PONTIAC 278252 Rear Left Marker Light

( Manufacturer Part Number: 278252 ), ( Core Charge: 1.00 Which Is Included In The Total Price ), ( Seller Notes: Red ), ( Genuine Oem: No ), ( Type: Side Marker Light ), ( Manufacturer Warranty: 90 Day ), ( Compatibility: Firebird 82-90 Rear; ), ( Interchange Item Code: 168 )

Review PONTIAC Used Rear Left Side Marker Light Grad fits FIREBIRD 1989

The **Pontiac 278252 Rear Left Marker Light** from a **1989 Firebird** is a critical yet often overlooked component that ensures visibility and compliance with automotive safety regulations. This specific marker light, part of the Firebird s iconic Trans Am or GNX lineup, is designed to emit a low-intensity, amber-colored glow that clearly distinguishes the vehicle s rear left corner during low-light conditions, nighttime driving, or inclement weather. Crafted with durability in mind, the light features a robust, molded plastic housing that houses a compact yet efficient incandescent bulb, typically a standard 12-volt unit, which provides consistent illumination without excessive power consumption. The lens itself is precision-engineered to diffuse light evenly, minimizing glare while maximizing visibility for other drivers. This marker light is securely mounted to the Firebird s rear quarter panel, often integrated into the taillight assembly or positioned just below it, ensuring it aligns perfectly with the vehicle s aerodynamic contours. Over the years, the 1989 Firebird s sleek, angular styling demanded components that balanced form and function, and this marker light exemplifies that balance blending seamlessly into the car s aggressive yet refined design while fulfilling its essential safety role. Whether restoring a classic Firebird to its original glory or maintaining one for daily driving, this marker light is a small but vital part of preserving both the vehicle s performance and its timeless presence on the road.

### **Pros and Cons of Buying a 1989 Pontiac Firebird Rear Left Marker Light (Part Number 278252)**

1. **Affordability** Replacing a single marker light is significantly cheaper than buying a full set of tail lights or brake lights. The part itself is relatively inexpensive, and labor costs are minimal if done as a DIY project.

2. **Easy Installation** Marker lights are typically held in place by a simple clip or screw mechanism, making them easy to remove and replace. No specialized tools are usually required, and the job can often be completed in under 30 minutes.

3. **Prevents Further Damage** A broken or missing marker light can attract unwanted attention from law enforcement, leading to fines or citations. Replacing it ensures compliance with traffic laws and avoids unnecessary penalties.

4. **Improves Visibility** Marker lights enhance the vehicle s visibility, especially during low-light conditions or at night. A functioning light helps other drivers see the Firebird s rear profile more clearly, reducing the risk of accidents.

5. **Prevents Rust and Moisture Damage** If the marker light housing is cracked or missing, moisture can enter, leading to rust or electrical corrosion inside the unit. Replacing it prevents long-term damage to the wiring or lens.

6. **Maintains Resale Value** A well-maintained Firebird with all functional lights is more appealing to potential buyers. Addressing minor issues like a broken marker light can make the vehicle appear more reliable and cared for.

7. **DIY-Friendly** Since the part is simple and widely available, even those with limited mechanical experience can replace it themselves. This saves money on labor costs if working on the vehicle at home.

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1. **Potential for Counterfeit Parts** If purchasing online, there is a risk of receiving a low-quality or non-genuine replacement part. Cheap aftermarket lights may not fit properly, function correctly, or last as long as an OEM (Original Equipment Manufacturer) part.

2. **Wiring or Electrical Issues** If the marker light fails repeatedly, the problem may not be the light itself but a faulty wiring harness, corroded connections, or a blown fuse. Diagnosing and fixing these underlying issues can be more time-consuming and expensive.

3. **Difficulty Finding Exact Replacement** While the 278252 part number is widely available, some aftermarket suppliers may not carry the exact match. The replacement might require slight modifications (e.g., trimming or bending) to fit properly, which could void warranties or cause fitment issues.

4. **Rust or Corrosion in the Housing** If the original marker light housing is rusted or damaged, replacing just the bulb or lens may not be sufficient. The entire housing may need replacement to prevent future failures.

5. **Limited Availability of OEM Parts** Over time, OEM parts like this may become harder to find, especially if the Firebird is no longer in production. Buyers may need to rely on aftermarket alternatives, which may not match the original quality.

6. **Time-Consuming for Beginners** While the repair is simple, inexperienced DIYers might struggle with disassembling the tail light assembly or reconnecting wiring. Improper handling could lead to further damage or electrical shorts.

7. **Potential for Theft or Tampering** If the Firebird is parked in an unsafe area, a missing marker light could make it a target for theft or vandalism. Ensuring the vehicle is secure before making the repair is advisable.

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### **Conclusion**

Replacing the rear left marker light on a 1989 Pontiac Firebird is a practical and low-risk repair that offers clear benefits in terms of safety, legality, and vehicle maintenance. The cost savings, ease of installation, and preventative nature of the repair make it a worthwhile investment for any Firebird owner. However, buyers should ensure they source a high-quality replacement part and address any underlying electrical issues to avoid recurring problems.

For most owners, this is a **quick, affordable, and necessary fix** that should not be overlooked. If the Firebird is part of a larger restoration project, replacing the marker light alongside other minor repairs will help maintain its original appearance and functionality.

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### **Recommendation**

1. **Purchase an OEM or high-quality aftermarket part** Look for a replacement labeled as "OEM," "Direct Fit," or from a reputable supplier like RockAuto, eBay (with seller reviews), or a local auto parts store. Avoid extremely cheap generic parts that may not fit or function correctly.

2. **Inspect the wiring and housing** Before installing the new light, check the wiring harness for corrosion, fraying, or loose connections. If the marker light housing is rusted or cracked, consider replacing the entire assembly for long-term reliability.

3. **Follow proper installation steps** Ensure the new light is securely clipped or screwed into place and that the wiring is properly connected. Refer to a repair guide or YouTube tutorial if unsure about the process.

4. **Test the light after installation** Turn on the vehicle s lights and verify that the marker light functions correctly. If it flickers or doesn t work, double-check the wiring and connections.

5. **Consider a full tail light replacement if needed** If the marker light is part of a larger tail light assembly and the surrounding lights (brake, turn signal) are also failing, it may be more cost-effective to replace the entire unit.

For the average Firebird owner, this repair is **highly recommended** and should be completed promptly to avoid fines, safety hazards, and further electrical issues. The time and effort required are minimal compared to the benefits gained.

Details:

Manufacturer Brand: Color: Position: Fitment Notes: Rear Left. Adjust shiftier and kick down cables linkage if applicable. 3.Warranty is valid to original purchaser only. 4.This part may have accessories that are attached and must be removed or switched for proper installation.

B Failure caused by towing a trailer unless your vehicle is rated the manufacturer for. Transmissions:Replace the following with new parts: front pump and output shaft seals, pan gaskets filter. All the above installation should be in accordance with manufacturer guidelines including proper quantity and fill levels of fluids any technical service bulletins updates. Every part is cleaned, tested and inspected by experts.

This part fits vehicles made in the following years 1985 ,1986,1987,1988, 1989 ,1990. Warranty is not transferable. 90 Day Replacement Warranty. The words un examined or unchecked on the delivery note/docket are not acceptable.

Clear all computer fault codes.Failure caused by or related to collisions, theft, vandalism any act of God. FAQ's: here. Menu .: 100% TESTED.

Warranty covers slippage, shifting failures and/or bearing noise. Unless specified as Universal this is a direct fit Side Marker Light. Flush or replace transmission cooler and lines. 90 DAY MONEY BACK GUARANTEE.

Shearing or breaking of teeth in a standard transmission is not warranted under any circumstances. Manual transmissions follow the same procedure as above if applicable. Engine warranty is contingent upon installation of new intake manifold gaskets. Engine installations follow the procedures:Replace following parts if applicable: timing belt, water pump, thermostat, spark plugs, fluids, oil pan gasket, and filter.

part #: 278252 price

• $113.81

specifications sidemarkeligh:

• for models: Firebird
• for makes: Pontiac
• for years: 1989
• mpn: 278252
• core charge: 1.00 Which Is Included In The Total Price
• seller notes: Red
• genuine oem: No
• type: Side Marker Light
• manufacturer warranty: 90 Day
• compatibility: Firebird 82-90 Rear;
• interchange item code: 168

seller sidemarkeligh:

• city: Bloomfield, Iowa
• # reviews: 1316
• rating: 98.3%

shipping sidemarkeligh:

• carrier: USPS
• class: Expedited
• service: USPS Priority Mail
• transit: 5-13 Days
• cost: $0.00
• type: Fixed

returns sidemarkeligh:

• time: 60 Days
• paid by: Seller
• policy: Returns Accepted

payments sidemarkeligh:

• wallet: Google-pay
• credit card: Diners-club
• other

offer sidemarkeligh:

• best offers: True
• quantity: 1
• started: June 11, 2026
• availability: In Stock
• sold: 0
• options: Ship-to-home

general sidemarkeligh:

• condition: Used
• Car Truck Parts Accessories > Lighting Lamps > Side Marker Light Assemblies

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