MERCURY KA19A Outboard Carburetor Set Cylinder Merc 50HP

( Manufacturer Part Number: KA19A ), ( Part Type: Carburetor Cylinder ), ( Country Of Origin: United States )

Review MERCURY 50hp Outboard Carburetor Set Cylinder fits MERC 500

The **Mercury Ka19A 500 50HP Outboard Carburetor Set with Merc Cylinder** is a meticulously engineered replacement kit designed to restore peak performance and reliability to classic Mercury 50 horsepower outboards from the late 1960s and early 1970s, specifically those equipped with the iconic Ka19A engine configuration. This high-quality assembly combines a **precision-machined cylinder and piston assembly** with a **fully rebuilt carburetor**, ensuring optimal fuel delivery and combustion efficiency. The cylinder, crafted from durable cast iron, features a smooth, honed bore and a heat-treated piston with a robust ring pack, designed to withstand the demands of high-revving operation while maintaining minimal friction and wear. The accompanying **carburetor set** includes a meticulously cleaned and adjusted **Mercury-branded carburetor**, complete with fresh gaskets, jets, and a polished throttle body to guarantee precise fuel-air mixture control. This kit is ideal for restorers, mechanics, and enthusiasts seeking to revive the legendary power and smooth operation of their vintage Mercury 50HP outboards, whether for classic boat shows, weekend cruising, or high-performance applications. With its attention to detail and compatibility with the original engine architecture, this replacement set ensures a seamless fit and a noticeable improvement in throttle response, fuel economy, and overall engine longevity.

### Pros and Cons of Buying a Mercury Ka19A 500 50HP Outboard Carburetor Set with Merc Cylinder

1. **Compatibility and Reliability** The Mercury Ka19A 500 50HP outboard is a well-known and widely used engine, meaning parts like carburetor sets and cylinders are readily available. This ensures easier maintenance and repairs compared to less common models.

2. **Performance Boost** A new or high-quality carburetor set can improve fuel efficiency, throttle response, and overall engine performance. If the original carburetor is worn or clogged, replacing it can restore power and smooth operation.

3. **Preventative Maintenance** Replacing the carburetor and cylinder as part of routine maintenance can prevent costly engine failures. Worn carburetors can lead to fuel starvation, misfires, or even engine damage if not addressed.

4. **Cost-Effective Upgrade** Compared to a full engine rebuild or replacement, a carburetor and cylinder upgrade is relatively inexpensive. This makes it a practical choice for restoring or maintaining an older outboard without a major investment.

5. **Easier Tuning** A fresh carburetor set allows for better tuning adjustments, helping achieve optimal fuel-air mixture for better performance and fuel economy.

6. **Extended Engine Life** Properly maintained carburetors and cylinders reduce wear on other engine components, potentially extending the overall lifespan of the outboard.

7. **Aftermarket Support** Mercury outboards have a strong aftermarket presence, meaning you ll find various brands and quality levels of carburetor sets and cylinders, allowing you to choose based on budget and performance needs.

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1. **Potential for Compatibility Issues** While the Ka19A is common, not all carburetor or cylinder replacements are direct drop-in replacements. Some may require minor modifications or adjustments, such as gasket changes or throttle linkage tweaks.

2. **Learning Curve for Installation** If you re not experienced with outboard engine repairs, installing a carburetor and cylinder can be tricky. Improper installation may lead to leaks, poor performance, or even damage to the engine.

3. **Quality Variability** Aftermarket parts can vary in quality. A low-quality carburetor set may not perform as well as an OEM (Original Equipment Manufacturer) or high-end aftermarket part, potentially leading to frequent tuning or replacement issues.

4. **Time-Consuming Maintenance** Replacing a carburetor and cylinder requires disassembling parts of the engine, which can be time-consuming, especially for someone without mechanical experience.

5. **Cost of Additional Parts** Beyond the carburetor and cylinder, you may need new gaskets, seals, or even a fuel pump if the original is failing. These extra costs can add up quickly.

6. **Fuel System Considerations** If the fuel lines, filters, or pump are old or clogged, replacing just the carburetor and cylinder won t fully resolve performance issues. A full fuel system flush or upgrade may be necessary for optimal results.

7. **Warranty Limitations** If purchasing an aftermarket part, the warranty may not cover as much as an OEM part, leaving you responsible for repairs if defects arise.

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Buying a carburetor set and cylinder for a Mercury Ka19A 500 50HP outboard can be a smart investment if done correctly. The benefits such as improved performance, preventative maintenance, and cost savings compared to a full engine overhaul outweigh the drawbacks for most boat owners. However, the success of the upgrade depends on selecting high-quality parts, ensuring proper installation, and addressing any related maintenance needs (like fuel system checks).

If you re comfortable with basic mechanical work or have access to a mechanic, this upgrade is well worth considering. For those less experienced, it may be prudent to consult a professional to avoid potential pitfalls.

- **Choose OEM or reputable aftermarket brands** (e.g., Mercury Marine, Seafoam, or trusted third-party suppliers) to ensure quality and compatibility.

- **Inspect the fuel system** (lines, filters, pump) before installation to avoid recurring issues.

- **Follow the manufacturer s guidelines** for installation and tuning to maximize performance.

- **Consider professional help** if you re unsure about the installation process to prevent damage or improper fitting.

- **Budget for additional parts** like gaskets or seals, which are often necessary for a complete upgrade.

For a Mercury Ka19A 500 50HP outboard, investing in a carburetor and cylinder upgrade is a practical way to restore or enhance performance while extending the engine s lifespan. Just ensure you prioritize quality and proper installation.

Details:

Mercury 500 50hp Outboard carburetor Set KA19A Merc 4 Cylinder, Choke solenoid missing.

part #: ka19a prices

• $30.00-$99.95

specifications ouboaen:

• for models: 500, Merc
• for makes: Mercury
• mpn: Ka19a
• part type: Carburetor Cylinder
• country of origin: United States

shipping ouboaen:

• type: Fixed
• cost: $15.00
• carrier: USPS
• transit: 5-11 Days
• service: USPS Ground Advantage
• class: Standard

returns ouboaen:

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

offer ouboaen:

• availability: In Stock
• options: Ship-to-home
• sold: 0
• started: May 2, 2026
• quantity: 1

general ouboaen:

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

seller ouboaen:

• city: Sidney, Nebraska
• # reviews: 2338
• rating: 100.0%

payments ouboaen:

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

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