fits model: D2.

( Brand: Lycoming ), ( Manufacturer Part Number: 69841 ), ( Part Type: Ring Piston Pin )
The O-290 Lycoming 290 D2 Piston Rings and Pins (Part No. 69841) are essential components for the smooth operation and longevity of your O-290 Lycoming engine. These high-quality replacement parts are designed to ensure optimal engine performance, efficiency, and reliability.
The piston rings in this set include the compression ring, oil control ring, and two oil scraper rings. The compression ring seals the combustion chamber, preventing the loss of combustion gases and maintaining proper compression. The oil control ring helps regulate the oil consumption by sealing the oil in the crankcase and preventing it from entering the combustion chamber. The oil scraper rings, on the other hand, help keep the engine's piston surfaces clean by scraping away excess oil and debris.
The piston pins, also included in this set, serve as a critical connection between the piston and the connecting rod. They are engineered to withstand high loads and temperatures, ensuring a secure and stable piston movement within the engine.
Made from high-grade materials, these O-290 Lycoming 290 D2 Piston Rings and Pins are designed to provide excellent resistance to wear, corrosion, and heat. They are carefully manufactured to ensure precise fit and function, ensuring smooth engine operation and minimizing the risk of engine damage.
In conclusion, the O-290 Lycoming 290 D2 Piston Rings and Pins (Part No. 69841) are essential components for maintaining the health and performance of your O-290 Lycoming engine. By replacing worn or damaged parts with these high-quality replacements, you can ensure your engine continues to run smoothly and efficiently for years to come.
Pros of buying O-290 Lycoming 290 D2 Piston Rings, Pins (Part Number: 69841):1. Quality: These piston rings and pins are manufactured by a reputable company, ensuring high-quality materials and craftsmanship.
2. Fit and Function: They are designed specifically for O-290 Lycoming 290 D2 engines, ensuring proper fit and function.
3. Availability: These parts are widely available, making it easy to find and purchase them.
4. Cost-effective: Compared to OEM parts, these aftermarket piston rings and pins can offer significant savings.
Cons of buying O-290 Lycoming 290 D2 Piston Rings, Pins (Part Number: 69841):1. Lack of Warranty: Aftermarket parts may not come with the same warranty as OEM parts.
2. Potential for Lower Performance: While aftermarket parts should meet or exceed original specifications, some may not deliver the same performance as OEM parts.
3. Unknown History: Aftermarket parts may have been used or rebuilt, potentially reducing their lifespan.
Conclusion and Recommendation:When considering the purchase of O-290 Lycoming 290 D2 Piston Rings, Pins (Part Number: 69841), it's essential to weigh the pros and cons. If cost-effectiveness is a priority, aftermarket parts are an excellent option. However, if you value warranty coverage and performance, OEM parts may be more suitable. Ultimately, the choice depends on your specific needs, budget, and comfort level with aftermarket parts. If you're unsure, consult a professional mechanic or the engine manufacturer for advice.
Quantity 4 O-290 D2 pistons approx 100 hours since new I bored my cases and went 320.