PONTIAC 5963140-2 Trans Am Rh Rear Marker Lights Gm

( Manufacturer Part Number: 5963140-2 ), ( Mounting Style: Screws ), ( Vintage Part: Yes ), ( Placement On Vehicle: Rear, Right ), ( California Prop 65 Warning: No ), ( Type: Side Marker Light Assembly ), ( Housing Color: White ), ( Features: Sae-certified ), ( Lens Color: Red ), ( Finish: Smooth ), ( Country Of Origin: United States ), ( Lighting Technology: Incandescent )

Review PONTIAC Trans Am Rh Rear Side Marker Lights Gm Oem fits FIREBIRD FORMULA 1970–1981

The **Pontiac 5963140-2 Rear Marker Lights** for the **1970 1981 Firebird, Trans Am, and Formula RH** models are a meticulously crafted, high-quality replacement part designed to restore both the functional integrity and classic aesthetic of your iconic American muscle car. These rear marker lights are a direct-fit solution, ensuring a seamless installation that matches the original equipment manufacturer (OEM) specifications, including precise mounting positions, wiring harness compatibility, and lens alignment. Crafted from durable, long-lasting materials, these lights feature a robust housing that resists corrosion and wear, even under the harshest driving conditions, while the clear, amber-tinted lenses maintain optimal visibility without compromising the vehicle s vintage charm. The design adheres to the distinct styling cues of the era, with a sleek, angular shape that complements the aggressive, aerodynamic lines of the Firebird, Trans Am, and Formula RH, ensuring they blend effortlessly into the original bodywork. Whether you re restoring a show-quality classic or maintaining a daily driver, these rear marker lights deliver both reliability and authenticity, helping to preserve the timeless appeal of your Pontiac while meeting modern safety standards. Built to endure decades of use, they are an essential upgrade for enthusiasts seeking to enhance both the performance and presentation of their muscle car legacy.

### **Pros and Cons of buying a Pontiac 5963140-2 (1970 1981 Firebird/Trans Am Formula RH Rear Marker Lights) GM Part**

1. **Classic Muscle Car Appeal** The Firebird and Trans Am, especially from the early '70s to early '80s, are iconic American muscle cars with strong cultural significance. The Formula models (particularly the Trans Am) are highly sought-after for their performance heritage.

2. **Reliability of GM Parts** GM (General Motors) parts, even older ones like this rear marker light assembly, are generally durable and widely available. The part number suggests it was designed for longevity, though wear over decades may require replacement.

3. **Easy to Find Replacement Parts** Since this is a common GM component, finding duplicates or aftermarket alternatives is straightforward. Dealerships, junkyards, and online marketplaces (e.g., eBay, RockAuto) often carry similar or identical parts.

4. **Restoration Potential** If you re restoring a Firebird/Trans Am, this part is a small but important detail. Authentic reproduction parts enhance authenticity, and the cost is minimal compared to other high-value restorations.

5. **Low Cost** As a single rear marker light assembly, this part is inexpensive, especially if sourced from a junkyard or online. The price won t significantly impact your budget.

6. **Functionality Over Aesthetics** While not a performance-critical part, functional rear markers are essential for safety and legal compliance. Replacing worn or missing lights ensures the vehicle meets road-legal standards.

---

1. **Age and Wear** Parts from this era (1970s early '80s) may be brittle due to aging rubber seals, corroded metal, or faded plastic. The rear marker lights could be cracked, non-functional, or difficult to install if the housing is degraded.

2. **Compatibility Issues** While the part number suggests it fits multiple models, slight variations in mounting or wiring between years (e.g., 1970 vs. 1981) may require adjustments. Always verify fitment before purchasing.

3. **Aftermarket vs. OEM Quality** Cheaper aftermarket replacements might not match the original s durability or appearance. If authenticity is important, sourcing an OEM or high-quality reproduction part is better but may cost more.

4. **Installation Challenges** Older vehicles often have rusted or stripped mounting points. If the surrounding area (e.g., tail panel, wiring harness) is damaged, additional repairs may be needed.

5. **Limited Performance Impact** Unlike engine or suspension parts, rear marker lights don t affect performance. If you re buying this part for a project car, prioritize higher-value restorations first.

6. **Potential for Counterfeit Parts** Online marketplaces sometimes sell fake or mismatched parts. Verify the seller s reputation and inspect the part upon arrival to avoid receiving a knockoff.

---

This Pontiac rear marker light assembly (5963140-2) is a practical and inexpensive part for restoring or maintaining a classic Firebird or Trans Am. Its pros low cost, easy availability, and cultural relevance outweigh the cons (potential wear, minor compatibility risks) for most enthusiasts. However, if you re restoring a high-end project car, ensure the part fits perfectly and is in good condition before purchasing.

- **Buy it if:** You need a simple, affordable replacement for a functional or cosmetic restoration, and you ve confirmed compatibility with your specific model year.

- **Avoid it if:** The part is visibly damaged (cracked housing, broken wiring) or you suspect it s a counterfeit. In that case, seek a higher-quality reproduction or OEM alternative.

- **Best sources:** Reputable online marketplaces (eBay, RockAuto), junkyards, or GM parts dealers. Always inspect the part before finalizing the purchase.

- **Alternative:** If the part is unavailable, consider aftermarket options like **Sparks or ECS** for reliable reproductions.

For most classic car owners, this is a minor but meaningful upgrade worth the investment for authenticity and safety.

Details:

1970- 1981 Firebird trans am, right rear passenger side marker lamp assembly, red in fair condition with spot shown photos but still usable.

part #: 59631402 price

• $9.99

specifications sidemarkeligh:

• for models: Firebird, Formula
• for makes: Pontiac
• for years: 1970-1981
• mpn: 5963140-2
• mounting style: Screws
• vintage part: Yes
• placement on vehicle: Rear, Right
• california prop 65 warning: No
• type: Side Marker Light Assembly
• housing color: White
• features: Sae-certified
• lens color: Red
• finish: Smooth
• country of origin: United States
• lighting technology: Incandescent

payments sidemarkeligh:

• credit card: Discover
• other
• wallet: Paypal

general sidemarkeligh:

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

offer sidemarkeligh:

• quantity: 1
• options: Ship-to-home
• best offers: True
• sold: 0
• availability: In Stock
• started: April 9, 2026

seller sidemarkeligh:

• rating: 100.0%
• # reviews: 439
• city: Festus, Missouri

returns sidemarkeligh:

• policy: No Returns

shipping sidemarkeligh:

• type: Calculated
• service: USPS Ground Advantage
• cost: $5.89
• class: Standard
• carrier: USPS
• transit: 5-11 Days

Pontiac 5963140-2 Is Similar To:

• 05974641 Gm Nos Side Chevy Buick Olds Pontiac Cadillac (15.4% similar) You are buying on a gm nos side marker-reflector believed to fit some or many: 1970 SCHEVY, Buick, old's, pontiac, Cadillac, GMC. Its nos, in the original packaging. I do not know all of the exact applications. Sales and shipping within the USA only...(March 20th, 2019)
• 05975588 General Motors Gm Pontiac Marker Light Lens Or (31.9% similar) Rears m lamp new old stock gm marker light lens. Part is still sealed in its original package...(April 4th, 2018)
• 12450407 General Motors New Oem Gm Pontiac Transponder Blank Key (26.1% similar) Brand new oem gm part number: opened only for pictures...(August 1st, 2018)
• 16500009 General Motors Marker Light Lh Amber Pontiac Fiero Gm Nos (36.1% similar) Gm left hand amber marker light fits pontiac fiery this is a nos part...(October 25th, 2018)
• 16501539 General Motors Marker Light Lh Red Pontiac Fiero Gm Nos (36.6% similar) Gm left hand red marker light fits 1987 pontiac fiery this is a nos part...(October 25th, 2018)
• 16505680 General Motors Gm Nos Side Marker Rh Pontiac Fiero (39.2% similar) Gm red side marker fits pontiac fiery nos part price is just for one...(July 15th, 2018)
• Gm Nos Marker Pontiac 16508748 Oem Light Side (26.9% similar) Out of a local estate. Bag is beat up a bit...(March 27th, 2015)
• 16511871 Genuine Gm New Pontiac Sunbird Left Front Side Marker Park (37.2% similar) ...(June 29th, 2018)
• 479631 Nos 1970-76 Pontiac Firebird Left Rear Side Marker Light Bezel P29 (51.9% similar) Firebird trans am side marker light...(January 6th, 2016)
• 5952924 Nos 1973-1977 Pontiac Lemans Rh Rear Side Marker Lamp Bezel Gm (46.5% similar) You are buying on a nos pontiac leans rh rear side marker lamp bezel. Gm new and never installed...(April 6th, 2016)
• 915590 1984-1992 Chevrolet Camaros And Firebirds Nos Camaro Pontiac Firebird Right Front Side Marker Lamp (36.1% similar) The item is in good unused nos condition and comes in its original gm parts bag. It was well stored and looks good up for offer is an nos Chevrolet Camry and pontiac Firebird right front side marker lamp assembly. The part number is and the group number is...(August 31st, 2016)