GM 490253 Nos Trans Am Hood Latch Lock Center Brace SD455-M20-M21 455SD T/a

( Brand: Gm ), ( Manufacturer Part Number: 490253 ), ( Part Type: Hood Tran Latch Lock ), ( Material: Steel ), ( Vintage Part: Yes ), ( Placement On Vehicle: Front, Hood ), ( Ipn: Sd455 M20 M21 ), ( Oe/oem Part Number: Steel Panel Grille Brace Middle Radiator Core F Body ), ( Universal Fitment: No ), ( Finish: Primed ), ( Country Of Origin: United States )

Review GM Nos Pontiac Trans Am Hood Latch Lock Support Brace T/a fits FIREBIRD 1973

The **GM 490253 455SD NOS 1973 Pontiac Firebird Trans Am Hood Latch Lock Center Brace** is a meticulously preserved, factory-new-in-box (NOS) component designed specifically for the legendary 1973 Pontiac Firebird Trans Am, a muscle car icon synonymous with raw power and timeless American automotive craftsmanship. This rare and highly sought-after part is the center brace for the hood latch lock assembly, a critical yet often overlooked element that ensures the hood remains securely latched while maintaining the vehicle s iconic styling cues. Crafted from high-quality, durable materials, this brace is a direct replacement for the original equipment manufactured by General Motors, guaranteeing an exact fit with no modifications required. The piece features the distinctive stamping of the GM part number **490253**, along with the **455SD** designation, indicating its compatibility with the legendary **455 cubic-inch Small Block V8** engine configuration a hallmark of the Trans Am s legendary performance pedigree. The **NOS** designation confirms that this brace has remained in its original packaging, untouched by the hands of collectors or restorers, preserving its pristine condition and historical authenticity. Perfectly suited for enthusiasts restoring or maintaining a 1973 Firebird Trans Am, this brace is not just a functional replacement but a tangible piece of automotive history, embodying the precision engineering of the era. Whether used in a meticulous restoration project or as a critical component for a show-quality build, this part ensures that every detail aligns with the original factory specifications, allowing owners to preserve the Trans Am s legendary allure with uncompromising accuracy.

### **Pros and Cons of buying a 1973 Pontiac Firebird Trans Am (GM 490253 455SD NOS Hood Latch Lock Center Brace)**

#### **Pros**

1. **Original and Unused (NOS) Parts**

- The hood latch, lock, and center brace are listed as "New Old Stock" (NOS), meaning they were never installed and have not been used. This ensures they are in pristine condition, free from wear or damage, and likely to last as long as the original components would have if they had been installed.

2. **Authentic Fitment**

- These parts are specifically designed for the 1973 Pontiac Firebird Trans Am, ensuring a perfect fit without modifications. This reduces the risk of compatibility issues that can arise with aftermarket or mismatched parts.

3. **Preservation of Classic Vehicle Integrity**

- If you own or are restoring a 1973 Trans Am, NOS parts like these help maintain the vehicle s originality and authenticity. Using original components aligns with the goals of many classic car enthusiasts who prioritize historical accuracy.

4. **Potential for Increased Resale Value**

- A restored or well-maintained 1973 Trans Am with original or NOS parts is more desirable to collectors and purists. This can enhance the car s value over time, especially if it remains in excellent condition.

5. **Reliability and Durability**

- Factory parts, even if unused, are built to the standards of their era. While modern materials may offer advantages, NOS parts are likely to be robust and functional, provided they are stored properly (e.g., free from moisture or extreme temperatures).

6. **Avoiding Common Restoration Pitfalls**

- Many classic car restorations fail due to incorrect or poorly sourced parts. NOS components eliminate this risk, as they are guaranteed to match the original specifications.

7. **Nostalgia and Enthusiast Appeal**

- For collectors and enthusiasts, owning or installing NOS parts adds a layer of nostalgia and satisfaction. It s a tangible connection to the car s original build quality and the era it represents.

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#### **Cons**

1. **Cost**

- NOS parts are typically more expensive than aftermarket or reproduction parts. The price reflects their rarity, originality, and the demand among collectors. This can be a significant investment, especially if you need multiple NOS components for a full restoration.

2. **Limited Availability**

- NOS parts are not mass-produced today, and finding them may require searching through specialty dealers, auctions, or online marketplaces (e.g., eBay, classic car forums). Availability can be unpredictable, and you may need to wait for restocks or alternative sources.

3. **Storage and Handling Risks**

- Even if unused, NOS parts can degrade if not stored properly. Exposure to humidity, temperature fluctuations, or physical damage (e.g., dents, scratches) can compromise their condition. You must ensure the parts are packaged securely and stored in a controlled environment.

4. **Potential for Overpaying**

- The market for NOS parts can be speculative, with prices sometimes inflated due to demand or seller hype. Researching comparable sales, consulting with experts, and verifying the authenticity of the parts are crucial to avoid overpaying.

5. **Installation Challenges**

- While NOS parts fit perfectly, installing them may require specialized tools, knowledge, or labor especially if you re not experienced with classic car restorations. Rust, corrosion, or deteriorated mounting points on the vehicle itself could complicate installation, adding to the cost or time required.

6. **Ethical and Sourcing Concerns**

- Some NOS parts may come from salvaged vehicles, raising ethical questions about whether the parts were legally obtained. Ensure the seller has a clear history of the parts and complies with regulations regarding classic car disassembly and part distribution.

7. **Opportunity Cost**

- Allocating funds to NOS parts means less budget may be available for other critical restoration needs, such as engine work, suspension repairs, or interior refurbishment. Prioritizing where to spend your money is essential to avoid neglecting other vital areas of the car.

8. **Modern vs. Original Trade-offs**

- While NOS parts preserve authenticity, they may lack modern improvements (e.g., corrosion-resistant coatings, updated safety features, or easier maintenance). For example, modern locks or latches might offer better security or durability, even if they re not original.

---

### **Conclusion**

Buying NOS parts like the 1973 Pontiac Firebird Trans Am hood latch, lock, and center brace is a **highly rewarding** decision for enthusiasts who prioritize authenticity, historical accuracy, and long-term reliability. The benefits of original components such as perfect fitment, enhanced resale value, and the satisfaction of using factory parts far outweigh the drawbacks for many collectors. However, the **higher cost, limited availability, and potential storage risks** make these parts a significant investment that requires careful planning.

If you are restoring a classic car and have the budget to allocate to NOS parts, they are an excellent choice, especially if you value the car s originality above all else. For those on a tighter budget or less concerned with authenticity, aftermarket or reproduction parts may offer a more practical alternative without sacrificing too much in terms of quality or fit.

### **Recommendation**

- You are restoring a 1973 Trans Am and prioritize originality.

- You have verified the parts authenticity and condition (e.g., through the seller s reputation or third-party inspection).

- You can afford the cost without compromising other critical restoration needs.

- You plan to store the parts properly to prevent degradation.

- Budget is a major constraint, and aftermarket parts meet your quality standards.

- You are unsure about the parts provenance or condition, and you cannot verify their authenticity.

- You are not committed to a full restoration and only need specific parts for minor repairs.

Ultimately, NOS parts are a **premium choice** for the dedicated classic car enthusiast. With the right approach, they can significantly enhance the value and integrity of your 1973 Pontiac Firebird Trans Am.

Details:

Exceptionally hard to find part NOS. We show a tab that may be slightly bent in photos. 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. New old stock GM# 490253 hood latch support brace for 1973 Pontiac F Body cars.

Ship cost is for continental US 48 states.

part #: 490253 prices

• $45.00-$379.00

specifications dooexter:

• for models: Firebird
• for makes: Pontiac
• for years: 1973
• brand: Gm
• mpn: 490253
• part type: Hood Tran Latch Lock
• material: Steel
• vintage part: Yes
• placement on vehicle: Front, Hood
• ipn: Sd455 M20 M21
• oe/oem part number: Steel Panel Grille Brace Middle Radiator Core F Body
• universal fitment: No
• finish: Primed
• country of origin: United States

payments dooexter:

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

offer dooexter:

• availability: In Stock
• sold: 0
• quantity: 1
• options: Ship-to-home
• started: March 27, 2026

shipping dooexter:

• cost: $15.00
• type: Fixed
• service: Economy
• transit: 4-8 Days
• class: Economy

seller dooexter:

• rating: 100.0%
• # reviews: 4200
• city: Adel, Georgia

general dooexter:

• Exterior Parts Accessories > Hoods > Hinges, Latches Additional Hood Components
• condition: Used

returns dooexter:

• policy: No Returns

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