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  3. MERCRUISER 861570

MERCRUISER 861570 Mag Gm Boat Engine Raw Sea Water Pump 5.7 V8

fits model: Marine, 350, Magnum. make: Mercury. year: 1994.

861570 Mercruiser 94 5.7 L 350 Mag Magnum V8 Gm Mercury Marine Boat Engine Raw Sea Water Pump

( Brand: Mercruiser ), ( Manufacturer Part Number: 861570 ), ( Part Type: Engine Pump ), ( Materials Sourced From: United States )

Review MERCRUISER 5.7 Mag V8 Gm Mercury Boat Engine Raw Sea Water Pump fits MAGNUM MARINE 350 1994

The Mercruiser 861570 94 5.7 350 Magnum V8 GM Mercury Marine boat engine raw sea water pump is a crucial component of your marine vessel's cooling system. This pump is specifically designed for use with Mercruiser's Magnum V8 5.7 liter 350 horsepower engines, and is identified by the part number 861570.

This sea water pump is engineered to draw in raw seawater from the surrounding environment, and then force it through the engine's cooling system to help regulate its temperature during operation. The pump's impeller is constructed from high-performance materials, ensuring it can handle the rigors of the marine environment while maintaining optimal efficiency.

The Mercruider 861570 raw sea water pump features a durable cast aluminum housing, which not only provides excellent protection against corrosion but also ensures a quiet operation. The pump's shaft seal is designed to ensure a watertight seal, preventing any seawater leaks and maintaining the integrity of your engine compartment.

The pump comes with a pre-installed, heavy-duty impeller, which can handle heavy loads and provide consistent, reliable performance. The pump also includes a strainer basket to prevent debris and other large particles from entering the impeller, ensuring that it remains free of obstructions and continues to function effectively.

The Mercruiser 861570 raw sea water pump is designed to be easy to install, with clear instructions provided in the packaging. The pump comes with all necessary mounting hardware, making installation a straightforward process. Additionally, the pump's inlet and outlet connections are standard sizes, allowing for easy integration with your existing cooling system.

Overall, the Mercruiser 861570 raw sea water pump is a high-quality, reliable component that is essential for the proper functioning of your Magnum V8 5.7 liter Mercruiser engine. Its robust design, efficient impeller, and easy installation make it an excellent choice for marine enthusiasts who demand the best performance from their vessels.

Pros and Cons of buying a Mercruiser 861570 94 5.7 350 Magnum V8 GM Mercury Marine Boat Engine Raw Sea Water Pump

Introduction:

The Mercruiser 861570 94 5.7 350 Magnum V8 GM Mercury Marine Boat Engine Raw Sea Water Pump is a crucial component for maintaining the cooling system of the Mercury Marine boat engine. In this analysis, we will discuss the advantages and disadvantages of investing in this specific sea water pump.

Pros:

1. Durability: This sea water pump is built with high-quality materials, ensuring a long service life. The impeller and shaft are made of robust materials, making it suitable for continuous use in marine environments.

2. High Performance: The Mercruiser 861570 350 Magnum V8 pump delivers a high volume of water flow, ensuring effective cooling for the engine. This results in improved engine performance and reliability.

3. Compatibility: This pump is specifically designed for the Mercruiser 5.7 350 Magnum V8 engine, ensuring a perfect fit and easy installation.

4. Reliable: The pump is known for its reliability, as it is engineered to handle the harsh marine conditions without fail.

Cons:

1. Cost: Compared to some aftermarket options, the Mercruiser 861570 350 Magnum V8 sea water pump can be quite expensive.

2. Availability: Since it is a specialized and high-performance pump, it may not be readily available at all marine parts stores.

3. Maintenance: Like any mechanical component, the pump requires regular maintenance to ensure optimal performance. This includes checking the impeller for wear and cleaning the intake strainer.

Conclusion:

The Mercruiser 861570 94 5.7 350 Magnum V8 GM Mercury Marine Boat Engine Raw Sea Water Pump is a valuable investment for those who own a Mercruiser 5.7 350 Magnum V8 engine. Its durability, high performance, and compatibility make it a reliable choice for maintaining the engine's cooling system. However, its cost and availability may be drawbacks for some boat owners.

Recommendation:

If you own a Mercruiser 5.7 350 Magnum V8 engine and are in need of a new sea water pump, consider the Mercruiser 861570 94 5.7 350 Magnum V8 GM Mercury Marine Boat Engine Raw Sea Water Pump. Its advantages outweigh its disadvantages, ensuring effective cooling and improved engine performance. However, carefully consider your budget and availability before making the purchase.

Details:

Please verify exact fitment before purchase. Common applications include Alpha One Gen II and Bravo series drives with small-block Chevrolet-based 5.7L GM Marine engines. 1994 5.7L 350 MAG Magnum V8 GM Mercury Marine Raw Sea Water Pump, Used in good working condition this OEM raw water pump was removed from a engine. Condition: Used, fully functional, normal cosmetic wear, Impeller replaced recently, Spins freely and pumps properly, Fitment: This raw sea water pump fits many MerCruiser 5.0L, 5.7L, 350 MAG V8 engines from the early to mid-1990s through 2000, depending on exact model bracket setup.

Compare all photos, casting numbers, and mounting to your original pump ensure compatibility with specific engine model. The impeller was recently replaced, and the unit is ready for installation.

part #: 861570 price

  • $275.00

specifications otsterndriv:

  • for models: Marine, 350, Magnum
  • for makes: Mercury
  • for years: 1994
  • brand: Mercruiser
  • mpn: 861570
  • part type: Engine Pump
  • materials sourced from: United States

general otsterndriv:

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

shipping otsterndriv:

  • type: Calculated
  • transit: 4-10 Days
  • service: USPS Priority Mail
  • class: Expedited
  • cost: $0.00
  • carrier: USPS

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seller otsterndriv:

  • rating: 100.0%
  • # reviews: 19
  • city: Denver, North Carolina

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offer otsterndriv:

  • options: Ship-to-home
  • availability: In Stock
  • quantity: 1
  • sold: 0
  • started: October 17, 2025
for models: marine, 350, magnum, for makes: mercury, for years: 1994, part type: engine pump, materials sourced from: united states,
category: boat parts > sterndrive components, sku: 4216539518592604,
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1 offer $275.00 USD
  • Used. Offer #1 priced at $275.00 + $0.00 shipping estimate = $275.00* total. Common applications include Alpha One Gen II and Bravo series drives with small-block Chevrolet-based 5.7L GM marine engines. The impeller was recently replaced, and the unit is ready for installation.FREE SHIPPING

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