Product Description
Genuine Delco 3040674 Coolant Temperature Switch (NOS)
This New Old Stock (NOS) Delco 3040674 Coolant Temperature Switch is a genuine vintage replacement part, proudly made in the USA. Designed to monitor engine coolant temperature, this switch is crucial for various engine management functions, including activating cooling fans or providing gauge readings. It is a direct fit for a wide range of 1982-1988 General Motors passenger cars, including models such as the Buick Century, Electra, LeSabre, Regal, Riviera, Skyhawk, and Skylark; Cadillac Cimarron, DeVille, Eldorado, Fleetwood, and Seville; Chevrolet Camaro, Caprice, Cavalier, Celebrity, Corvette, Impala, and Monte Carlo; Oldsmobile 98, Cutlass Ciera, Cutlass Supreme, Delta 88, Firenza, and Toronado; and Pontiac 6000, Bonneville, Fiero, Firebird, Grand Prix, Parisienne, and Sunbird.
Key Features:
- Brand: Delco
- Part Number: 3040674
- OEM Number: 3040674
- Interchange: AC Delco 15-4229
- Position: Engine Coolant Temperature Sensor/Switch
- Origin: USA
- Condition: NOS (New Old Stock)
Fitment:
| Make | Model | Year | Engine | Notes |
|---|---|---|---|---|
| Buick | Century | 1982-1988 | 2.5L, 2.8L, 3.8L, 4.3L | |
| Buick | Electra | 1985-1987 | 3.8L, 4.3L | |
| Buick | LeSabre | 1985-1987 | 3.8L, 4.3L | |
| Buick | Regal | 1982-1987 | Various | |
| Buick | Riviera | 1982-1985 | Various | |
| Buick | Skyhawk | 1982-1988 | 1.8L, 2.0L | |
| Buick | Skylark | 1982-1985 | 2.5L, 2.8L | |
| Cadillac | Cimarron | 1982-1988 | 1.8L, 2.0L, 2.8L | |
| Cadillac | DeVille | 1985-1988 | 4.1L, 4.5L | |
| Cadillac | Eldorado | 1982-1985 | Various | |
| Cadillac | Fleetwood | 1985-1988 | 4.1L, 4.5L | |
| Cadillac | Seville | 1982-1985 | Various | |
| Chevrolet | Camaro | 1982-1988 | Various | |
| Chevrolet | Caprice | 1985-1988 | 4.3L, 5.0L | |
| Chevrolet | Cavalier | 1982-1988 | Various | |
| Chevrolet | Celebrity | 1982-1988 | Various | |
| Chevrolet | Corvette | 1982-1988 | 5.7L | |
| Chevrolet | Impala | 1985 | 4.3L, 5.0L | |
| Chevrolet | Monte Carlo | 1982-1988 | Various | |
| Oldsmobile | 98 | 1985-1987 | 3.8L, 4.3L | |
| Oldsmobile | Cutlass Ciera | 1982-1988 | Various | |
| Oldsmobile | Cutlass Supreme | 1982-1988 | Various | |
| Oldsmobile | Delta 88 | 1985-1987 | 3.8L, 4.3L | |
| Oldsmobile | Firenza | 1982-1988 | 1.8L, 2.0L, 2.8L | |
| Oldsmobile | Toronado | 1982-1985 | Various | |
| Pontiac | 6000 | 1982-1988 | Various | |
| Pontiac | Bonneville | 1985-1986 | 3.8L, 4.3L | |
| Pontiac | Fiero | 1984-1988 | 2.5L, 2.8L | |
| Pontiac | Firebird | 1982-1988 | Various | |
| Pontiac | Grand Prix | 1982-1987 | Various | |
| Pontiac | Parisienne | 1985-1986 | 4.3L, 5.0L | |
| Pontiac | Sunbird | 1982-1988 | 1.8L, 2.0L |
Fits Years:
1982 1983 1984 1985 1986 1987 1988
Note on Stock Photos: Due to our inventory of multiple identical units for this specific part number, we utilize representative stock photos for this listing. You will receive a component that strictly meets all listed specifications and fitment requirements. Please be aware that because these are vintage parts, minor cosmetic variations—such as surface finish, color, or production markings—may exist between different manufacturing runs. These slight aesthetic differences are a result of historical production processes and do not impact the part's integrity, performance, or authenticity.
A Note on Fitment Accuracy: We manually research our fitment data using vintage manufacturer catalogs to provide you with the most accurate information possible. However, because we are human and these decades-old resources can occasionally contain errors, we cannot guarantee 100% accuracy. We strongly encourage you to perform your own due diligence and verify this part number for your specific application before purchasing. Please note that this part may also fit other vehicles or years not explicitly listed in our research.
Unbeatable Prices & Expectations
While many of our vintage parts were manufactured decades ago, they remain unused and high-quality. Some original boxes may show signs of shelf-wear, such as dust, tape, or surface distress from years of storage. Rest assured, the components inside have been inspected to ensure they are complete and ready to help you finish your project without breaking the bank.
