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- Radiator Cooling Fan
Product Description


MTE-THOMSON 3731 Engine Cooling Fan Switch MTE-THOMSON 3731 Bulbo Motoventilador
Activating the fan is essential in traffic, and the part responsible for this is the MTE-THOMSON engine coolant temperature switch. Located in the radiator, it turns the fan on when the engine exceeds the ideal functioning temperature, thus preventing its overheating. This is an essential part of the cooling system that is manufactured with the best raw materials, and its operation is thoroughly inspected. Each of its products is tested and approved under rigorous quality control conducted before, during, and after the production process.
Terminal Quantity | 1 |
Thread Diameter | 3/8" X 18 NPTF |
Wrench Size | 13/16 IN |
Use Type | Radiator Fan |
Switch Off Temperature | 102 CE |
Switch Off Temperature | 215.6 FA |
Switch On Temperature | 112 CE |
Switch On Temperature | 233.6 FA |
PartNumber | 3731 |
Application Summary
- 1982-1988 Buick Century
- 1985-1988 Buick Electra
- 1985-1988 Buick LeSabre
- 1988 Buick Reatta
- 1986-1988 Buick Riviera
- 1982-1986 Buick Skyhawk
- 1980-1988 Buick Skylark
- 1986-1987 Buick Somerset
- 1985 Buick Somerset Regal
- 1982-1986 Cadillac Cimarron
- 1985-1992 Cadillac DeVille
- 1985-1992 Cadillac Fleetwood
- 1990-1992 Cadillac Brougham
- 1983-1992 Chevrolet Camaro
- 1982-1985 Chevrolet Cavalier
- 1982-1989 Chevrolet Celebrity
- 1980-1983 Chevrolet Citation
- 1984-1985 Chevrolet Citation II
- 1980-1984 Chevrolet Corvette
- 1990 Chevrolet Lumina APV
- 1985-1988 Oldsmobile 98
- 1985-1987 Oldsmobile Calais
- 1988 Oldsmobile Cutlass Calais
- 1982-1988 Oldsmobile Cutlass Ciera
- 1987-1988 Oldsmobile Cutlass Cruiser
- 1986-1988 Oldsmobile Delta 88
- 1982-1986 Oldsmobile Firenza
- 1980-1984 Oldsmobile Omega
- 1990 Oldsmobile Silhouette
- 1986-1988 Oldsmobile Toronado
- 1982-1987 Pontiac 6000
- 1987-1988 Pontiac Bonneville
- 1984-1988 Pontiac Fiero
- 1982-1992 Pontiac Firebird
- 1985-1987 Pontiac Grand Am
- 1982-1983 Pontiac J2000
- 1984-1985 Pontiac J2000 Sunbird
- 1980-1984 Pontiac Phoenix
- 1986 Pontiac Sunbird
- 1990 Pontiac Trans Sport
Features and Benefits
- Helps keep the engine operating at the proper temperature and reduces the fuel consumption
- QUALITY: Corrosion-resistant brass housing, Brass terminals for excellent conductivity.
- Designed to meet or exceed OEM Specifications
- Switch On Temperature: 102°C / 216ºF
- Replacement for OE# 88961770, 14001889, 3040674, 155403, 154315, 3090289, 10010693

About MTE Thomson
The history of MTE-THOMSON begins under the name MTE, Metalúrgica Termo-Elétrica (Thermo-Electric Metallurgy), in 1957, coinciding with the birth of the automotive industry in Brazil. With plenty of dedication and courage, the company has earned its place as one of the main Brazilian suppliers of auto parts. In 1975, the joint venture with Thomson International Co. led to the production of thermostats. Since then, MTE-THOMSON has established itself as a specialist in products for engine temperature control. In 1990, MTE-THOMSON incorporated automotive ceramics in its technology, thus becoming the only manufacturer of PTC and NTC thermistors in Latin America. In 2001, it became the first manufacturer of oxygen sensors in Brazil. Today, after 200 million parts produced and offering more than 3,000 different items, MTE-THOMSON has one of the most complete temperature control and engine management product lines, supplying both OEM and aftermarket customers in more than 100 countries.
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