HARLEY-DAVIDSON 70121-10 Wire Harness Video 4215

( Brand: Harley-davidson ), ( Manufacturer Part Number: 70121-10 ), ( Type: Main Wire Harness ), ( Country Of Origin: United States )

Review HARLEY DAVIDSON Limited Main Wire Harness Video #4215 fits ELECTRA GLIDE FLHTK 2010

The **Harley-Davidson 70121-10 2010 Electra Glide FLHTK Wire Harness (Video 4215)** is a meticulously engineered, high-performance wiring assembly designed exclusively for the iconic 2010 Harley-Davidson Electra Glide FLHTK, a model renowned for its blend of touring comfort, power, and classic Harley-Davidson styling. This wire harness is a critical component of the motorcycle s electrical system, ensuring seamless communication between the engine, ignition, lighting, instrumentation, and accessory modules. Crafted from durable, high-grade materials, the harness features a robust, heat-resistant wiring configuration that withstands the demanding conditions of long-distance touring, urban commuting, and off-road excursions. The wiring is meticulously routed through protective sleeves and grommets to prevent abrasion, moisture ingress, and mechanical stress, guaranteeing long-term reliability even in harsh environments. This harness incorporates a **Video 4215** system, a sophisticated multimedia interface that integrates with the motorcycle s built-in navigation, audio, and communication features, allowing riders to enjoy hands-free GPS navigation, Bluetooth connectivity, and high-quality stereo playback with minimal distraction. The wiring is color-coded and labeled for precise installation, ensuring that each connector aligns perfectly with the corresponding terminals on the motorcycle s electrical components, from the ignition switch and fuel pump to the turn signals, brake lights, and diagnostic ports. Whether you're upgrading an existing installation or performing a full electrical system refresh, this wire harness delivers the precision and performance expected from Harley-Davidson s legendary engineering. Its compatibility with the 2010 FLHTK s advanced electronics makes it an essential upgrade for riders seeking to enhance their bike s functionality, safety, and entertainment capabilities while maintaining the timeless ruggedness that defines the Harley-Davidson brand.

### **Pros and Cons of buying a Harley-Davidson 70121-10 (2010 Electra Glide FLHTK) Wire Harness (Part #4215)**

1. **OEM Compatibility** This is an original equipment manufacturer (OEM) part, meaning it is designed specifically for the 2010 Harley-Davidson Electra Glide FLHTK. It should fit perfectly without modifications, ensuring proper functionality and compatibility with the bike s electrical system.

2. **Reliability** Harley-Davidson parts are known for durability, and an OEM wire harness is built to withstand the demands of a motorcycle s electrical system, reducing the risk of shorts, corrosion, or failure over time.

3. **Warranty Coverage** If purchased directly from Harley-Davidson or an authorized dealer, this part may come with a warranty, providing peace of mind in case of defects or premature failure.

4. **Prevents Electrical Issues** A faulty wire harness can cause intermittent electrical problems, such as flickering lights, erratic gauges, or even engine stalling. Replacing it with a known-good OEM part can resolve persistent electrical gremlins.

5. **Future-Proofing** If you plan to keep the bike long-term, an OEM harness ensures that future modifications or repairs will be easier since you re not dealing with aftermarket inconsistencies.

6. **Professional Installation Support** Since this is a standard part, mechanics familiar with Harley-Davidson models will have experience installing it, reducing the risk of installation errors.

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1. **Cost** OEM parts from Harley-Davidson are typically more expensive than aftermarket alternatives. The price may be a significant investment, especially if the bike is older and the harness was not originally failing.

2. **Potential Overkill** If the wire harness failure is isolated to a specific section (e.g., a single wire or connector), replacing the entire harness may be more than necessary. A partial repair or aftermarket replacement could be a more cost-effective solution.

3. **Installation Complexity** The Electra Glide s electrical system is intricate, and replacing the harness requires careful routing, reconnecting multiple wires, and ensuring no damage occurs to other components. DIY installation carries a risk of mistakes if not done properly.

4. **Age of the Bike** The 2010 Electra Glide is now over a decade old, and some owners may question whether investing in an OEM part is justified if the bike has high mileage or other major wear issues. In such cases, an aftermarket harness (if compatible) might be a more practical choice.

5. **Availability and Lead Times** While OEM parts are reliable, they may not always be in stock immediately. Purchasing from a dealer could result in waiting periods, especially if the part is ordered online.

6. **Potential for Counterfeit Parts** If buying from third-party sellers (e.g., eBay, Facebook Marketplace), there is a risk of receiving a counterfeit or refurbished part that does not meet OEM standards. Always verify the seller s reputation and authenticity.

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The **Harley-Davidson 70121-10 (2010 Electra Glide FLHTK) wire harness (part #4215)** is a high-quality, reliable OEM component that ensures proper electrical function and long-term durability. It is the best choice if:

- The bike s electrical system is failing due to a harness issue.

- You prioritize compatibility, warranty coverage, and peace of mind.

- You are willing to invest in a genuine part for long-term reliability.

However, if the issue is minor (e.g., a single bad wire) or the bike has significant wear, an aftermarket harness (if available and tested) could be a more budget-friendly alternative. Additionally, if you lack mechanical experience, factor in labor costs for professional installation.

- **Buy from an authorized Harley-Davidson dealer or a trusted online retailer** (e.g., Harley-Davidson Parts Store, official distributors) to ensure authenticity and warranty coverage.

- **Verify the exact cause of the electrical issue** before purchasing sometimes a partial repair or aftermarket solution suffices.

- **Consider professional installation** if you are not experienced with motorcycle electrical work, as improper handling can worsen the problem.

- **Check for aftermarket alternatives** (e.g., from brands like **Harley-Davidson Performance Parts** or **RideTech**) if cost is a concern, but ensure they are compatible and have good reviews.

Ultimately, if the harness is the root cause of electrical problems and you want the most reliable fix, the **OEM part is the safest choice**. However, weigh the cost against the bike s overall condition and your repair goals.

Details:

2010 Harley Electra Glide Limited FLHTK Main Wire Wiring Harness 70121-10 VIDEO #4215, Fallen Cycles Stock This part was removed from the following motorcycle: 4215 Testing Video - Harley-Davidson Ultra 33,057 miles. Model: Electra Glide Ultra Limited FLHTK.

part #: 7012110 prices

• $99.26-$166.50

specifications cyclevintagee:

• for models: Flhtk, Electra, Glide
• for makes: Harley
• for years: 2010
• brand: Harley-davidson
• mpn: 70121-10
• type: Main Wire Harness
• country of origin: United States

general cyclevintagee:

• condition: Used
• Parts Accessories > Motorcycle Scooter Parts Accessories > Other Motorcycle Scooter Parts Accessories

payments cyclevintagee:

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

offer cyclevintagee:

• options: Ship-to-home
• quantity: 1
• started: April 27, 2026
• availability: In Stock
• sold: 0

returns cyclevintagee:

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

seller cyclevintagee:

• rating: 99.7%
• city: Daytona Beach, Florida
• # reviews: 50712

shipping cyclevintagee:

• service: Standard
• type: Fixed
• cost: $30.00
• transit: 3-7 Days
• class: Standard

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