OLDSMOBILE 647.GM3R78 Lamp Wiring Harness

( Model: CUSTOM-SW ), ( Part Type: Wiring Lamp Harness ), ( Conditions Options: 403 Cruiser Wagon Headlight Harness ), ( Genuine Oem: Yes ), ( Ipn: 647.gm3r78 )

Review OLDSMOBILE Custom sw Lamp Wiring Harness fits 1978

Introducing the Oldsmobile 647.GM3R78 Custom-SW 1978 Lamp Wiring Harness, a high-quality solution designed specifically for Oldsmobile vehicle owners looking to restore or customize their 1978 models. This wiring harness is an essential component of your car's electrical system, ensuring the proper functioning of various lighting features.

Crafted with meticulous attention to detail, this Oldsmobile-specific wiring harness is engineered to fit and function seamlessly in your 1978 Oldsmobile. The harness includes all necessary connections for the headlights, taillights, parking lights, turn signals, and brake lights. Each wire is color-coded and clearly labeled, making installation straightforward and hassle-free.

Made from premium materials, this wiring harness is built to last. It features heavy-duty insulation to protect against wear and tear, ensuring a reliable electrical connection. The terminals are also corrosion-resistant, preventing oxidation and ensuring a secure fit.

The Oldsmobile 647.GM3R78 Custom-SW 1978 Lamp Wiring Harness is compatible with various custom and performance applications, making it an excellent choice for those seeking to enhance their vehicle's appearance and functionality. It is also an ideal solution for those restoring their Oldsmobile to its original glory, as it provides a direct replacement for the original wiring harness.

In summary, this Oldsmobile 647.GM3R78 Custom-SW 1978 Lamp Wiring Harness is a must-have for Oldsmobile enthusiasts looking to restore or customize their 1978 models. It is engineered for a perfect fit, built from premium materials for longevity, and compatible with various custom applications. Trust this high-quality wiring harness to ensure the proper functioning of your Oldsmobile's lighting features.

1. Original Equipment Manufacturer (OEM) Replacement: This wiring harness is a direct replacement for the original 1978 Oldsmobile lamp wiring harness. It ensures a proper fit and function, reducing the chances of compatibility issues.

2. Custom-SW: The "custom-SW" in the part number indicates that this harness is designed with Switch-Tronics technology. This feature enables the user to control multiple functions (turn signals, parking lights, and headlights) with a single bulb, saving time and effort during installation.

3. Easy Installation: With a plug-and-play design, the installation process should be straightforward and efficient. This can save time and money, particularly for those who are not professional mechanics.

4. Quality: As a GM Original Equipment (OE) replacement part, this wiring harness is manufactured to meet the same high standards as the original part. This can provide peace of mind and reliability.

1. Cost: The price point for this custom-SW wiring harness may be higher than some aftermarket alternatives. However, the added features and OE quality might justify the investment for some buyers.

2. Availability: Depending on the availability at your local auto parts store or through online retailers, you might experience a delay in receiving the part. Make sure to plan accordingly.

3. Compatibility: While this harness is a direct replacement for the 1978 Oldsmobile lamp wiring harness, it's essential to confirm that it is compatible with any additional modifications or customizations on the vehicle.

The Oldsmobile 647.GM3R78 custom-SW 1978 lamp wiring harness offers several advantages, such as OEM replacement, ease of installation, and Switch-Tronics technology. However, potential buyers should consider the cost, availability, and compatibility with any customizations on their vehicle before making the purchase.

If you're looking for a reliable, OEM replacement lamp wiring harness for your 1978 Oldsmobile with the added convenience of Switch-Tronics technology, the Oldsmobile 647.GM3R78 custom-SW harness is a solid choice. Be sure to confirm compatibility with any modifications on your vehicle and factor in the cost and availability before making the purchase.

Details:

Engines and transmission come with a standard 90-day warranty. Glen Flora, WI 54526. 403 Cruiser Wagon Headlight Harness.

part #: custom prices

• $39.99-$149.99

specifications othercarlight:

• for makes: Oldsmobile
• for years: 1978
• model: Custom-sw
• part type: Wiring Lamp Harness
• conditions options: 403 Cruiser Wagon Headlight Harness
• genuine oem: Yes
• ipn: 647.gm3r78

returns othercarlight:

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

shipping othercarlight:

• transit: 3-5 Days
• class: Standard
• cost: $0.00
• type: Fixed
• service: Standard

general othercarlight:

• condition: Used
• Car Truck Parts Accessories > Lighting Lamps > Headlight Assemblies

offer othercarlight:

• availability: In Stock
• quantity: 1
• options: Ship-to-home
• started: October 26, 2025
• best offers: True
• sold: 0

seller othercarlight:

• # reviews: 14410
• rating: 99.4%
• city: Glen Flora, Wisconsin

payments othercarlight:

• credit card: Diners-club
• other
• wallet: Paypal

Oldsmobile CUSTOM Is Similar To:

• 1636298 Gm Nos Cadillac Buick Oldsmobile Chevrolet Pontiac Under Hood Lamp (27.7% similar) Nos Cadillac Buick oldsmobile Chevrolet Pontiac under hood lamp. Shipping calculator is not always accurate and should be used for a rough estimate only. Part, gm listed as a Cadillac. I do combine shipping. Should fit all gm vehicles. Nos in the original box...(May 22nd, 2018)
• 5934555 Oem Gm Nos Oldsmobile Tail Lamp Gasket (34.9% similar) Offered for sale is a nos rear tail light gasket part number it fits olds 98S and except export model's either side...(June 15th, 2018)
• 1957 Signal Lens 5948508 Ornament Front Parking Models Nos Oldsmobile Lamp (21.9% similar) The ornament is in excellent condition, but does show some shelf wear. Just on the button at the top of the listing to purchase the front parking and signal lamp lens ornament. The ornament fits 88, super 88, and 98 model's. Also the ornament has a diameter of 7/8 of an inch. There are a few surface...(January 1st, 2015)
• 5953152 Delco Guide Chevy Ii Nova Oldsmobile License Plate Lamp Lens (32.1% similar) No cracks in the lens. Comes with whats pictured. Heres a license plate light removed from 1963 nova in good original condition with surface rust...(February 26th, 2019)
• 88 5958587 Lamp Gm Guide Oldsmobile Ref Lens 22 Original Parking 1967 (30.3% similar) Ref 22 cast in lens guide 36 sae std parts shipped USPS 2 pounds. Note the LHS lens has a small crack in the lens, I glued the back side, very solid and not noticeable. Size 4 face one pair l r 1967 oldsmobile 88 parking lamp lens. 15 x 4 x 2 shipping not included in price. Nos new gm guide part ...(February 14th, 2015)
• 5963327 Gm Nos Oldsmobile Cutlass Tail Lamp Lens Olds (43.1% similar) Nos gm part no box location g3 2 a frame...(February 10th, 2019)
• Nos 5965646 Oldsmobile 5965645 Gm Royalle Lh 88 Lens 1973 Cornering Lamp (41.5% similar) At times, I may forget to change the weight of an item from a previous listing and the postage may seem high. As always, it is best for you to verify the part application for accuracy. I charge actual shipping costs, including the cost of some supplies, but no handling costs. I do my best, but am no...(March 1st, 2015)
• 88 5975619 Pillar Opera Lamp Royale Oldsmobile Delta Nos Gm 1988 (28.3% similar) ...(January 6th, 2015)
• 915086 Gmc Nos Gm License Lamp Oldsmobile Chevrolet (22.8% similar) Please do research to see if it is a exact fit for your vehicle. 700 fits oldsmobile model's, 85-86 electric, 91-93 park avenue c except T98, t0 export, 82-83 Chevrolet celebrity a export T90, 84-85 T90. This is a new old stock gm rear license lamp gr...(March 16th, 2019)
• S606 Henko New Headlight Switch Harness Connector Socket Gm Cars Buick Pontiac Oldsmobile Pt1930 1p1041 85095 Pt181 Ec20 574528 S-606 (20.4% similar) 8l 1 bbl 1 per vehicle 1967 l6 250CI this offer is for one 1 new headlight switch harness repair connector socket also includes the wiring and terminals. 8l 1 bbl VIN1 per vehicle 1967 v8 283CI...(December 31st, 2015)
• Pontiac Gm Oldsmobile Lamp Chevy Buick Nos Trunk 1982-89 (33.6% similar) This is a nos trunk light assembly...(December 6th, 2014)