SPI 09-812N Standard Piston GP292 73MM

( Brand: Spi ), ( Manufacturer Part Number: 09-812N ), ( Part Type: Piston ), ( Country Of Origin: Taiwan )

Review SPI Standard Bore Piston Kits Yamaha Model's fits 1972–1973

Introducing the SPI 09-812N Standard Piston, specifically designed for the Yamaha GP292 outboard motor models from 1972 to 1973. This piston is engineered to meet the SPIs 73mm bore size, making it an ideal replacement for worn-out or damaged components.

The SPI 09-812N piston is manufactured using high-quality materials, ensuring durability and reliability. The piston skirt is designed with a precise fit to minimize blowby and optimize combustion efficiency. The piston crown is engineered with an optimal dome shape to provide maximum power output.

The piston ring package includes two compression rings and one oil control ring. The compression rings are designed with a chrome molybdenum alloy, providing excellent strength and wear resistance. The oil control ring is engineered with a groove design to ensure proper oil control and prevent oil leaks.

The piston pin is machined from high-strength steel and is precisely fitted into the piston. The piston pin retaining clips are included with the piston kit for easy installation.

The piston top ring groove is precision machined to ensure proper fitment of the top ring. The piston also includes a piston pin retaining clip and a piston pin.

The SPI 09-812N Standard Piston is designed to provide superior performance and longevity for your Yamaha GP292 outboard motor. It is important to note that proper installation and maintenance are crucial to ensure optimal engine performance.

In conclusion, the SPI 09-812N Standard Piston for Yamaha GP292 outboard motors offers excellent durability, reliability, and power output. The piston is engineered with precision and high-quality materials to meet the specifications of the SPIs 73mm bore size for these models. With the included piston ring package, piston pin, and piston pin retaining clips, this piston kit provides a complete solution for your engine needs.

Buying a SPI 09-812N standard piston for a Yamaha GP292 with a 73mm bore (model years 1972-1973) can be a consideration for those looking to upgrade or replace their engine components. Here are some potential pros and cons to help you make an informed decision:

1. Improved Performance: A new piston can lead to improved engine performance by ensuring a proper seal, reducing compression leakage, and providing better cylinder wall contact. This can result in increased power output and better fuel efficiency.

2. Durability: A high-quality piston can last longer than a worn-out or damaged one. This can save you money in the long run by reducing the need for frequent engine rebuilds or replacements.

3. Better Compatibility: The SPI 09-812N piston is specifically designed for the Yamaha GP292 engine with a 73mm bore, ensuring a precise fit and optimal engine performance.

1. Cost: Replacing a piston can be an expensive proposition, especially if you opt for a high-performance aftermarket piston or if you need to replace multiple pistons at once.

2. Installation Complexity: Installing a new piston can be a complex and time-consuming process that requires specialized tools and knowledge. It is recommended that you have the piston installed by a professional mechanic to ensure proper installation and prevent any potential damage to the engine.

3. Potential Performance Trade-offs: While a new piston can lead to improved performance, it may also result in trade-offs such as increased engine noise or vibration. This can be a consideration for those who value a quieter riding experience.

In conclusion, the decision to buy a SPI 09-812N standard piston for a Yamaha GP292 with a 73mm bore depends on your specific needs and priorities. If you value improved engine performance, durability, and compatibility, then this may be a worthwhile investment. However, if you are concerned about the cost, installation complexity, or potential performance trade-offs, then you may want to consider other options or wait until the piston becomes necessary. Ultimately, it is recommended that you consult with a professional mechanic to help you weigh the pros and cons and make an informed decision based on your individual circumstances.

Details:

OEM piston kits. Manufactured by SPI. Made in Taiwan. Piston weight compatible with original piston.

Pistons are for standard bore size 73.00mm. Includes: 2 pistons, ring sets, wrist pins cir clips. All pistons, rings, pins and cir clips are manufactured to OEM specifications. Compatible with Yamaha model's below: 1972 GP292.

part #: 09812n prices

• $27.95-$79.99

specifications enginesnowmobile:

• for makes: Yamaha
• for years: 1972-1973
• brand: Spi
• mpn: 09-812n
• part type: Piston
• country of origin: Taiwan

payments enginesnowmobile:

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

seller enginesnowmobile:

• rating: 99.9%
• # reviews: 416865
• city: Suamico, Wisconsin

shipping enginesnowmobile:

• service: Standard
• transit: 3-6 Days
• type: Fixed
• cost: $0.00
• class: Standard

offer enginesnowmobile:

• sold: 0
• quantity: 1
• options: Ship-to-home
• availability: In Stock
• started: May 10, 2026

returns enginesnowmobile:

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

general enginesnowmobile:

• Snowmobile Parts > Engines Components > Snowmobile Engine Components
• condition: New

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