fits model: Ss, Impala, Belair. make: Chevy.

( Brand: Gm ), ( Manufacturer Part Number: 3781066 ), ( Part Type: Heater Fitting ), ( Oe/oem Part Number: Chevrolet Nomad Parkwood Brookwood Convertible Bb ), ( Vintage Part: Yes )
The GM 3781066 heater bypass fitting is an essential component for Chevrolet Impala Belair models equipped with 348 or 409 engines, specifically for models with the VINs starting with 59, 60, 61, or 62. This heater bypass fitting is designed to bypass the heater core in the vehicle's cooling system, allowing the engine to reach optimal operating temperature more quickly, particularly in colder climates.
The GM 3781066 heater bypass fitting is a high-quality part, made from durable materials to withstand the rigors of regular use. It features a brass construction, ensuring both strength and corrosion resistance. The fitting includes a brass male threaded end and a rubber hose connection, allowing for easy installation and secure connection to the vehicle's cooling system.
This heater bypass fitting is designed to fit perfectly with the Chevrolet Impala Belair's cooling system, ensuring a reliable seal and preventing leaks. The fitting is easy to install, requiring only basic hand tools and a few minutes of your time. It is compatible with both 12-volt and 14-volt electrical systems, making it a versatile solution for a wide range of Chevrolet models.
In summary, the GM 3781066 heater bypass fitting is a crucial component for Chevrolet Impala Belair owners with 348 or 409 engines. Its brass construction ensures durability, while its easy installation and compatibility with various electrical systems make it a convenient and reliable solution for maintaining your vehicle's cooling system.
Pros of buying GM 3781066 heater bypass fittings for Chevy Impala Belair:1. Compatibility: These fittings are specifically designed for Chevy Impala Belair models with 348 or 409 engines, ensuring a perfect fit.
2. Quality: General Motors is a reputable brand known for producing high-quality automotive parts.
3. OEM Parts: These fittings are original equipment manufacturer (OEM) parts, which means they are built to the same specifications as the original parts that came with the vehicle.
4. Easy Installation: Replacing heater bypass fittings is a relatively straightforward process, making this a DIY-friendly option.
Cons of buying GM 3781066 heater bypass fittings for Chevy Impala Belair:1. Cost: OEM parts can be more expensive than aftermarket alternatives.
2. Availability: Depending on where you live, these fittings may not be readily available in local auto parts stores, requiring an online purchase.
Conclusion: If you are looking for a reliable, high-quality heater bypass fitting for your Chevy Impala Belair, the GM 3781066 is a great option. While the cost may be higher than some aftermarket alternatives, the peace of mind that comes with knowing you are using OEM parts can be worth the investment. Additionally, the straightforward installation process makes this a DIY-friendly option.
Recommendation: If you are in need of a heater bypass fitting for your Chevy Impala Belair, we recommend considering the GM 3781066 fittings. Ensure you purchase from a reputable source to guarantee the authenticity of the part.
The original part number was plastic but they changed it to metal - thus the second. Ship cost shown is for continental US 48 states. New old stock GM part# 3788372 that replaced 3781066 heater hose bypass fitting for 1959-62 Chevrolet passenger cars with 348 and 409 engines. This is the metal one.
Very hard to find NOS part. Most of those guys do not even own their parts, they are relying on the parts being shipped from some third party IF have them and you know condition until it arrives at your door.