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  2. sku: 17388228735955604
  3. HILAMPS 12857545

HILAMPS 12857545 Alternator 3.0 8465 70A 12V

fits model: 900sc, Mercruiser. year: 1999–2002.

12857545 Hilamps For Mercruiser Model 3.0 1999-2006 900sc 1999-2002 8465 70a 12v Alternator

( Brand: Hilamps ), ( Manufacturer Part Number: 12857545 ), ( Type: Alternator ), ( Fitment Type: Direct Replacement ), ( Universal Fitment: No ), ( Oe/oem Part Number: 8465 ), ( Rotation: Cw ), ( Amps: 70 ), ( Pulley Grooves: 1fan ), ( Location: Internal )

Review HILAMPS Model 3.0 2006 70a 12v Alternator fits MERCRUISER 900SC 1999–2002

Introducing the Hilamps 12857545 marine alternator, an essential upgrade for your Mercruiser 3.0 engines from 1999 to 2006, including the 900SC models from 1999 to 2002, 8465, and 70A 12V systems. This high-performance alternator is designed to ensure optimal charging and battery maintenance for your marine vehicle.

The Hilamps 12857545 alternator boasts a robust construction, with a durable cast aluminum housing and a high-quality, corrosion-resistant seal. It is designed to withstand the harsh marine environment, offering superior reliability and longevity.

This alternator features a powerful output of 90 amps, ensuring that your batteries are charged efficiently and effectively. It is also designed to maintain a consistent charging voltage, even when under heavy load, making it an ideal choice for boats with multiple electrical systems and accessories.

The Hilamps 12857545 alternator is also easy to install, with a plug-and-play design that allows for a straightforward replacement of your existing alternator. It comes complete with all necessary mounting hardware and wiring, making the installation process hassle-free.

This alternator is also designed to be energy efficient, with a regulation system that minimizes power loss and ensures that your batteries are charged as effectively as possible. It also features a diode that prevents reverse current flow, protecting your batteries from discharge and prolonging their life.

In summary, the Hilamps 12857545 marine alternator is a high-performance, reliable, and easy-to-install solution for charging and maintaining the batteries on your Mercruiser 3.0 engines. With its robust construction, powerful output, and energy-efficient design, it is an essential upgrade for any marine vehicle that demands consistent and reliable power.

Pros and Cons of Buying a Hilamps 12857545 Alternator for Mercruiser 3.0 (1999-2006), 900sc (1999-2002), 8465, and 70a Engines

Pros:

1. Compatibility: This alternator is specifically designed for the mentioned Mercruiser models, ensuring a perfect fit.

2. High Output: With a 12V, 70A rating, it delivers a significant amount of power to keep your battery charged and support your electrical system.

3. Durability: Hilamps is a reputable brand known for manufacturing high-quality and reliable components. This alternator is built to last.

4. OEM Replacement: It is an OEM (Original Equipment Manufacturer) replacement, meaning it is identical to the original part in terms of design, performance, and fit.

5. Easy Installation: The alternator comes with a detailed installation guide, making the process relatively straightforward for most DIYers.

Cons:

1. Cost: Compared to some aftermarket alternators, the Hilamps 12857545 may be pricier due to its OEM design and brand reputation.

2. Availability: Depending on your location, it might be harder to find this alternator in local stores, making online purchases necessary.

3. Weight: This alternator is heavier than some aftermarket alternatives due to its premium build quality and OEM design.

Conclusion:

The Hilamps 12857545 alternator offers excellent performance, compatibility, and durability for the mentioned Mercruiser models. Although it may be more expensive than some aftermarket options, its OEM design and high-quality build make it a worthwhile investment for boat owners who prioritize reliability and peace of mind.

Recommendation:

If you own a Mercruiser 3.0, 900sc, 8465, or 70a engine from the specified years and require a reliable, high-performance alternator, the Hilamps 12857545 is an excellent choice. It may be more expensive than some alternatives, but its OEM design, durability, and compatibility make it a wise investment for your boat's electrical system.

Details:

Fast shipping: All our packages use USPS First Class/UPS/FedEx. Fitment: Mercruiser model 3.0 / 3.0LX 2006 All Delco - S/N 0M326293 Below GM 3.0L 181ci 4cyl Korean 65A Alt. New List Item. Mercruiser model 3.0 / 3.0LX 99-05 All GM 3.0L - 181ci 4cyl Delco Korean 65A Alt.

Mercruiser model 900SC 99-02 All GM 9.0L - 542ci 8cyl Delco Korean 65A Alt. When installing the battery, be sure not to install it incorrectly. Package Included: 1 x Alternator. Will easily burn out.

When using an integrated circuit regulator, the ignition switch should be turned off immediately when engine is not running. The images shown are not the actual item and for your reference only. Usually, install the positive wire first and not ground wire, otherwise diode. Position: Front.

The tension of the transmission belt must be appropriate.

specifications altnagen:

  • for models: 900sc, Mercruiser
  • for years: 1999-2002
  • brand: Hilamps
  • mpn: 12857545
  • type: Alternator
  • fitment type: Direct Replacement
  • universal fitment: No
  • oe/oem part number: 8465
  • rotation: Cw
  • amps: 70
  • pulley grooves: 1fan
  • location: Internal

payments altnagen:

  • other
  • credit card: Diners-club
  • wallet: Paypal

offer altnagen:

  • quantity: 10
  • sold: 0
  • availability: In Stock
  • best offers: True
  • options: Ship-to-home
  • started: January 5, 2026

shipping altnagen:

  • service: Standard
  • transit: 3-7 Days
  • cost: $0.00
  • class: Standard
  • type: Fixed

returns altnagen:

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

general altnagen:

  • Car Truck Parts Accessories > Starters, Alternators, ECUs Wiring > Alternators Generators
  • condition: New

seller altnagen:

  • city: Ontario, California
  • # reviews: 5298
  • rating: 98.6%
for models: 900sc, mercruiser, for years: 1999-2002, type: alternator, fitment type: direct replacement, universal fitment: no, oe/oem part number: 8465, rotation: cw, amps: 70, pulley grooves: 1fan, location: internal,
category: auto parts > car truck parts accessories > starters, alternators, ecus wiring > alternators generators, sku: 17388228735955604,
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