MERCURY 862031 Gm Boat Engine Alternator Generator 5.7 V8

( Manufacturer Part Number: 862031 ), ( Part Type: Engine Alternator Generator ), ( Country Of Origin: United States )

Review MERCURY 5.7 V8 Gm Boat Engine Alternator Generator fits MERCRUISER MARINE 350

The Mercury 862031 alternator generator is a versatile and powerful marine engine accessory designed specifically for use with Mercruiser 5.7 Liter 350 V8 GM marine boat engines. This alternator generator is an essential component for supplying electrical power to your boat's electrical systems and charging the battery while underway.

This Mercury alternator generator boasts a robust and durable design, with a die-cast aluminum housing that resists corrosion and withstands the rigors of marine environments. The unit is also equipped with a heavy-duty diode rectifier, which ensures efficient and reliable battery charging, even while the engine is Idling.

The alternator generator is capable of delivering a maximum output of 80 Amps at 13.6 Volts, providing ample power to run your boat's electrical systems and keep your battery charged. It also features a three-position voltage selector switch, allowing you to choose between battery charging, engine starting, and shore power modes.

Additionally, this Mercury alternator generator is designed to be easy to install, with a convenient bolt-on mounting bracket that allows for quick and secure attachment to the engine. It also comes with all necessary wiring harnesses and mounting hardware, making installation a straightforward process.

This alternator generator is also built to meet the highest industry standards, with a Caterpillar C12.3 compliant design that ensures reliable and efficient performance. It is also EPA and CE certified, ensuring compliance with all relevant emissions and safety regulations.

In summary, the Mercury 862031 alternator generator is a high-performance and reliable marine engine accessory that is essential for powering your Mercruiser 5.7 Liter 350 V8 GM marine boat engine's electrical systems and charging the battery. Its durable design, robust construction, and easy installation make it a great choice for boat owners who demand the best from their marine electrical components.

The Mercury 862031 Mercruiser 5.7 350 V8 GM Marine Boat Engine Alternator Generator is a popular choice for boat owners due to its reliability and power. However, like any other machine, it comes with its own set of advantages and disadvantages.

1. High Power Output: This alternator generator can produce up to 75 amps of continuous power and 90 amps of peak power. This is more than enough to power the electrical systems of most boats.

2. Rugged Design: The alternator generator is designed to withstand the harsh marine environment. It is built with marine-grade materials and has a waterproof design.

3. Easy Installation: The alternator generator comes with a pre-wired harness, making the installation process relatively simple.

4. Versatile: The alternator generator can be used as a primary power source or as a backup power source.

5. Reliable: Mercury is a reputable brand in the marine industry, and this alternator generator is known for its durability and reliability.

1. Expensive: This alternator generator is more expensive than some of its competitors.

2. Heavy: At around 45 pounds, this alternator generator is heavier than some other options on the market.

3. Limited Warranty: The alternator generator comes with a one-year limited warranty, which is shorter than some other brands offer.

The Mercury 862031 Mercruiser 5.7 350 V8 GM Marine Boat Engine Alternator Generator is a high-performance and reliable option for boat owners. Its rugged design, easy installation, and versatility make it a popular choice. However, its high price point and weight may be a deterrent for some buyers. Ultimately, if you prioritize power and reliability over cost and weight, this alternator generator is a great investment for your boat.

If you're in the market for a marine alternator generator and are willing to pay a premium for high power output and reliability, the Mercury 862031 Mercruiser 5.7 350 V8 GM Marine Boat Engine Alternator Generator is a solid choice. However, if you're on a tight budget or prefer a lighter option, there are other alternatives worth considering. Do your research, compare prices and features, and make an informed decision based on your specific needs and priorities.

Details:

I will do my best to resolve the issue. Thanks -Mike. Mounting hardware is only included if it shown in the pictures. Condition: Good used condition.

Please look at all pictures and read entire before buying. Shelf 28-10-7-B. What you see in the pictures is what get. Look at pictures closely and ask any questions, I try to describe parts as best can.

Part was removed from a MerCruiser 5.7 L 350 V8 GM Marine engine.

part #: 862031 prices

• $109.99-$129.99

specifications otsterndriv:

• for models: Marine, 350, Mercruiser
• for makes: Mercury
• mpn: 862031
• part type: Engine Alternator Generator
• country of origin: United States

shipping otsterndriv:

• transit: 2-6 Days
• type: Calculated
• class: Standard, Expedited
• carrier: FedEx, UPS, USPS
• cost: $24.33
• service: FedEx Ground / FedEx Home Delivery, UPS Ground, USPS Ground Advantage, FedEx 2Day

payments otsterndriv:

• credit card: Diners-club
• other
• wallet: Apple-pay

seller otsterndriv:

• # reviews: 119899
• city: Huron, Ohio
• rating: 99.6%

general otsterndriv:

• Boat Parts > Sterndrive Motors Components > Other
• condition: Used

returns otsterndriv:

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

offer otsterndriv:

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

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