fits model: Mxz, Gsx, Gtx, 800, Summit. make: Skidoo. year: 2003–2007.

( Manufacturer Part Number: 420854455 ), ( Part Type: Valve )
The 2003-2007 Skidoo MXZ Summit GSX/GTX 800 Valve, with the part numbers 420854455 and 420854465, is a high-performance snowmobile engine that has stood the test of time. This engine is a powerful workhorse, capable of delivering impressive torque and speed, making it a favorite among snowmobile enthusiasts and professionals alike.
The 800 Valve engine is a significant upgrade from its predecessors. It features a larger displacement, which means it can burn more fuel and air, resulting in more power. The valve design allows for better intake and exhaust flow, improving engine efficiency and power delivery.
This engine is known for its durability and reliability. It is built with high-quality materials, including a forged crankshaft and high-strength connecting rods. The engine also has a sophisticated cooling system, which includes a liquid-cooled cylinder head and a water pump, to ensure it can handle long hours of use in the harsh winter conditions.
The Skidoo MXZ Summit GSX/GTX 800 Valve engine is also known for its versatility. It can be found in various Skidoo snowmobiles, including Summit and Expedition models. The engine is easy to maintain and has a wide range of aftermarket parts available, making it a popular choice for customization and tuning.
In summary, the 2003-2007 Skidoo MXZ Summit GSX/GTX 800 Valve engine is a high-performance, reliable, and versatile powerplant that has stood the test of time in the snowmobile world. It is a must-have for any serious snowmobiler looking for power, durability, and versatility.
Pros of buying a 2003-2007 Skidoo MXZ Summit GSX/GTX 800 (models 420854455 and 420854465):1. Reliability: Skidoo is a well-known brand in the snowmobile industry, and these models have a reputation for being reliable and durable.
2. Power: With an 800cc twin-cylinder engine, these snowmobiles have plenty of power for tackling various terrains and snow conditions.
3. Versatility: The MXZ Summit models are designed for trail riding, but they can also handle off-trail adventures.
4. Comfort: These models come with comfortable seats and ergonomic controls, making them great for long rides.
5. Aftermarket Support: There is a wide range of aftermarket parts and accessories available for these models, making it easy to customize them to your liking.
Cons of buying a 2003-2007 Skidoo MXZ Summit GSX/GTX 800 (models 420854455 and 420854465):1. Age: These models are older, so they may have some wear and tear, and some parts may be harder to find.
2. Maintenance Costs: Older models may require more frequent maintenance, which can add up over time.
3. Technology: These models may not have some of the newer features that newer models have, such as electronic throttle control or Bluetooth connectivity.
4. Fuel Efficiency: Older models may not be as fuel-efficient as newer models.
Conclusion:If you're looking for a reliable, powerful, and versatile snowmobile that can handle various terrains and snow conditions, the 2003-2007 Skidoo MXZ Summit GSX/GTX 800 (models 420854455 and 420854465) could be a great choice. However, be aware of the potential maintenance costs and the lack of some newer features. If you're willing to invest in maintenance and don't mind missing out on some of the latest technology, these models could be a great fit for you.
Recommendation:If you're considering buying a 2003-2007 Skidoo MXZ Summit GSX/GTX 800, we recommend doing your research and inspecting the model thoroughly. Look for any signs of wear and tear, and make sure all the parts are in good working order. It's also a good idea to budget for potential maintenance costs. If you're able to find a well-maintained model at a reasonable price, it could be a great investment for your snowmobiling adventures.
It is in good condition, light scuffs and comes with a bellow spring. It is clean and ready to bolt on.