40kW/54PS)
      • 1.6 TD (51kW/70PS)
      • 1.6 TD (59kW/80PS)
      • 1.6 TD (44kW/60PS)
      • 1.8 GTI (79kW/107PS)
      • 1.8 (66kW/90PS)
      • 1.0 (33kW/45PS)
      • 1.0 (37kW/50PS)
    • JETTA II (19E, 1G2, 165)
      • 1.3 (40kW/55PS)
      • 1.6 (55kW/75PS)
      • 1.8 (62kW/84PS)
      • 1.8 Cat (66kW/90PS)
      • 1.8 (82kW/112PS)
      • 1.8 16V (102kW/140PS)
      • 1.6 D (40kW/54PS)
      • 1.6 TD (51kW/70PS)
      • 1.6 TD (59kW/80PS)
      • 1.6 TD (44kW/60PS)
      • 1.8 (79kW/107PS)
      • 1.8 (66kW/90PS)
    • PASSAT B2 (32B)
      • 1.3 (44kW/60PS)
      • 1.6 (55kW/75PS)
      • 1.8 (66kW/90PS)
      • 1.9 (85kW/115PS)
      • 2.0 (85kW/115PS)
      • 2.2 (85kW/115PS)
      • 1.6 D (40kW/54PS)
      • 1.6 TD (51kW/70PS)
      • 1.6 (55kW/75PS)
      • 1.3 (44kW/60PS)
    • PASSAT B3/B4 (3A2, 35I)
      • 1.6 (53kW/72PS)
      • 2.0 16V (100kW/136PS)
      • 2.0 16V (110kW/150PS)
      • 1.8 16V (100kW/136PS)
    • SANTANA (32B)
      • 1.6 (55kW/75PS)
      • 1.8 (66kW/90PS)
      • 1.9 (85kW/115PS)
      • 2.0 (85kW/115PS)
      • 1.6 TD (51kW/70PS)
      • 1.6 (55kW/75PS)
    • SCIROCCO (53)
      • 1.1 (37kW/50PS)
      • 1.3 (44kW/60PS)
      • 1.5 (51kW/70PS)
    • SCIROCCO (53B)
      • 1.3 (44kW/60PS)
      • 1.6 (55kW/75PS)
      • 1.6 (63kW/85PS)
      • 1.6 (53kW/72PS)
      • 1.8 (66kW/90PS)
      • 1.8 (70kW/95PS)
      • 1.8 (82kW/112PS)
      • 1.8 16V (102kW/139PS)
      • 1.8 16V (95kW/129PS)
    • CORRADO (53I)
      • 2.0 i 16V (100kW/136PS)
      • 1.8 16V (100kW/136PS)
    • LT 28-35 I Autobuss (281-363)
      • 2.4 D (55kW/75PS)
      • 2.4 TD (68kW/92PS)
      • 2.4 TD (75kW/102PS)
      • 2.4 D (51kW/70PS)
      • 2.4 TD (70kW/95PS)
      • 2.4 i (69kW/94PS)
    • PASSAT B3/B4 Variant (3A5, 35I)
      • 1.6 (53kW/72PS)
      • 2.0 16V (100kW/136PS)
      • 2.0 16V (110kW/150PS)
      • 1.8 16V (100kW/136PS)
    • PASSAT B2 Variant (33B)
      • 1.3 (44kW/60PS)
      • 1.6 (55kW/75PS)
      • 1.8 Syncro (66kW/90PS)
      • 1.8 (66kW/90PS)
      • 1.9 (85kW/115PS)
      • 2.0 (85kW/115PS)
      • 2.2 (85kW/115PS)
      • 1.6 D (40kW/54PS)
      • 1.6 TD (51kW/70PS)
      • 2.0 Syncro (85kW/116PS)
      • 1.6 (55kW/75PS)
      • 1.3 (44kW/60PS)
    • GOLF I Cabriolet (155)
      • 1.6 (55kW/75PS)
      • 1.8 (66kW/90PS)
      • 1.8 (70kW/95PS)
      • 1.8 (82kW/112PS)
      • 1.8 (72kW/98PS)
    • POLO Coupe (86C, 80)
      • 1.0 (29kW/40PS)
      • 1.1 (37kW/50PS)
      • 1.3 (44kW/60PS)
      • 1.3 G40 (85kW/115PS)
      • 1.3 D (33kW/45PS)
      • 1.0 Cat (33kW/45PS)
      • 1.3 Cat (40kW/55PS)
      • 1.3 Cat (55kW/75PS)
      • 1.3 (40kW/55PS)
      • 1.0 (33kW/45PS)
      • 1.3 (55kW/75PS)
      • 1.3 (57kW/78PS)
    • POLO CLASSIC (86C, 80)
      • 1.0 (29kW/40PS)
      • 1.0 (33kW/45PS)
      • 1.3 D (33kW/45PS)
      • 1.3 Cat (40kW/55PS)
      • 1.3 (40kW/55PS)
    • PASSAT B2 Sedans (32B)
      • 1.6 (55kW/75PS)
      • 2.2 (85kW/115PS)
      • 1.8 (66kW/90PS)
      • 1.6 TD (51kW/70PS)
    • LT 28-35 I Furgons (281-363)
      • 2.4 D (55kW/75PS)
      • 2.4 TD (68kW/92PS)
      • 2.4 TD (70kW/95PS)
      • 2.4 TD (75kW/102PS)
      • 2.4 D (51kW/69PS)
      • 2.4 i (69kW/94PS)
    • LT 28-35 I Platforma/Šasija (281-363)
      • 2.4 TD (68kW/92PS)
      • 2.4 D (51kW/69PS)
      • 2.4 D (55kW/75PS)
      • 2.4 TD (70kW/95PS)
      • 2.4 TD (75kW/102PS)
      • 2.4 i (69kW/94PS)
    • LT 40-55 I Furgons (291-512)
      • 2.4 TD (68kW/92PS)
      • 2.4 D (55kW/75PS)
      • 2.4 TD (75kW/102PS)
      • 2.4 i (69kW/94PS)
      • 2.4 D (51kW/69PS)
      • 2.4 TD (70kW/95PS)
      • 2.4 D 4WD (55kW/75PS)
      • 2.4 TD 4WD (75kW/102PS)
    • LT 40-55 I Platforma/Šasija (293-909)
      • 2.4 D (51kW/69PS)
      • 2.4 D (55kW/75PS)
      • 2.4 TD (70kW/95PS)
      • 2.4 TD (75kW/102PS)
      • 2.4 i (69kW/94PS)
  • VOLVO
    • 240 (P242, P244)
      • 2.4 Diesel (60kW/82PS)
      • 2.4 Diesel (58kW/79PS)
    • 240 Kombi (P245)
      • 2.4 Diesel (60kW/82PS)
    • 740 (744)
      • 2.4 Diesel (60kW/82PS)
    • 760 (704, 764)
      • 2.4 Turbo Diesel (80kW/109PS)
      • 2.4 Turbo Diesel (82kW/112PS)
      • 2.4 TD Interc. (85kW/115PS)
    • 740 Kombi (745)
      • 2.4 Diesel (60kW/82PS)
      • 2.4 Turbo-Diesel (80kW/109PS)
      • 2.4 TD Interc. (90kW/122PS)
    • 960 (964)
      • 2.4 TD Interc. (85kW/115PS)
    • 960 Kombi (965)
      • 2.4 TD Interc. (85kW/115PS)
    • 940 II (944)
      • 2.4 TD Interc. (90kW/122PS)
    • 940 II Universālis (945)
      • 2.4 TD Interc. (90kW/122PS)
    • 940 (944)
      • 2.4 TD Intercooler (90kW/122PS)
      • 2.4 Turbo Diesel (80kW/109PS)
      • 2.4 D (60kW/82PS)
    • 940 Kombi (945)
      • 2.4 Turbo Diesel (80kW/109PS)
      • 2.4 D (60kW/82PS)
      • 2.4 TD Intercooler (90kW/122PS)
    • 760 Kombi (704, 765)
      • 2.4 TD Interc. (765) (85kW/116PS)
      • 2.4 D (60kW/82PS)
  • SEAT
    • TERRA Furgons/Universālis (024A)
      • 1.3 D (33kW/45PS)
      • 1.4 D (35kW/48PS)
    • TERRA (24)
      • 1.3 D (33kW/45PS)
      • 1.4 D (35kW/48PS)
    • CORDOBA (6K1, 6K2)
      • 1.8 i 16V (95kW/129PS)
      • 2.0 i 16V (110kW/150PS)
    • IBIZA II (6K1)
      • 1.8 i 16V (95kW/129PS)
      • 2.0 i 16V (110kW/150PS)
  • PORSCHE
    • 924
      • 2.0 Turbo (130kW/177PS)
AUDI
027919501 049919501 0499195011 049919501A 175919501 SE021947000I
SEAT
WO049919501
VOLVO
1257216 3517501 35175017
VW
027919501 049919501 0499195011 049919501A 175919501 SE021947000I
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