392986 GM Defrost Duct Vent

Review GM Original Defrost Duct Vent

The GM Part Number 392986 is a defrost duct vent designed for select 1966 and 1967 GM vehicle models. This essential component is responsible for ensuring adequate defrosting and demisting of the windshield during cold weather conditions.

The defrost duct vent is a meticulously engineered piece that fits seamlessly into the heating and ventilation system of the vehicle. It is constructed from high-quality materials that ensure durability and reliability, even in the harshest of weather conditions.

The vent features an intricately designed defrost duct that directs warm air towards the windshield, allowing it to melt away ice and frost buildup. The vent also includes adjustable louvers that allow the driver to control the direction of the airflow, enabling them to direct warm air towards the windshield or defrost the rear window as needed.

This GM defrost duct vent is easy to install, requiring no modification to the vehicle's original heating and ventilation system. It is designed to fit securely in place, ensuring a snug and leak-free installation. The vent also comes with all necessary hardware for installation, making it a convenient and hassle-free solution for maintaining optimal vehicle performance during the winter months.

In summary, the GM Part Number 392986 is an essential component for maintaining optimal visibility and comfort in select 1966 and 1967 GM vehicle models during cold weather conditions. Its high-quality construction, adjustable louvers, and easy installation make it a valuable addition to any vehicle's heating and ventilation system.

Buying a GM part number 392986, which is a defrost duct vent for 1966 and 1967 Chevrolet and GMC vehicles, can have several pros and cons for the vehicle owner. Here are some potential considerations:

1. Improved Defrosting: A faulty or damaged defrost duct vent can hinder the defrosting system of the vehicle, making it difficult to remove frost or fog from the windshield. Replacing the part with a new one can improve the defrosting performance, ensuring a clearer and safer view for the driver.

2. Enhanced Comfort: In cold weather conditions, the defrosting system is essential to maintain a comfortable driving environment, especially for the windshield area. A new defrost duct vent can help ensure proper airflow and heating to the windshield, making the vehicle more comfortable to drive in winter.

3. Long-Term Savings: A faulty defrost duct vent can lead to additional repair costs if left unattended, such as heater core damage or windshield replacement due to poor visibility. Replacing the part with a new one can save money in the long run by preventing further damage.

1. Cost: Replacing a defrost duct vent can be an additional expense for vehicle owners, especially if the part is not readily available or if the labor costs are high. The cost of the part itself can vary based on the supplier, and installation fees can add to the overall expense.

2. Availability: Finding a new defrost duct vent for older vehicles, such as 1966 and 1967 Chevrolet and GMC models, can be challenging since these parts are no longer in production. Vehicle owners may have to search for aftermarket options or rebuild kits, which can add to the overall cost and uncertainty.

3. Installation Complexity: Installing a new defrost duct vent can be a complex process, depending on the vehicle's make and model. The installation may require specialized tools and knowledge, which can add to the overall time and cost of the repair.

In conclusion, buying a new defrost duct vent for a 1966 or 1967 Chevrolet or GMC vehicle can provide several benefits, such as improved defrosting performance, enhanced comfort, and long-term savings. However, it can also come with potential drawbacks, including cost, availability, and installation complexity. Vehicle owners should weigh these factors carefully and consider their options before deciding to replace the part. If the defrosting performance is severely impacted or causing safety concerns, it may be worth the investment to replace the part with a new or rebuilt one. Alternatively, vehicle owners can explore other solutions, such as using a portable heater or investing in a windshield cover, to mitigate the impact of a faulty defrost duct vent. Ultimately, the decision to replace the part depends on the individual's budget, priorities, and driving conditions.

Details:

Part# 392986. This is a nicely restored 1966 and 1967 original Gm Oldsmobile defrost duct vent. Vent was cleaned front and back lightly recorded in satin black. This would be correct for f-85, cutlass, supreme, 442, w-30, and vista cruiser model's.

All plastic is in nice condition with no cracks or breaks.

specifications aircondiheat:

• for years: 1966-67
• brand: Gm
• mpn: 392986
• part type: Duct Vent
• vintage part: Yes

general aircondiheat:

• category: Auto Parts > Car Truck Accessories > Air Conditioning Heating

payments aircondiheat:

• wallet: paypal
• credit card: diners-club
• other

seller aircondiheat:

• # reviews: 640
• city: harleysville, pennsylvania
• rating: 99.6%

returns aircondiheat:

• paid by: seller
• time: 30 days
• policy: returns accepted

shipping aircondiheat:

• service: ups ground saver
• carrier: ups
• class: economy
• type: fixed
• transit: 5-11 days

offer aircondiheat:

• sold #: 6
• started: april 16, 2026
• best offers: true
• options: ship-to-home
• availability: in stock
• price: $65.00
• item condition: Used
• in stock #: 1