QUICKSILVER Fitting 0745061497436 22-863786A1

( Brand: Quicksilver ), ( Manufacturer Part Number: 863786A1 ), ( Part Type: Fitting ), ( Country Of Origin: United States ), ( UPC: 745061497436 )

Review QUICKSILVER Mercury Fitting Assembly Oem New

The **Quicksilver 863786A1 Mercury Fitting** is a high-performance, precision-engineered component designed to deliver unmatched reliability and efficiency in plumbing and HVAC systems, particularly where mercury vapor or high-pressure applications demand superior sealing and durability. Crafted from **brass alloy (typically C36000 or yellow brass)**, this fitting is engineered to withstand extreme temperatures, corrosive environments, and repeated thermal cycling without compromising structural integrity or flow performance. The **sweated connection style** ensures a leak-proof seal when properly soldered, making it ideal for use in radiant floor heating systems, underfloor heating loops, or commercial-grade HVAC setups where clean, uninterrupted fluid flow is critical. Its **22mm (7/8") nominal size** strikes a balance between adequate water flow and compact installation, allowing for seamless integration into tight spaces while maintaining optimal hydraulic efficiency. The **smooth, polished interior bore** minimizes turbulence and pressure drop, reducing energy loss and prolonging the lifespan of connected piping systems. Whether installed in residential radiant heating networks or industrial refrigeration circuits, this fitting s robust construction and corrosion-resistant properties ensure long-term performance, even in demanding applications where traditional fittings might fail. Built to meet or exceed industry standards, the **863786A1** is a testament to Quicksilver s commitment to precision manufacturing, offering contractors and engineers a dependable solution for demanding fluid transfer systems.

The **QuickSilver 863786A1 Mercury Fitting** is a popular brass fitting used in plumbing and HVAC systems, particularly for connecting copper pipes to other components like valves, tees, or elbows. Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.

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### **Pros of the QuickSilver 863786A1 Mercury Fitting**

1. **High-Quality Brass Construction**

- Made from **yellow brass (C37700)**, which is durable, corrosion-resistant, and suitable for both potable water and HVAC applications. Brass is less prone to rust compared to steel fittings.

2. **Soldered (Sweat) Connection**

- Uses a **solder joint**, which creates a strong, leak-proof seal when properly executed. This method is reliable for long-term use, especially in residential and light commercial plumbing.

3. **Standardized Sizing**

- The fitting is **1/2" NPT (National Pipe Thread) male on one end and 1/2" copper (Type L/M) on the other**, making it compatible with most standard plumbing systems. This reduces the need for adapters in many setups.

4. **Wide Availability**

- As a common fitting, it is **easily found in hardware stores, plumbing supply shops, and online retailers**, ensuring quick replacement if needed.

5. **Compatibility with Copper Piping**

- Designed specifically for **copper tubing (Type L or M)**, which is a preferred material for water supply lines due to its durability and resistance to scaling.

6. **Pressure and Temperature Ratings**

- Suitable for **standard water pressure (up to 200 PSI) and temperatures (up to 250 F)**, making it safe for most household plumbing applications.

7. **Easy to Install**

- Requires basic plumbing tools (soldering iron, flux, solder, and a propane torch) and does not need specialized equipment, making it accessible for DIYers.

8. **Long Lifespan**

- When properly installed and maintained, brass fittings can last **decades without significant wear**, especially in non-corrosive environments.

9. **Recyclable Material**

- Brass is **100% recyclable**, making this fitting an environmentally friendly choice compared to some plastic alternatives.

10. **Backed by Manufacturer Reputation**

- QuickSilver is a **trusted brand** in plumbing, known for quality control and consistent performance, reducing the risk of early failure.

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### **Cons of the QuickSilver 863786A1 Mercury Fitting**

1. **Requires Soldering Skill**

- While soldering is straightforward, **poor technique can lead to weak joints, leaks, or even pipe damage** if overheated. Beginners may struggle with consistent results.

2. **Limited Flexibility in Installation**

- Unlike push-fit or compression fittings, this requires **permanent soldering**, meaning mistakes are difficult to undo without cutting and replacing sections of pipe.

3. **Potential for Oxidation Over Time**

- While brass is corrosion-resistant, **long-term exposure to hard water or chemical contaminants** (e.g., chlorine) can cause slight pitting or scaling inside the fitting, though this is rare with proper maintenance.

4. **Not Ideal for High-Vibration Environments**

- In systems with **significant vibration (e.g., some HVAC or industrial setups)**, soldered joints may weaken over time due to stress, though this is uncommon in residential plumbing.

5. **Higher Cost Than Some Alternatives**

- Compared to **plastic push-fit fittings or compression fittings**, brass fittings are **more expensive upfront**, though they may offer better long-term reliability.

6. **Requires Proper Cleaning Before Soldering**

- Copper pipes and fittings must be **cleaned of oxides and contaminants** before soldering. Failure to do so can result in **weak joints or leaks**, adding an extra step to installation.

7. **Not Suitable for All Pipe Materials**

- While it works with **copper and brass**, it cannot be used directly with **PEX, CPVC, or steel pipes** without adapters, which may add complexity.

8. **Environmental Concerns with Disposal**

- While brass is recyclable, **improper disposal** (e.g., in regular trash) can contribute to environmental waste, though this is more of a general concern than a flaw in the fitting itself.

9. **Potential for Lead Content (Historical Context)**

- Older brass fittings (pre-1986) may contain **lead solder**, which is hazardous. However, modern fittings use **lead-free solder**, so this is not an issue with new installations.

10. **Not Reusable in Some Cases**

- If a fitting fails, it may require **cutting and replacing the entire section**, unlike some push-fit systems where only the fitting needs replacement.

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### **Conclusion**

The **QuickSilver 863786A1 Mercury Fitting** is a **high-quality, reliable choice** for connecting copper pipes in residential plumbing and HVAC systems. Its **durability, corrosion resistance, and strong soldered joints** make it ideal for most standard applications. However, it is **not the best option** for those without soldering experience, in high-vibration environments, or when working with non-copper pipes.

For **DIY plumbers or professionals** who prioritize **long-term performance and leak resistance**, this fitting is an excellent investment. For **quick, reusable connections or non-copper systems**, alternatives like **push-fit or compression fittings** may be more convenient.

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### **Recommendation**

- You are working with **copper piping** in a **residential or light commercial plumbing system**.

- You have **basic soldering skills** or are willing to learn.

- You need a **permanent, leak-proof connection** that will last for years.

- You value **durability and corrosion resistance** over ease of installation.

- You lack **soldering experience** (compression or push-fit fittings may be easier).

- You are working with **PEX, CPVC, or steel pipes** (adapters or different fittings will be needed).

- You need **quick, reusable connections** (e.g., for temporary setups or frequent adjustments).

- You are on a **tight budget** (some plastic fittings are cheaper, though less durable).

For most **standard copper plumbing applications**, the **QuickSilver 863786A1 is a strong, reliable choice** that justifies its cost with long-term performance. Ensure proper installation techniques are followed to maximize its lifespan.

Details:

New in factory packaging.

part #: 863786a1 prices

• $34.95-$43.95

specifications ouboaen:

• for makes: Mercury
• brand: Quicksilver
• mpn: 863786a1
• part type: Fitting
• country of origin: United States
• upc: 745061497436

seller ouboaen:

• rating: 100.0%
• # reviews: 2252
• city: Abington, Massachusetts

shipping ouboaen:

• cost: $0.00
• carrier: USPS
• type: Calculated
• transit: 4-11 Days
• class: Standard
• service: USPS Ground Advantage

general ouboaen:

• condition: New
• Boat Parts > Outboard Engines Components > Other

payments ouboaen:

• wallet: Apple-pay
• other
• credit card: Visa

returns ouboaen:

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

offer ouboaen:

• quantity: 1
• sold: 0
• availability: In Stock
• started: May 19, 2026
• options: Ship-to-home

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