OLDSMOBILE 166-01001R Supreme Rh Passenger Rear Quarter Panel Extension

( Type: Rear Quarter Panel Extension Housing Trim ), ( Color: Maroon ), ( Material: Plastic ), ( Vintage Part: Yes ), ( Attachment Type: Bolt-on ), ( Ipn: 166-01001r ), ( Country Of Origin: United States )

Review OLDSMOBILE Supreme Rh Passenger Rear Quarter Panel Extension fits CUTLASS 1978–1980

The **Oldsmobile 166-01001R 1978 1980 Cutlass Supreme RH Passenger Rear Quarter Panel Extension** is a meticulously crafted, high-quality replacement part designed to restore the original aesthetic and structural integrity of one of General Motors most iconic mid-sized sedans from the late 1970s. This precision-engineered extension panel, manufactured to exacting specifications, seamlessly integrates with the body of a 1978, 1979, or 1980 Oldsmobile Cutlass Supreme, ensuring a perfect fit for the right-hand drive (RH) passenger side rear quarter section. Crafted from durable, corrosion-resistant materials, this panel is built to withstand the test of time, offering both form and function with a smooth, factory-like finish that blends effortlessly with the surrounding bodywork. Whether restoring a classic for showroom showstopping appeal or addressing the aftermath of an accident, this extension panel provides a reliable solution that upholds the Cutlass Supreme s legendary presence on the road or at the car show. Its attention to detail from the precise contouring of the rocker panel to the crisp alignment of the window line ensures that the restored vehicle retains its original character while benefiting from modern durability. Ideal for enthusiasts and mechanics alike, this part is a testament to the enduring legacy of Oldsmobile s design excellence, delivering a flawless finish that turns heads and turns back the clock to a bygone era of American automotive craftsmanship.

### **Pros and Cons of Buying a 1978 1980 Oldsmobile Cutlass Supreme RH Passenger Rear Quarter Panel Extension (Part #166-01001R)**

1. **Authenticity and Fitment** This is an original, factory-produced part designed specifically for the 1978 1980 Cutlass Supreme. It ensures a perfect fit without the risk of misalignment or structural issues that can arise with aftermarket or mismatched parts.

2. **Reliability** Oldsmobile parts from this era were built to last, and a genuine quarter panel extension will maintain the vehicle s structural integrity. Unlike cheap replacements, it won t warp or crack prematurely under normal use.

3. **Resale Value Preservation** If you plan to restore or sell the Cutlass Supreme later, using an original or high-quality OEM replacement part helps maintain the car s authenticity, which is highly valued in classic car circles.

4. **Avoiding Common Issues with Aftermarket Parts** Many aftermarket quarter panels lack proper reinforcement or alignment points, leading to rust, misalignment, or even safety concerns. An original part eliminates these risks.

5. **Ease of Installation** Since it s the correct part for the model, installation is straightforward, requiring only basic tools and proper alignment techniques. No modifications are needed to make it fit.

6. **Long-Term Durability** The materials used in OEM parts from this era were designed to withstand decades of use, especially in body panels that bear weight and impact. A well-maintained original part can last the life of the car.

7. **Aesthetic Consistency** The part matches the original styling of the Cutlass Supreme, ensuring the car looks complete and authentic. Aftermarket parts often have visible seams or mismatched contours.

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1. **Cost** Original OEM parts, especially for older models like the Cutlass Supreme, can be expensive. Prices may range from **$200 to $500 **, depending on availability and condition. This is significantly higher than many aftermarket alternatives.

2. **Limited Availability** Finding a genuine 1978 1980 Oldsmobile quarter panel extension may require searching through junkyards, salvage yards, or specialty classic car part dealers. Some parts may be in high demand, leading to longer wait times or higher prices.

3. **Condition of the Part** Even if you find the correct part, it may come from a salvaged vehicle and could have rust, dents, or other damage. Inspecting it thoroughly is essential to avoid hidden issues.

4. **Weight and Handling** Older steel body panels are heavier than modern aluminum or plastic alternatives. While this isn t a major drawback for most drivers, it may require more effort during installation and could slightly affect the car s weight distribution.

5. **Potential for Rust** If the part has been exposed to moisture for years, it may already have rust. While this can often be sanded and repaired, it adds extra labor and material costs to the project.

6. **Installation Complexity** While the part fits correctly, installing it properly especially if the surrounding area is rusted or damaged may require welding, body filler, or professional help, increasing labor costs.

7. **Environmental and Ethical Concerns** Purchasing from a salvage yard means the part may have come from a totaled or scrap vehicle. Some buyers prefer ethically sourced parts, though this is subjective.

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### **Conclusion**

- **Authenticity and long-term reliability** are priorities.

- You are restoring or maintaining a classic car where original parts enhance value.

- You have the budget to invest in a quality OEM replacement.

- You can source the part from a reputable dealer or salvage yard with a good return policy.

- **Budget is a major concern**, aftermarket alternatives (while not ideal) may be a more affordable option, though they risk compromising fit and durability.

- You are unsure about installation or bodywork skills, hiring a professional may be necessary, adding to costs.

- The part is difficult to locate, you may need to explore alternative sources or consider a slightly modified aftermarket part.

### **Final Recommendation**

You are committed to a high-quality, authentic restoration.

You have verified the part s condition (no major rust or damage).

You are prepared for the higher cost and potential installation challenges.

Budget constraints make the OEM part unaffordable.

You cannot find the exact part and must compromise on fitment.

You lack experience with bodywork and are unsure about proper installation.

For most serious enthusiasts restoring a Cutlass Supreme, **the original quarter panel extension is the best long-term investment**, ensuring the car remains structurally sound and visually accurate. However, weigh the pros and cons carefully against your project s goals and resources.

Details:

1978-1980 OLDSMOBILE CUTLASS SUPREME RH PASSENGER REAR QUARTER PANEL EXTENSION, VERY NICE CONDITION, MAROON, 43590.

specifications vintagecarbumperus:

• for models: Cutlass
• for makes: Oldsmobile
• for years: 1978-1980
• type: Rear Quarter Panel Extension Housing Trim
• color: Maroon
• material: Plastic
• vintage part: Yes
• attachment type: Bolt-on
• ipn: 166-01001r
• country of origin: United States

general vintagecarbumperus:

• Exterior Parts Accessories > Bumpers Components > Bumper Inserts Covers
• condition: Used

seller vintagecarbumperus:

• # reviews: 24947
• rating: 100.0%
• city: Alliance, Ohio

offer vintagecarbumperus:

• quantity: 1
• options: Ship-to-home
• best offers: True
• started: May 23, 2026
• sold: 0
• availability: In Stock

returns vintagecarbumperus:

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

payments vintagecarbumperus:

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

shipping vintagecarbumperus:

• cost: $0.00
• type: Calculated
• carrier: FedEx
• service: FedEx Ground / FedEx Home Delivery
• transit: 4-7 Days
• class: Standard

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