8947A55 MERCURY Cylinder Block Crankcase Set Mariner

Review MERCURY Genuine Oem 90hp Cylinder Block Crankcase Set Matched for MARINER

The Mercury 8947A55 Mariner 90HP Cylinder Block Crankcase Set is a vital component for the efficient operation of your Mercury 90HP outboard engine. This crankcase and cylinder block set is specifically designed to provide a robust and durable foundation for the engine's moving parts.

The cylinder block is the lower part of the engine that houses the cylinders, pistons, and connecting rods. It is a critical component that must withstand the immense pressure generated during engine operation. Mercury's 8947A55 Mariner 90HP Cylinder Block is cast from high-strength aluminum alloy, ensuring superior strength and longevity. The block features precision-machined cylinder bores, which provide a perfect fit for the pistons and enable optimal engine performance.

The crankcase, on the other hand, is the upper part of the engine that contains the crankshaft, main bearings, and oil pump. It is responsible for housing the crankshaft and protecting it from external damage. Mercury's 8947A55 Mariner 90HP Crankcase is also constructed from high-strength aluminum alloy, providing excellent durability and resistance to corrosion. The crankcase features large oil galleries, which ensure efficient oil flow to the engine's moving parts.

Both the cylinder block and crankcase are designed to meet Mercury's stringent quality standards, ensuring reliable and consistent performance. This set includes all necessary gaskets and hardware for installation, making it a complete solution for engine rebuilds or replacement.

In summary, the Mercury 8947A55 Mariner 90HP Cylinder Block Crankcase Set is a high-quality, durable, and reliable solution for your Mercury 90HP outboard engine. It is engineered to provide superior strength, excellent durability, and efficient engine performance, making it an essential investment for boat owners and operators who demand the best from their engines.

The Mercury 8947A55 Mariner 90HP Cylinder Block Crankcase Set is a replacement part for Mercury Outboard engines. This set includes both the cylinder block and crankcase, which are essential components of the engine. Here are some potential pros and cons of buying this part:

1. OEM Part: This is an Original Equipment Manufacturer (OEM) part, which means it is manufactured by the same company that originally made the part for the engine. Using an OEM part can ensure proper fit and function, as well as potentially providing longer engine life.

2. Complete Kit: This set includes both the cylinder block and crankcase, which can save time and money compared to buying each part separately.

3. Improved Performance: If the engine has worn or damaged cylinder block or crankcase, replacing them can improve the overall performance and efficiency of the engine.

1. Cost: Replacing both the cylinder block and crankcase can be a significant investment, especially for older engines.

2. Labor Cost: Installing a new cylinder block and crankcase requires specialized tools and knowledge, which can add to the overall cost.

3. Availability: Depending on the specific engine model and year, availability of this part may be limited, which could lead to longer wait times for repairs.

The Mercury 8947A55 Mariner 90HP Cylinder Block Crankcase Set is a high-quality OEM part that can improve the performance and efficiency of a Mercury Outboard engine. However, the significant cost and potential labor costs associated with installing the part should be considered before making a purchase. Ultimately, if the engine is in need of a replacement cylinder block and crankcase, this set is a reliable option for ensuring proper fit and function.

Before purchasing the Mercury 8947A55 Mariner 90HP Cylinder Block Crankcase Set, it's important to consider the overall condition and age of the engine. If the engine is relatively new and only requires routine maintenance, it may be more cost-effective to stick with regular service and repairs. However, if the engine is older or has significant wear and damage, replacing the cylinder block and crankcase may be the best long-term investment. It's also recommended to compare prices from multiple suppliers to ensure the best possible price.

Details:

specifications watercraftimp:

• for models: Mariner
• brand: Mercury
• mpn: 8947a55
• type: Engine

seller watercraftimp:

• city: lake havasu city, arizona
• rating: 99.5%
• # reviews: 31639

payments watercraftimp:

• credit card: discover
• other
• wallet: paypal

shipping watercraftimp:

• type: fixed
• service: usps priority mail
• transit: 5-12 days
• carrier: usps
• class: expedited

returns watercraftimp:

• policy: returns accepted
• paid by: buyer
• time: 30 days

general watercraftimp:

• category: Watercraft Parts > Engines > Impellers Components

offer watercraftimp:

• availability: in stock
• in stock #: 5
• options: ship-to-home
• sold #: 15
• prices: $225.00–$1049.99
• item condition:
  • Used
  • For parts or not working
  • New other (see details)
• started: august 21, 2025