1949–1950 Chevrolet Styleline Fleetline NOS Accessory Chrome Gas Fuel Filler Door (#4583006)

🧠 Introduction

The late 1940s marked a turning point in American automotive design, as manufacturers transitioned into a more modern, streamlined aesthetic following World War II. Among the standout vehicles of this era were the 1949 and 1950 Chevrolet Styleline and Fleetline models, which introduced a fresh look and improved functionality.

The 1949–1950 Chevrolet Styleline Fleetline NOS accessory chrome gas fuel filler door, part number #4583006, is a distinctive exterior upgrade designed to enhance both practicality and visual appeal. This OEM accessory replaces or upgrades the standard fuel opening with a polished chrome door, providing a cleaner and more refined look.

For collectors and restorers, this part represents a perfect combination of functionality, protection, and classic styling.

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🚘 About 1949–1950 Chevrolet Styleline & Fleetline

The 1949 redesign introduced a completely new body style for Chevrolet.

Key highlights include:

• Sleek “envelope body” design
• Integrated fenders and smooth lines
• Improved aerodynamics
• Enhanced comfort and interior space
• Wide appeal among post-war buyers

The Fleetline models, in particular, featured a fastback-style roofline, giving them a unique and elegant profile.

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⛽ What Is a Fuel Filler Door?

A fuel filler door is a protective cover placed over the vehicle’s fuel cap opening.

Its functions include:

• Protecting the fuel cap from dirt and debris
• Preventing exposure to weather elements
• Enhancing the exterior appearance
• Providing a finished, streamlined look

In early vehicles, fuel caps were often exposed, making accessories like this especially desirable.

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✨ Chrome Accessory Upgrade

This accessory fuel filler door offers a chrome finish, making it both functional and decorative.

Benefits include:

• Adds a premium visual touch
• Enhances classic styling
• Matches other chrome trim elements
• Improves overall vehicle presentation

Chrome accessories were highly popular in the late 1940s and 1950s.

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🎨 Design & Styling Features

This fuel filler door reflects the styling trends of its era.

Key features include:

• Smooth, rounded contours
• Bright chrome-plated finish
• Precision fit for body panel
• Hinged or snap-style opening mechanism
• Seamless integration into the vehicle’s design

It complements the flowing lines of the Styleline and Fleetline models.

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⚙️ Product Specifications

Product Name:
1949–1950 Chevrolet Styleline Fleetline NOS Chrome Gas Fuel Filler Door

Part Number:
#4583006

Application:

• 1949 Chevrolet Styleline
• 1950 Chevrolet Styleline
• 1949 Chevrolet Fleetline
• 1950 Chevrolet Fleetline

Position:
Exterior (fuel filler opening)

Material:
Chrome-plated metal

Function:
Fuel cap protection and exterior styling

Condition:
New Old Stock (NOS)

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🧩 Understanding NOS (New Old Stock)

This fuel filler door is classified as NOS, meaning it was produced during the original manufacturing period but never installed.

Advantages include:

• Genuine OEM quality
• Exact factory fitment
• Period-correct materials and finish
• Higher collector value

NOS exterior trim pieces are especially sought after.

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🎯 Importance in Restoration

1. Enhances Exterior Appearance

Adds a polished, finished look to the vehicle.

2. Protects Fuel System

Keeps debris and moisture away from the fuel cap.

3. Maintains Authenticity

Uses correct period accessory.

4. Increases Vehicle Value

Original accessories boost collector appeal.

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🔍 About Part Number #4583006

Part number #4583006 confirms:

• Authentic Chevrolet accessory
• Correct fit for 1949–1950 models
• OEM design and specifications

Using verified part numbers ensures accuracy and compatibility.

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🛠️ Installation Considerations

When installing the fuel filler door:

• Align with fuel opening
• Secure using proper mounting hardware
• Ensure smooth opening/closing operation
• Check fitment against body panel

Proper installation ensures durability and appearance.

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📦 Condition & Storage Notes

As an NOS item, it may show:

• Minor storage wear
• Light surface aging
• Packaging imperfections

These are normal and do not affect performance.

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🔍 Identifying Genuine NOS Fuel Filler Doors

To verify authenticity:

• Confirm part number #4583006
• Inspect chrome finish quality
• Check construction and hinge mechanism
• Compare with original Chevrolet references

Authentic NOS parts typically offer superior craftsmanship.

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🎯 Who Is This For?

This accessory is ideal for:

• Classic Chevrolet restorers
• Vintage car collectors
• Show car builders
• Enthusiasts seeking OEM exterior upgrades

It is especially valuable for period-correct restorations.

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🧠 Why Exterior Accessories Matter

Exterior accessories define the overall presence of a classic car. Small upgrades like fuel filler doors can significantly improve both appearance and functionality.

Using original OEM parts ensures:

• Accurate restoration
• Consistent styling
• Long-term durability
• Increased resale value

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🧠 Final Thoughts

The 1949–1950 Chevrolet Styleline Fleetline NOS accessory chrome gas fuel filler door (#4583006) is a classic exterior upgrade that blends style and practicality. Its polished chrome finish enhances the vehicle’s appearance while protecting the fuel system.

As an original OEM accessory, it delivers authenticity and precision, making it an essential component for high-quality restorations. Whether restoring a driver or a show car, this fuel filler door adds a refined finishing touch.

For enthusiasts and collectors, it’s a detail that captures the elegance of post-war automotive design.