GM 3747380 Nos Fender Louvers Set

( Brand: Gm ), ( Manufacturer Part Number: 3747380 ), ( Part Type: Fender ), ( Country Of Origin: United States )

Review GM Nos Chevy Fender Louvers Full Set fits IMPALA 1958

The **GM 3747380 NOS (New Old Stock) 1958-1959 Chevy Impala Fender Louvers Set** is a meticulously preserved, factory-direct replacement part that embodies the classic elegance and timeless engineering of one of General Motors most iconic mid-century models. These louvers, originally designed to enhance the Impala s aerodynamic efficiency while maintaining a sleek, streamlined appearance, are crafted from high-quality, corrosion-resistant steel and feature the signature **1958-59 Chevy Impala styling cues** including the iconic **three horizontal slats per panel** with crisp, sharp edges and a polished, chrome-plated finish on the inner surfaces. The set includes both the **driver s and passenger s side fender louvers**, ensuring a symmetrical, factory-matched look that restores authenticity to your vehicle s exterior. Perfectly aligned with the Impala s iconic **two-tone paint schemes** or solid colors, these louvers not only preserve the car s original aesthetic but also contribute to its legendary driving dynamics by reducing wind noise and improving airflow. Whether you re restoring a show-quality Impala to its former glory or maintaining a daily driver with period-correct authenticity, this NOS set is a must-have for enthusiasts seeking uncompromising quality and historical accuracy. The fact that these louvers are **new old stock** means they have been carefully preserved in their original packaging, free from rust, dents, or wear, ensuring they fit seamlessly with minimal modification. Ideal for collectors, restorers, and purists who demand nothing less than the finest original components, this set is a testament to GM s precision manufacturing of the era and a vital piece for any Impala aficionado s project.

### **Pros and Cons of Buying a GM 3747380 NOS (New Old Stock) 1958 Chevy Impala Fender Louvers Set**

1. **Authentic Fit and Finish** A NOS part ensures the fender louvers will match the original design and quality of a 1958 Chevy Impala, maintaining historical accuracy for restoration or classic car projects.

2. **High-Quality Materials** Original GM parts were built to last, often using durable metals and precise manufacturing standards that may exceed aftermarket alternatives.

3. **Rarity and Collectibility** NOS parts are highly sought after by enthusiasts, making this set a valuable addition to a collection or a prized component for a restored vehicle.

4. **No Wear or Damage** Since it s new old stock, the louvers are free from rust, dents, or wear, ensuring they will install cleanly without additional prep work.

5. **Proven Compatibility** GM s original parts were designed specifically for the 1958 Impala, reducing the risk of fitment issues that can occur with aftermarket replacements.

6. **Increased Resale Value** Using NOS parts in a restored classic car can enhance its value, especially in concours or show circles where authenticity is highly regarded.

7. **Avoiding Counterfeit Parts** NOS parts are genuine, eliminating the risk of purchasing fakes that may not meet original specifications.

1. **High Cost** NOS parts are significantly more expensive than aftermarket or reproduction alternatives, which can be a major financial barrier for budget-conscious buyers.

2. **Limited Availability** Finding NOS parts can be difficult, as they are often held by specialized collectors or dealers, potentially requiring extensive searching or bidding.

3. **Storage and Handling Risks** NOS parts are physical items that may require careful storage to prevent damage (e.g., rust, scratches) before installation, adding logistical challenges.

4. **Potential for Overpaying** Due to their rarity, some NOS parts are priced at premiums that may not reflect their actual value, especially if the market is saturated with demand.

5. **Time-Consuming Acquisition** Sourcing a NOS part may take weeks or months, depending on availability and the seller s location, delaying project timelines.

6. **No Warranty or Guarantee** Unlike new aftermarket parts, NOS items typically come with no manufacturer warranty, meaning the buyer assumes all risk of defects or fitment issues.

7. **Ethical Concerns** Some collectors or dealers may hoard NOS parts, artificially limiting supply and driving up prices, which can feel exploitative to serious restorers.

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Buying a **GM 3747380 NOS 1958 Chevy Impala fender louvers set** is a decision that hinges on your priorities as a car enthusiast. If **authenticity, long-term value, and historical integrity** are your top concerns and if you have the budget to accommodate the higher cost this is an excellent investment. The part will ensure a flawless restoration, boost the car s collectible appeal, and likely hold its value better than aftermarket alternatives.

However, if **cost efficiency, speed of acquisition, or practicality** are more important, an aftermarket or reproduction set may be a more practical choice. The trade-off involves sacrificing some originality for accessibility and affordability.

For **serious restorers, concours participants, or collectors**, the NOS option is worth the premium. For **casual enthusiasts or those on a tighter budget**, an aftermarket part that meets your standards may be a more reasonable path.

- You are restoring a show-quality 1958 Chevy Impala and prioritize originality.

- You have the financial means to invest in high-end parts without straining your budget.

- You are willing to spend extra time sourcing the part and are prepared for potential premium pricing.

- Budget constraints make the NOS part unaffordable.

- You need the part quickly and are willing to compromise slightly on authenticity for convenience.

- The aftermarket option is of high quality (e.g., from a reputable manufacturer like **Eggleston, Classic Parts, or Restomods**) and offers a warranty.

Ultimately, weigh the emotional and practical value of owning a piece of automotive history against the practical needs of your project. If the NOS part aligns with your vision for the car, it is a worthwhile purchase. Otherwise, a well-researched aftermarket replacement can achieve similar results without the same financial or logistical hurdles.

Details:

1958 Chevy Impala Right Fender Louvers Factory Part# 3747380 in original box with nuts these are for the passenger side NOS and very nice shape but also 70 years old Impossible to find shipping 12.00 52026.

part #: 3747380 prices

• $37.49-$229.95

specifications atvfendersgo:

• for models: Impala
• for makes: Chevy
• for years: 1958
• brand: Gm
• mpn: 3747380
• part type: Fender
• country of origin: United States

payments atvfendersgo:

• credit card: Visa
• wallet: Google-pay
• other

shipping atvfendersgo:

• transit: 2-7 Days
• service: USPS Ground Advantage
• type: Fixed
• cost: $12.89
• class: Standard
• carrier: USPS

general atvfendersgo:

• Body Frame > Body Parts, doors Fenders > Fenders
• condition: New

seller atvfendersgo:

• city: Shorewood, Illinois
• # reviews: 20344
• rating: 100.0%

returns atvfendersgo:

• policy: Returns Accepted
• paid by: Seller
• time: 30 Days

offer atvfendersgo:

• quantity: 1
• sold: 0
• started: May 20, 2026
• options: Ship-to-home
• best offers: True
• availability: In Stock

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• Gm 3747379 Nos 1958 58 Chevy Impala Fender Louvers Full Set (96.6% similar) 1958 chevy impala left fender louvers factory part# 3747379 in original box with nuts these are for the drivers side nos and very nice shape but also 70 years old impossible to find shipping 12.00 52026...(May 20th, 2026)