MERCURY 4979A2 Crankshaft Pistons Merc

( Manufacturer Part Number: 4979A2 ), ( Part Type: Crankshaft Piston ), ( Country/region Of Manufacture: United States )

Review MERCURY Used Crankshaft Pistons Excellent Condition fits MERC 850 1985

The 4979a2 Mercury Crankshaft Pistons for Merc 85/850 are designed with precision and durability in mind. These pistons are specifically engineered to fit into Mercury outboard engines with a model number of 85 or 850.

Each piston is crafted from high-quality materials, ensuring strength and reliability. The piston skirts are made from forged aluminum, which provides a smooth surface for the piston rings to seal against the cylinder wall. This results in reduced friction and increased engine performance.

The piston rings are made from top-tier materials, ensuring a tight seal and preventing oil leakage. The rings are also designed to withstand high temperatures and pressures, ensuring long-lasting performance.

The piston tops are designed with a unique shape to provide optimal combustion efficiency. This ensures that the engine runs smoothly and efficiently, reducing the chance of engine knocking and increasing fuel efficiency.

The 4979a2 Mercury Crankshaft Pistons for Merc 85/850 are also designed with a precise fit to the crankshaft. This ensures a tight fit and reduces the chance of engine vibration, which can lead to engine failure over time.

In summary, the 4979a2 Mercury Crankshaft Pistons for Merc 85/850 are a high-quality replacement part for your Mercury outboard engine. They are made from durable materials, designed for optimal performance, and fit the engine with precision. By installing these pistons, you can ensure that your engine runs smoothly and efficiently for years to come.

1. Compatibility: These pistons are designed to fit the Merc 85/850 engine, ensuring a seamless installation.

2. High Quality Material: The pistons are made of high-quality materials, which can withstand the rigors of consistent use and provide reliable performance.

3. Improved Engine Performance: Replacing worn-out pistons can lead to improved engine performance, including increased horsepower and torque.

1. Cost: Replacing engine parts like pistons can be expensive, especially if you opt for high-quality options like these.

2. Installation Requires Expertise: Installing new pistons can be a complex process that requires specialized tools and expertise. If not done correctly, it could lead to engine damage.

3. Potential for Engine Issues: While high-quality pistons can improve engine performance, they can also sometimes reveal other underlying engine issues.

While the 4979a2 Mercury Crankshaft Pistons for Merc 85/850 offer several advantages, such as improved engine performance and compatibility, the high cost and potential for engine issues are significant drawbacks. If you have the necessary expertise and resources to install the pistons and diagnose any potential engine issues, then it might be worth considering. However, it's always a good idea to weigh your options and consider other alternatives, such as rebuilding the engine or seeking professional maintenance services.

If you're not confident in your ability to install the pistons or diagnose engine issues, it might be wiser to seek professional assistance. A qualified mechanic can provide you with expert advice and perform the necessary repairs or maintenance to ensure your engine runs smoothly and reliably. Alternatively, you could consider other cost-effective options, such as rebuilding the engine or investing in regular maintenance to extend the lifespan of your current parts.

Details:

Came from serial Merc 850 year: 1973 the rust on bottom end of crankshaft is outside seal so it wont affect use this part see picture. It had great compression. The bearings are good as well. I had to part out the outboard for other reasons.

Used Mercury 4979A2 crankshaft and pistons Merc, excellent condition this setup is in. What you see is get.

part #: 4979a2 prices

• $66.75-$112.00

specifications ouboaen:

• for models: 850, Merc
• for makes: Mercury
• for years: 1985
• mpn: 4979a2
• part type: Crankshaft Piston
• country/region of manufacture: United States

Payments ouboaen:

• PayPal

Returns ouboaen:

• policy: no returns

General ouboaen:

• in stock: Yes
• boating parts > outboard enginescomponents
• condition: Used

Offer ouboaen:

• Started: June 12, 2017, 5:41 pm
• best offer: true
• bids: 0
• quantity: 1
• Sold: 0

Shipping ouboaen:

• type: Flat
• cost: $25.95
• handling: 2 days

Ratings:

1. Thank you 06-07-17
2. very happy with item. recommend seller. a 06-08-17
3. Quick response and fast payment Thanks A 06-08-17
4. Great communication. A pleasure to do business with. 06-09-17
5. Item arrived quickly very happy! 06-10-17

Seller ouboaen:

• zipcode: 95655
• city: Mather, California

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