L.A. SLEEVE FL1051 Cylinder Fan Cooled Ski Doo FT71-73 67.5MM 2.881 O.d.

( Brand: L.a. Sleeve ), ( Manufacturer Part Number: FL1051 ), ( Part Type: Fan Cylinder ), ( Country Of Origin: United States )

Review L.A. SLEEVE Cylinder Ski Doo Fan Cooled 67.5mm 2.881 Inch.d. La fits TNT 440

Introducing the L.A. Sleeve FL1051 Cylinder Ski-Doo Part for the 440 TNT Fan-Cooled FT71-73 engine. This high-performance component is specifically designed for Ski-Doo snowmobiles manufactured between 1971 and 1973 that utilize a fan-cooled 440 TNT engine.

The L.A. Sleeve FL1051 is an essential upgrade for those seeking improved engine durability and performance. This sleeve is made from a high-quality material, ensuring superior heat resistance and resistance to wear and tear. With a diameter of 67.5mm and an outside diameter of 2.881 inches, it is precision-engineered to fit perfectly in your engine's cylinder.

The sleeve's unique design features a 2-piece construction, allowing for easy installation and removal. This makes maintenance and engine rebuilds a more straightforward process. The sleeve's cylindrical shape is engineered to provide optimal compression and power transfer, ensuring smooth and consistent engine performance.

The L.A. Sleeve FL1051 is a direct replacement for the original OEM sleeve, ensuring a perfect fit and reliable operation. It is specifically designed for fan-cooled 440 TNT engines, which are known for their powerful output and high-performance capabilities. By upgrading to this high-quality sleeve, you can extend the lifespan of your engine and improve its overall performance.

Investing in the L.A. Sleeve FL1051 is a smart choice for any Ski-Doo enthusiast looking to get the most out of their snowmobile. It is a must-have component for those who demand high-performance and reliability from their engine. With its precise engineering, durable construction, and easy installation, this sleeve is a worthwhile investment for any Ski-Doo owner.

Pros and Cons of Buying a Ski-Doo FL1051 Cylinder (440 TNT Fan Cooled, FT71-73, 67.5mm, 2.881 O.D)

The Ski-Doo FL1051 cylinder is a popular choice for those looking to upgrade their snowmobile's engine. This specific model is a fan-cooled, 440 TNT engine with a 67.5mm bore and a 2.881-inch stroke. Here are some pros and cons to help you make an informed decision about purchasing this cylinder.

1. Increased Power: The Ski-Doo FL1051 cylinder offers increased power compared to the stock engine, resulting in better performance and more thrilling rides.

2. Durability: This cylinder is known for its durability and ability to handle heavy use, making it a great investment for those who use their snowmobiles frequently.

3. Improved Cooling: The fan-cooled design helps to maintain optimal operating temperatures, reducing the risk of engine damage and extending the life of the cylinder.

4. Excellent Customer Support: Ski-Doo offers excellent customer support, making it easier to get any necessary parts or technical assistance.

1. Cost: The Ski-Doo FL1051 cylinder can be quite expensive, especially when compared to the cost of a stock engine.

2. Installation: Installing a new cylinder can be a complex process, requiring specialized tools and knowledge. It may be necessary to hire a professional to ensure proper installation.

3. Compatibility: This cylinder is specifically designed for Ski-Doo snowmobiles and may not be compatible with other brands or models.

4. Weight: The increased size and durability of the cylinder can add weight to the snowmobile, affecting its overall performance.

The Ski-Doo FL1051 cylinder offers increased power, durability, and improved cooling, making it a great investment for those who use their snowmobiles frequently and want better performance. However, the high cost, complex installation process, potential compatibility issues, and added weight may be drawbacks for some. Ultimately, the decision to purchase this cylinder depends on your specific needs and budget.

If you are looking for increased power and durability in your snowmobile and have the budget for it, the Ski-Doo FL1051 cylinder is a great choice. However, if you are on a tight budget or prefer a more straightforward installation process, you may want to consider other options or wait for a sale or discount on the Ski-Doo cylinder. Regardless of your decision, make sure to do your research and consult with a professional if you have any doubts or concerns.

Details:

Re-stock fee applies. IMPORTANT: The Inside Diameter of the Sleeve is Semi Finished and must me bored honed after installation. This Replacement Cylinder Sleeve is manufactured by L.A. Order quantity required.

PORT height S: Exhaust Top Sleeve to Port 1.585, Intake 2.550. Re-install the new Sleeve, match and chamber ports, then bore hone Sleeve to fit piston. New Sleeve, Old inventory.

THIS SLEEVE FEATURES 2.881 OUTSIDE DIAMETER. CYLINDER SLEEVE FOR SKI DOO SNOWMOBILE ENGINE 440 TNT 436cc FAN COOLED TWIN 1971-73. This is a replacement Sleeve with the ports CNC machined to exacting tolerances match original. Picture is for reference and the actual Sleeve.

part #: fl1051 price

• $59.95

specifications enginesnowmobile:

• for models: Tnt, 440
• for makes: Ski-doo
• brand: L.a. Sleeve
• mpn: Fl1051
• part type: Fan Cylinder
• country of origin: United States

offer enginesnowmobile:

• quantity: 4
• sold: 0
• availability: In Stock
• started: January 21, 2026
• options: Ship-to-home

shipping enginesnowmobile:

• service: Standard
• class: Standard
• cost: $13.95
• type: Fixed
• transit: 3-7 Days

seller enginesnowmobile:

• rating: 100.0%
• # reviews: 4789
• city: So. California

general enginesnowmobile:

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

returns enginesnowmobile:

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

payments enginesnowmobile:

• wallet: Apple-pay
• credit card: Mastercard
• other

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