1. Boat Parts In Otsterndriv Sterndrive Prices For Sale.
  2. sku: 3934664065151604
  3. MERCRUISER 861493A2

MERCRUISER 861493A2 Alpha Sterndrive Cylinder Thermostat 3.0 Housing

861493a2 Mercruiser Alpha One Sterndrive 3.0 4 Cylinder Thermostat Housing

( Brand: Mercruiser ), ( Manufacturer Part Number: 861493A2 ), ( Part Type: Sterndrive Cylinder Thermostat Housing )

Review MERCRUISER Alpha One Sterndrive 3.0 Cylinder Thermostat Housing

The Mercruiser 861493A2 Alpha Sterndrive 3.0 Cylinder Thermostat Housing is an essential component of your MerCruiser Alpha sterndrive system. This thermostat housing is specifically designed to house the engine coolant thermostat, regulating the engine temperature to ensure optimal performance and longevity.

The housing is made from high-quality materials, including a durable aluminum alloy, ensuring resistance to corrosion and wear over time. Its compact design allows for a snug fit within the engine compartment, minimizing the potential for leaks and water intrusion.

The thermostat housing comes equipped with a built-in gasket, ensuring a secure and leak-free seal between the housing and the engine. Its smooth, polished finish not only looks great but also makes installation and removal a breeze.

The thermostat housing is designed to accommodate a Mercruiser Alpha 3.0 liter cylinder engine coolant thermostat, allowing for precise temperature control. The thermostat is an essential component of the engine cooling system, maintaining the engine temperature within an optimal range to prevent overheating and ensure efficient operation.

This thermostat housing is a direct replacement for the original equipment, ensuring a perfect fit and easy installation. It comes with all necessary hardware, including mounting bolts and gaskets, making installation a straightforward process.

In summary, the Mercruiser 861493A2 Alpha Sterndrive 3.0 Cylinder Thermostat Housing is a high-quality, durable component designed to ensure optimal engine temperature control and longevity in your MerCruiser Alpha sterndrive system. Its compact design, smooth finish, and easy installation make it an ideal choice for boat owners looking to maintain their engine's performance and reliability.

Pros and Cons of Buying Mercruiser 861493A2 Alpha Sterndrive 3.0 Cylinder Thermostat Housing

The Mercruiser 861493A2 Alpha Sterndrive 3.0 Cylinder Thermostat Housing is an essential component for maintaining the optimal temperature in your marine engine. Here are some pros and cons that can help you make an informed decision before purchasing.

Pros:

1. Improved Engine Performance: A faulty thermostat housing can lead to poor engine performance, including overheating and reduced power output. Replacing the old thermostat housing with a new one can help improve your engine's performance and efficiency.

2. Enhanced Durability: The Mercruiser 861493A2 Alpha Sterndrive 3.0 Cylinder Thermostat Housing is designed with high-quality materials, ensuring that it can withstand the harsh marine environment. This durability can save you money in the long run by reducing the need for frequent repairs or replacements.

3. Easy Installation: Installing a new thermostat housing is generally a straightforward process. You can either do it yourself or hire a professional to do it for you. The installation process usually involves draining the coolant, removing the old housing, and installing the new one.

Cons:

1. Cost: The Mercruiser 861493A2 Alpha Sterndrive 3.0 Cylinder Thermostat Housing can be quite expensive, especially if you need to purchase it from a marine dealership. You may be able to find it at a lower price from an aftermarket supplier or online retailer.

2. Requires Coolant Drainage: Before installing the new thermostat housing, you'll need to drain the coolant from your engine. This can be a messy and time-consuming process, especially if you're not experienced with marine engine maintenance.

3. Potential for Coolant Leaks: During installation, there is a risk of coolant leaks, especially if the old gasket was not removed properly. Coolant leaks can lead to expensive repairs and downtime, so it's essential to ensure that the installation is done correctly.

Conclusion:

In conclusion, the Mercruiser 861493A2 Alpha Sterndrive 3.0 Cylinder Thermostat Housing is a necessary investment for maintaining the optimal temperature in your marine engine. While it can be expensive and require some labor to install, the improved engine performance, enhanced durability, and straightforward installation process make it a worthwhile investment. If you're considering purchasing this part, be sure to shop around for the best price and consider your experience level with marine engine maintenance.

Recommendation:

Based on the pros and cons discussed above, I would recommend purchasing the Mercruiser 861493A2 Alpha Sterndrive 3.0 Cylinder Thermostat Housing if you're experiencing engine overheating or poor performance. While the cost and installation process may be inconvenient, the benefits of improved engine performance and durability make it a worthwhile investment. If you're not comfortable installing the part yourself, consider hiring a professional to do it for you to minimize the risk of coolant leaks.

Details:

Brand: Mercruiser. Condition: Used. MPN: 861493A2. Horse Power: 120hp, 140hp.

It is in good usable condition guaranteed. For sale is one used thermostat housing for Mercruiser stern drives with 4 cylinder GM engines. Casting Number: 47587. There is some rusting but will work as it should.

part #: 861493a2 price

  • $50.00

specifications otsterndriv:

  • brand: Mercruiser
  • mpn: 861493a2
  • part type: Sterndrive Cylinder Thermostat Housing

seller otsterndriv:

  • # reviews: 27788
  • city: Green Bay, Wisconsin
  • rating: 99.1%

returns otsterndriv:

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

general otsterndriv:

  • Boat Parts > Sterndrive Motors Components > Cooling System
  • condition: Used

offer otsterndriv:

  • quantity: 1
  • availability: In Stock
  • sold: 0
  • best offers: True
  • started: August 21, 2025
  • options: Ship-to-home

shipping otsterndriv:

  • cost: $17.85
  • service: USPS Ground Advantage, USPS Priority Mail, UPS Ground, UPS Next Day Air Saver
  • carrier: USPS, UPS
  • type: Calculated
  • class: Standard, Expedited, One-day
  • transit: 4-8 Days

payments otsterndriv:

  • wallet: Google-pay
  • credit card: Visa
  • other
part type: sterndrive cylinder thermostat housing,
category: boat parts > sterndrive components > cooling system, sku: 3934664065151604,
Mercruiser 861493A2 Is Similar To:
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1 offer $50.00 USD
  • Used. Offer #1 priced at $50.00 + $20.40 shipping estimate = $70.40* total. Condition: Used. MPN: .+$20.40 shipping

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