1. Boat Parts In Otsterndriv Sterndrive Prices For Sale.
  2. sku: 4063209899522604
  3. MERCURY 860258-C3

MERCURY 860258-C3 Gm Vortec Engine Thermostat Housing 4.3 262 V6

fits model: Marine, Mercruiser. make: Mercury.

860258-c3 Mercury Mercruiser 4.3 L 262 Gm V6 Vortec Marine Engine Thermostat Housing

( Manufacturer Part Number: 860258-C3 ), ( Part Type: Engine Thermostat Housing ), ( Country/region Of Manufacture: United States )

Review MERCURY 4.3 262 Gm V6 Vortec Engine Thermostat Housing fits MERCRUISER MARINE

The Mercury 860258-C3 Mercruiser 4.3 262 GM V6 Vortec Marine Engine Thermostat Housing is a crucial component designed specifically for marine applications of the GM Vortec V6 engine. This housing is engineered to withstand the unique demands of the marine environment, ensuring optimal engine performance and longevity.

The thermostat housing is manufactured using high-quality materials that offer superior resistance to corrosion, wear, and tear. It features a durable, cast-aluminum construction, which not only enhances its strength and durability but also allows for efficient heat transfer. The engine thermostat plays a vital role in maintaining the ideal operating temperature for the engine, and this Mercury housing ensures that it functions effectively.

The 860258-C3 thermostat housing incorporates a built-in bypass system that automatically engages when the engine reaches its operating temperature. This feature helps in maintaining a consistent engine temperature, ensuring efficient engine operation and fuel economy. The thermostat housing also includes an O-ring seal to prevent coolant leaks, ensuring a reliable and secure fit.

This Mercury thermostat housing is designed to be a direct replacement for the original equipment, ensuring a seamless installation process. It comes with all necessary mounting hardware, making it easy for DIY enthusiasts to install it themselves. Additionally, it is compatible with most aftermarket thermostats, giving users the flexibility to choose their preferred cooling system components.

In summary, the Mercury 860258-C3 Mercruiser 4.3 262 GM V6 Vortec Marine Engine Thermostat Housing is a high-performance, marine-grade component that offers superior durability, efficient heat transfer, and reliable sealing. It is designed to meet the unique demands of marine applications and is a must-have for boat owners looking to keep their engines running at peak performance.

Mercury 860258-C3 Thermostat Housing for Mercruiser 4.3 262 Vortec Marine Engine: A Detailed Analysis

Introduction:

The Mercury 860258-C3 thermostat housing is designed for use with Mercruiser's 4.3 262 Vortec marine engine. This component plays a crucial role in maintaining the engine's optimal temperature and cooling system efficiency. In this analysis, we will discuss the advantages and disadvantages of purchasing this Mercury thermostat housing.

Pros:

1. OEM Quality: This part is an original equipment manufacturer (OEM) replacement, ensuring a perfect fit and function for your engine.

2. Improved Engine Performance: A properly functioning thermostat housing helps maintain the engine's operating temperature, which in turn ensures optimal engine performance.

3. Enhanced Cooling System Efficiency: The thermostat housing directs coolant flow to critical engine components, preventing overheating and improving overall cooling system efficiency.

4. Durability: Mercury Marine components are known for their robustness and reliability, ensuring long-lasting performance.

5. Easy Installation: The thermostat housing is typically a straightforward installation process, making it a convenient choice for DIYers and professional mechanics alike.

Cons:

1. Cost: Original equipment replacement parts can be more expensive than aftermarket options. However, the superior quality and fit may justify the additional cost for some consumers.

2. Limited Availability: Mercury Marine parts may not be as readily available as aftermarket alternatives, which could result in longer wait times for repairs or replacements.

3. No Upgrades or Additional Features: OEM parts do not usually come with additional features or upgrades compared to aftermarket alternatives.

Conclusion:

The Mercury 860258-C3 thermostat housing is an excellent choice for maintaining the performance and reliability of your Mercruiser 4.3 262 Vortec marine engine. While it may come with a higher price tag and limited availability compared to aftermarket alternatives, the OEM quality, improved engine performance, enhanced cooling system efficiency, and durability make it a worthwhile investment for boat owners seeking optimal engine functionality.

Recommendation:

If you prioritize OEM quality, optimal engine performance, and long-lasting durability, the Mercury 860258-C3 thermostat housing is the recommended choice for your Mercruiser 4.3 262 Vortec marine engine. However, if cost or availability is a concern, consider exploring aftermarket alternatives while keeping in mind the potential trade-offs in terms of fit, function, and additional features.

Details:

Shelf 28-12-1-B. I will do my best to resolve the issue. Part was removed from a MerCruiser 4.3 L Vortec Marine engine. Please look at all pictures and read entire before buying.

Look at pictures closely and ask any questions, I try to describe parts as best can. Mounting hardware is only included if it shown in the pictures. Condition: Good used condition. Thanks -Mike.

What you see in the pictures is what get.

part #: 860258c3 prices

  • $85.50-$91.00

specifications otsterndriv:

  • for models: Marine, Mercruiser
  • for makes: Mercury
  • mpn: 860258-c3
  • part type: Engine Thermostat Housing
  • country/region of manufacture: United States

payments otsterndriv:

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

offer otsterndriv:

  • quantity: 1
  • options: Ship-to-home
  • sold: 0
  • started: September 19, 2025
  • availability: In Stock

general otsterndriv:

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

seller otsterndriv:

  • rating: 99.2%
  • city: Huron, Ohio
  • # reviews: 108199

returns otsterndriv:

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

shipping otsterndriv:

  • service: FedEx Ground / FedEx Home Delivery, USPS Ground Advantage, USPS Priority Mail
  • carrier: FedEx, USPS
  • cost: $21.81
  • transit: 4-7 Days
  • type: Calculated
  • class: Standard, Expedited
for models: marine, mercruiser, for makes: mercury, part type: engine thermostat housing, country/region of manufacture: united states,
category: boat parts > sterndrive components, sku: 4063209899522604,
Mercury 860258-C3 Is Similar To:
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2 offers $85.50–$91.00 USD
  • Used. Offer #1 priced at $91.00 + $23.89 shipping estimate = $114.89* total. +$23.89 shipping
  • Used. Offer #2 priced at $85.50 + $23.89 shipping estimate = $109.39* total. +$23.89 shipping

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