Genuine Mopar 3837997 Alternator Terminal Heat Sink (NOS)
This genuine Mopar 3837997 Alternator Terminal Heat Sink is a specialized electrical component designed to dissipate heat from the alternator output terminal, preventing heat-related terminal failure and ensuring reliable charging performance. Proudly Made in the USA, this New Old Stock (NOS) part is the factory-correct solution for Chrysler, Dodge, and Plymouth vehicles equipped with high-output alternators between 1972 and 1985. Maintaining original cooling components like this heat sink is critical for protecting the integrity of your vintage electrical system and the longevity of your alternator in classic muscle cars and full-size models.
Key Features:
- Brand: Mopar
- Part Number: 3837997
- Interchange: Terminal Cooling Plate
- Position: Alternator Rear Housing
- Engine Fitment: High-Output Alternator Systems
- Origin: Made in USA
- Condition: NOS (New Old Stock)
Verified Vehicle Fitment:
| Make |
Model |
Year |
Notes |
| Dodge |
Charger, Challenger, Dart, Coronet, Aspen |
1972-1985 |
High-output alternator applications |
| Plymouth |
Barracuda, Road Runner, Satellite, Valiant, Volare |
1972-1985 |
High-output alternator applications |
| Chrysler |
New Yorker, Newport, Town & Country |
1972-1985 |
High-output alternator applications |
Fits Years:
1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985
Actual Item Photos: Please look over the pictures carefully, as they depict the exact item you will receive. We utilize high-resolution photos of our current physical inventory rather than generic stock images so you can verify the specific condition, markings, and authenticity of this vintage part prior to purchase.
A Note on Fitment Accuracy: We manually research and cross-reference our fitment data using vintage manufacturer catalogs. While we strive for 100% accuracy, these decades-old resources—and the humans reading them—can occasionally contain errors. Additionally, these parts may fit other vehicles and years not explicitly listed in our data. To ensure a seamless restoration, we kindly ask that you perform your own due diligence and verify that this specific part number is correct for your application prior to purchase.
Unbeatable Prices & Expectations
As with all vintage New Old Stock (NOS) parts, this item may show "shelf wear" such as light surface oxidation, dust, or minor finish imperfections from decades of storage in original packaging. These characteristics are typical of authentic vintage components and do not affect the functionality of the part. Our pricing reflects the rarity and historical value of these original American-made treasures.
