MERCURY 22-864621 Mpi Vortec Engine Water Coolant Line Tube 5.0 V8 Manifold

( Manufacturer Part Number: 22-864621 ), ( Part Type: Line Engine Tube Manifold ), ( Country Of Origin: United States )

Review MERCURY 5.0 Mpi V8 Vortec Engine Water Coolant Line Tube Manifold fits MERCRUISER MARINE 305

Introducing the Mercury 22-864621, a high-performance water coolant line tube manifold specifically designed for the Mercruiser 5.0 MPI 305 V8 Vortec marine engine. This manifold is an essential component of your engine cooling system, ensuring optimal engine temperature and longevity.

Crafted with precision and durability, the Mercury 22-864621 manifold boasts a robust design that can withstand the harsh marine environment. The coolant tubes are made of heavy-duty, corrosion-resistant material to prevent leaks and ensure reliable operation. Each tube is precisely routed for efficient coolant flow, and the manifold is designed to integrate seamlessly with other engine components.

The Mercury 22-864621 manifold utilizes a modern, modular design that simplifies installation and maintenance. The tubes are easy to access for routine inspections or repairs, and the design allows for the use of standard coolant hoses and fittings. This not only saves you time and money but also ensures that your engine is always running at its best.

The manifold is specifically engineered for the Mercruiser 5.0 MPI 305 V8 Vortec marine engine, which is known for its impressive power output and efficiency. By ensuring that the engine stays cool under all conditions, the Mercury 22-864621 manifold helps to maintain peak engine performance and longevity.

In summary, the Mercury 22-864621 water coolant line tube manifold is a must-have component for your Mercruiser 5.0 MPI 305 V8 Vortec marine engine. Its robust design, efficient coolant flow, and easy installation make it a reliable and cost-effective solution for keeping your engine running at its best in even the most demanding marine conditions.

Mercury 22-864621, also known as the Mercruiser 5.0 MPI 305 V8 Vortec marine engine water coolant line tube manifold, is an essential component for maintaining the cooling system of your marine engine. Here are some pros and cons that might help you decide on whether to buy this part:

1. High-quality material: The water coolant line tube manifold is made of durable materials, ensuring long-lasting performance.

2. Leak-free design: The manifold's design minimizes the risk of coolant leaks, which can save you from costly repairs and engine damage.

3. Easy installation: The part comes with clear installation instructions, making the process straightforward for DIY enthusiasts.

4. Improved cooling efficiency: Upgrading to a new water coolant line tube manifold can enhance the cooling efficiency of your engine, leading to better performance and extended engine life.

1. Cost: Replacing a water coolant line tube manifold can be a significant investment, especially for budget-conscious boat owners.

2. Complexity: Installing this part might be challenging for some boat owners due to the intricacy of the marine engine cooling system.

3. Availability: Depending on your location and the availability of the part from local suppliers, it might take some time to receive the replacement manifold.

In conclusion, the Mercury 22-864621 water coolant line tube manifold offers several advantages, including improved cooling efficiency, durability, and leak-free design. However, the cost and installation complexity might be a concern for some boat owners. If you prioritize the long-term performance and reliability of your marine engine, then investing in a new water coolant line tube manifold could be a worthwhile investment. Alternatively, you can consider having a professional marine mechanic install the part to ensure a hassle-free experience.

Details:

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

Please look at all pictures and read entire before buying. What you see in the pictures is what get. Thanks -Mike. Shelf 28-4-7-B.

Part was removed from a MerCruiser 5.0 MPI 305 V8 GM Vortec Marine Engine.

part #: 22864621 prices

• $52.00-$85.00

specifications otsterndriv:

• for models: Marine, 305, Mercruiser
• for makes: Mercury
• mpn: 22-864621
• part type: Line Engine Tube Manifold
• country of origin: United States

shipping otsterndriv:

• cost: $17.25
• type: Calculated
• service: USPS Ground Advantage, USPS Priority Mail, FedEx Ground / FedEx Home Delivery, USPS Priority Mail Express
• transit: 3-8 Days
• carrier: USPS, FedEx
• class: Standard, Expedited

offer otsterndriv:

• availability: In Stock
• started: March 18, 2026
• options: Ship-to-home
• quantity: 1
• sold: 0

payments otsterndriv:

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

seller otsterndriv:

• city: Huron, Ohio
• rating: 99.6%
• # reviews: 119813

returns otsterndriv:

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

general otsterndriv:

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

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