
2978675 Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $141.76 | Condition is New, 1955 - 1959 GMC Truck Under Dash Turn Signal Wiring Harness 2978675 A1 NOS OEM, shipping cost = $8.50 | 100.0% |

GMC Dash Turn Signal Wiring Harness (A1, NOS) for 1955-1959 Models
Description:This is an original, new old stock (NOS) GMC dash turn signal wiring harness (Part number: GMC 2978675) designed specifically for GMC vehicles manufactured between 1955 and 1959. This wiring harness is a crucial component of your vehicle's electrical system, responsible for transmitting the turn signal commands from the steering column to the front and rear turn signals.
The wiring harness is in excellent condition, as it has been preserved in its original packaging and has not been used before. It features a durable, flexible design to ensure reliable operation, even under extreme temperatures and vibrations. Each wire is properly insulated to prevent electrical shorts and ensure the longevity of the harness.
This NOS wiring harness is an authentic replacement part, ensuring a perfect fit and function in your vintage GMC vehicle. Installing this harness can help restore the turn signals in your classic car to their original working condition, enhancing both the driving experience and the vehicle's appearance.
The wiring harness includes all necessary connectors, making it a complete solution for turn signal wiring needs in your 1955-1959 GMC. It is a must-have for any GMC enthusiast looking to maintain, restore, or upgrade their classic vehicle.
Please note that installation may require some basic electrical knowledge and skills, and professional assistance is recommended if you are uncertain about the process. Properly connecting and securing the wiring harness is crucial to ensure the safety and optimal performance of your vehicle's electrical system.
In summary, this GMC 2978675 NOS dash turn signal wiring harness is an authentic, high-quality replacement part for 1955-1959 GMC vehicles. It is in excellent condition and features a durable design to ensure reliable operation and a perfect fit. Installing this harness can help restore your classic GMC's turn signals to their original working condition, enhancing both the driving experience and the vehicle's appearance.
Pros and Cons of Buying a GMC 2978675 1955-1959 Dash Turn Signal Wiring Harness (A1 NOS)
1. **Original Part**: This wiring harness is a new old stock (NOS) part, meaning it is an original equipment manufactured (OEM) part that has been newly produced but never installed in a vehicle. It is designed to fit and function exactly like the original part in 1955-1959 GMC vehicles.
Pro: Authenticity and Fit
- This part is guaranteed to be a perfect fit for your classic GMC vehicle, ensuring the correct operation of the turn signals.
- By using an original part, you maintain the originality and value of your vehicle.
2. **High-Quality Materials**: New old stock parts are often made with the same high-quality materials as the original parts, ensuring durability and reliability.
Pro: Long-Lasting
- With its original materials, this wiring harness is expected to last longer than aftermarket alternatives.
3. **Reliability**: New old stock parts are often considered more reliable than aftermarket parts since they are made using the same manufacturing techniques and materials as the original parts.
Pro: Dependability
- This wiring harness is likely to provide consistent performance and longevity for your vehicle.
4. **Potential Cost**: New old stock parts can sometimes be more expensive than aftermarket alternatives due to their scarcity and authenticity.
Con: Cost
- The price of this GMC 2978675 1955-1959 Dash Turn Signal Wiring Harness (A1 NOS) may be higher than other aftermarket options.
5. **Availability**: New old stock parts can be harder to find than aftermarket alternatives, especially for less common vehicle models and parts.
Con: Limited Availability
- It may take some time and effort to locate this specific part.
In conclusion, buying the GMC 2978675 1955-1959 Dash Turn Signal Wiring Harness (A1 NOS) offers the benefits of an authentic, high-quality, reliable, and long-lasting part. However, the potential costs and limited availability could be considered drawbacks. Ultimately, the decision to purchase this part depends on your priorities, budget, and the specific needs of your vehicle.
If you're looking for an authentic, reliable, and long-lasting solution for your turn signal wiring needs, this GMC new old stock part could be an excellent investment. However, if you're more concerned about cost and availability, an aftermarket alternative may be a more suitable choice for your classic GMC vehicle.
Details:
1940, 1940's, 1950, 1950's, 1960, 1960's, 1970,1970's. 1955 - 1959 Gmc Chevrolet truck under dash turn signal wiring harness 2978675 A1 nos oem.
specifications interiorswoop:
- for models: A1
- for years: 1955–1959
- brand: Gmc
- mpn: 2978675
- part type: Turn Wiring Signal Harness
- vintage part: Yes
general interiorswoop:
- category: Auto Parts > Car Truck > Interior Accessories
offer interiorswoop:
- price: $141.76
- item condition: New
- best offers: true
- options: ship-to-home
- sold #: 15
- availability: in stock
- started: august 29, 2025
- in stock #: 1
returns interiorswoop:
- policy: returns accepted
- paid by: seller
- time: 30 days
seller interiorswoop:
- city: longmont, colorado
- # reviews: 3555
- rating: 100.0%
shipping interiorswoop:
- service: usps ground advantage
- carrier: usps
- type: fixed
- transit: 5-8 days
- class: standard
payments interiorswoop:
- credit card: discover
- other
- wallet: paypal
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