BARR MC-20-55730 Block Plate

( Brand: Barr ), ( Manufacturer Part Number: MC-20-55730 ), ( Part Type: Block Plate )

Review BARR Block Off Plate fits MERCRUISER SS

Barr Mc-20-55730 Mercruiser Block Plate

The Barr Mc-20-55730 Mercruiser Block Plate is a crucial component designed specifically for Mercruiser engines. This plate is engineered to provide optimal cooling performance for your engine by ensuring efficient water circulation.

Made from high-quality materials, this block plate features a durable and corrosion-resistant cast iron construction. Its precise dimensions of 10.5 inches by 12 inches allow it to perfectly fit and replace the original block plate on select Mercruiser engines.

One of the key benefits of this Barr block plate is its ability to accommodate various cooling system configurations. It includes pre-drilled holes for various cooling system fittings, ensuring a seamless installation process. This versatility makes it suitable for a wide range of applications, enhancing its value for engine enthusiasts and professionals.

The surface of the block plate is smooth and engineered for optimal water flow. The plate's design ensures that water effectively circulates throughout the engine block, maintaining an optimal operating temperature for the engine. This not only improves engine performance but also extends the lifespan of the engine by preventing overheating.

Additionally, the Barr Mc-20-55730 Mercruiser Block Plate comes with a gasket to ensure a proper seal between the plate and the engine block. This gasket is made from a high-temperature material, ensuring a secure seal that can withstand the extreme temperatures and pressures within the engine.

In summary, the Barr Mc-20-55730 Mercruiser Block Plate is a robust and essential upgrade for Mercruiser engines. Its durable cast iron construction, precise dimensions, accommodating design, and effective water flow make it a valuable investment for those seeking improved cooling performance and engine longevity.

The Mercruiser Barra Outdrive Block Plate, model number MC-20-55730, is a crucial component of the lower unit assembly in boats propelled by Mercruiser engines. This plate connects the engine to the drive shaft, transmitting power to the propeller. In this discussion, we will weigh the pros and cons of purchasing this specific Mercruiser Barra outdrive block plate.

1. OEM (Original Equipment Manufacturer) Part: This part is manufactured by Mercruiser, ensuring compatibility, reliability, and a proper fit.

2. High-Quality Material: The block plate is constructed from durable materials like cast iron or aluminum, which can withstand the rigors of marine use.

3. Improved Performance: A new block plate can lead to enhanced engine performance, as it may address issues like leaks or worn-out components.

4. Enhanced Safety: A functioning block plate is essential for the safe operation of the boat, as it plays a role in maintaining the overall structural integrity of the lower unit.

5. Warranty: A new Mercruiser block plate comes with a manufacturer's warranty, offering peace of mind and potential cost savings.

1. Cost: A new Mercruiser MC-20-55730 block plate can be a significant investment, especially for boat owners with older vessels or limited budgets.

2. Availability: Depending on the location and availability, it may take some time to order and receive the new part.

3. Installation Complexity: Installing a new block plate can be a challenging process, requiring specialized tools and technical expertise.

4. Potential for Unforeseen Issues: Sometimes, replacing a single component can lead to the discovery of additional issues that may require further repairs or replacements.

Ultimately, the decision to purchase a new Mercruiser MC-20-55730 block plate depends on several factors, including your budget, the condition of your boat, and your technical abilities. If you prioritize safety, performance, and the peace of mind offered by a manufacturer's warranty, investing in a new block plate may be the best choice. However, if cost is a concern, you may want to consider alternative solutions, such as rebuilding the existing block plate or searching for used components.

If you decide to proceed with purchasing a new Mercruiser MC-20-55730 block plate, ensure you obtain it from a reputable dealer or directly from Mercruiser to ensure authenticity and quality. Additionally, consider having the part installed by a professional to minimize any potential complications.

Details:

For use with fresh water cooling. For riser mounting flange with square bolt pattern, 2-13/16 x 3-1/16 centers. Separates engine antifreeze from raw water. Stainless steel block off plate.

For use with 60426A1, 76351A1 and 76771A2 Mercruiser risers in fresh water cooled applications. Replaces Mercruiser 55730.

part #: mc2055730 prices

• $7.95-$26.99

specifications exhaussyste:

• for models: Ss, Mercruiser
• brand: Barr
• mpn: Mc-20-55730
• part type: Block Plate

seller exhaussyste:

• city: Aransas Pass, Texas
• rating: 0.0%
• # reviews: 0

returns exhaussyste:

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

offer exhaussyste:

• sold: 0
• quantity: 1
• options: Ship-to-home
• availability: In Stock
• started: November 24, 2025

shipping exhaussyste:

• class: Standard, Economy
• type: Calculated
• transit: 5-11 Days
• carrier: USPS, UPS, FedEx
• cost: $11.55
• service: USPS Ground Advantage, UPS Ground Saver, FedEx Ground Economy, UPS Ground

general exhaussyste:

• condition: New
• Boat Parts > Inboard Engines Components > Exhaust Systems

payments exhaussyste:

• other
• wallet: Paypal
• credit card: Discover

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