MERCURY 84-17829A20 Nos Quicksilver Harness Kit 20FT
fits make: Mercury.
( Manufacturer Part Number: 84-17829A20 ), ( Part Type: Harness ), ( Country Of Origin: United States )
Review MERCURY Nos Oem Quicksilver Harness Kit 20ft Pn
The **Mercury 84-17829A20 NOS Quicksilver Harness Kit (20 ft)** is a meticulously crafted, no-surrogates (NOS) replacement harness system designed to restore or upgrade the performance and reliability of Mercury outboard motors, particularly those from the classic Quicksilver series. Engineered with precision and built to exacting standards, this kit features a robust, corrosion-resistant construction that ensures durability even in the most demanding marine environments. The 20-foot harness assembly is meticulously assembled with high-quality, marine-grade wiring and connectors, including weatherproof terminals and insulated cables, to prevent electrical interference, moisture ingress, and signal degradation. The kit includes a complete set of harness components, such as the ignition harness, starter solenoid wiring, and control module connections, all of which are carefully labeled and color-coded for effortless installation and troubleshooting. Whether you're restoring a vintage Quicksilver outboard or upgrading an older model for enhanced functionality, this NOS kit delivers the authenticity and performance of original equipment, ensuring seamless compatibility with your engine s electrical system. Built to withstand the rigors of saltwater corrosion and frequent use, the Quicksilver harness kit is an essential investment for boat owners seeking to maintain the integrity and efficiency of their Mercury outboards while preserving their classic appeal.
The **Mercury 84-17829A20 QuickSilver Harness Kit (20 ft)** is a popular outboard motor harness kit designed to connect the engine to the boat s electrical system. Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.
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### **Pros**
1. **Compatibility with Mercury Outboards**
The harness is specifically engineered for Mercury outboards, ensuring proper electrical connections and performance. This reduces the risk of compatibility issues that can arise with generic harnesses.
2. **High-Quality Materials**
Mercury uses durable wiring, connectors, and insulation designed to withstand marine environments, including saltwater corrosion and UV exposure. This extends the lifespan of the harness compared to cheaper alternatives.
3. **Easy Installation**
The kit includes clear instructions and labeled wires, making it accessible for DIYers. Mercury s harnesses are often designed with user-friendly connectors that simplify wiring tasks.
4. **Standardized Design**
The 20 ft length is a common choice for most boats, providing enough slack to maneuver the engine without excessive strain on the wiring. This reduces the likelihood of fraying or damage during operation.
5. **Warranty and Support**
Purchasing from Mercury or an authorized dealer often includes warranty coverage, offering peace of mind in case of manufacturing defects. Mercury s customer support can also assist with installation or troubleshooting.
6. **Reliability for Performance**
Proper harnessing ensures consistent power delivery to the outboard, which is critical for throttle response, ignition, and overall engine performance. A well-made harness minimizes electrical interference or voltage drops.
7. **Safety Features**
The kit typically includes fuses and proper grounding, which are essential for preventing electrical shorts or fires. Mercury s designs adhere to marine electrical safety standards.
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### **Cons**
1. **Cost**
The harness is priced higher than generic or aftermarket alternatives. For budget-conscious buyers, this may be a significant upfront investment, especially if replacing an existing harness.
2. **Limited Customization**
The kit is a fixed-length (20 ft) and pre-wired solution. Boats with unique electrical layouts or longer distances between the engine and battery may require additional wiring or extensions, adding complexity or cost.
3. **Potential Overkill for Small Engines**
If you have a very small outboard (e.g., 2.5 5 hp), the harness may feel excessive or unnecessarily expensive. In such cases, a simpler, cheaper harness might suffice.
4. **Installation Skill Required**
While the instructions are clear, improper installation such as incorrect wire routing or loose connections can still lead to electrical issues. Those unfamiliar with marine wiring may need professional help, adding labor costs.
5. **Replacement of Existing Harness**
If your current harness is functional but outdated, replacing it with a new Mercury kit may not be justified unless you re experiencing specific problems (e.g., corrosion, fraying, or poor performance).
6. **Environmental Stress**
Even with high-quality materials, prolonged exposure to saltwater, humidity, and temperature fluctuations can degrade the harness over time. Regular inspections are necessary to maintain reliability.
7. **Availability and Lead Times**
Depending on the region, Mercury parts may not always be in stock at local dealers, requiring online orders or waiting periods. This could delay boat preparations, especially during peak boating seasons.
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### **Conclusion**
The **Mercury 84-17829A20 QuickSilver Harness Kit (20 ft)** is a robust, reliable, and well-engineered solution for connecting Mercury outboards to a boat s electrical system. Its strengths lie in compatibility, durability, and ease of installation, making it ideal for serious boaters who prioritize performance and longevity. However, the higher cost and lack of customization may deter budget-conscious or DIY novices. If you re replacing a damaged harness, upgrading from an incompatible system, or ensuring optimal electrical performance, this kit is a strong choice. For smaller engines or simple setups, a more affordable alternative might be sufficient.
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### **Recommendation**
**Buy the Mercury 84-17829A20 QuickSilver Harness Kit if:**- You own a Mercury outboard and need a reliable, factory-approved harness.
- You re replacing a worn-out or incompatible harness and want to avoid electrical issues.
- You value durability and are willing to invest in a high-quality, long-lasting solution.
- You re comfortable with basic wiring or have access to professional help for installation.
**Consider alternatives if:**- You re on a tight budget and your current harness is functional.
- You have a very small outboard where a simpler harness would suffice.
- You need a custom length or additional wiring modifications that aren t covered by the kit.
- You re unsure about installation and don t want to risk mistakes.
For most Mercury outboard owners who prioritize performance and reliability, this harness is a worthwhile purchase. Always pair it with regular maintenance to ensure it continues to function optimally in marine conditions.
Details:
This harness kit includes a 20-foot cable with the manufacturer part number 84-17829A20, providing reliable connection for powering and controlling boat components. The NOS OEM Mercury Quicksilver Harness Kit 20' PN 84-17829A20 is a boat part designed specifically for outboard engines.
part #: 8417829a20 prices
- $66.49-$90.00
specifications ouboaen:
- for makes: Mercury
- mpn: 84-17829a20
- part type: Harness
- country of origin: United States
shipping ouboaen:
- carrier: USPS
- type: Calculated
- transit: 5-11 Days
- cost: $14.44
- class: Standard
- service: USPS Ground Advantage
offer ouboaen:
- quantity: 1
- availability: In Stock
- options: Ship-to-home
- sold: 0
- started: March 28, 2026
- best offers: True
payments ouboaen:
- other
- wallet: Apple-pay
- credit card: Discover
seller ouboaen:
- # reviews: 3544
- rating: 100.0%
- city: Ocala, Florida
general ouboaen:
- condition: New other see details
- Boat Parts > Outboard Engines Components > Other
returns ouboaen:
- time: 30 Days
- paid by: Seller
- policy: Returns Accepted
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