My Garage
Select a ride to guarantee fitment.
My Garage
Add your vehicles to your garage. Several features will then be available to facilitate your searches.
- Store vehicles in your garage
- Easily find guaranteed fit products and accessories
- Get product recommendations
Available Online
Free shipping on orders over $99
Standard Fulfillment: -
Expedited Fulfillment: -
Lowest Price Guaranteed
Fast Shipping
Easy Returns
Description
Comet's 8-inch 108 EXP is designed for high horsepower applications up to 150 HP which exceeds the limits of the well-known 7.5 inch Comet 102C. Specifications on the EXP are the same as the familiar 108C. Comet's open faced design has delivered unsurpassed reliability, easy servicing and unlimited tuning capabilities for decades on both stock sleds and on mods. The EXP will handle engagement speeds up to 5000 RPM.
FEATURES
- Wider roller for increased bearing area. Increases durability
- Larger diameter floating cam arm bolt for increased wear resistance
- Uses same tuning parts as 108C
- Built to handle high horsepower engines
- Continual/consistent smooth shifting, after hours of use
- Tried and tested in high horsepower machines
- Weights and springs are not included
Technical Specifications
- MFG. Part Number 217504A
Vehicle Information
Ski-Doo GTX 600 Snowmobile (2005-2009)
The Ski-Doo GTX 600 series, produced from 2005 to 2009, is a popular touring snowmobile known for its comfortable ride and reliable performance. Throughout these years, it was primarily powered by a 594.4cc liquid-cooled, 2-stroke engine, often referred to as the 600 H.O. SDI, delivering approximately 120 horsepower. These models were generally built on the robust REV chassis, providing a stable and enjoyable experience on the trails. A notable evolution occurred in 2009 with the introduction of the 600 H.O. E-TEC engine for some GTX models, such as the GTX 600 E-TEC Limited Edition. While maintaining a similar displacement and horsepower, the E-TEC system represented a significant technological advancement, offering improved fuel efficiency and cleaner emissions through direct fuel injection, compared to the semi-direct injection of the earlier SDI engine. This change marked a key update in the powertrain technology for the series. FAQ:
Q: How can I be sure this part fits my Ski-Doo GTX 600?
A: To guarantee compatibility, please use our year and edition selector at the top of the page. This will ensure you find parts specifically designed for your snowmobile. Q: Were there different versions of the GTX 600 between 2005 and 2009?
A: Yes, there were different trims and engine technologies introduced during this period. Always refer to our year and edition selector to identify the exact specifications for your model.
Maintenance
| Component | Interval | Details |
| Injection Oil | Before every ride | Check reservoir level and fill as needed. Never run out of injection oil. |
| Drive Belt | Inspection: every 50 hours. Replacement: 2,500 to 5,000 km or annually. | Inspect for damage (separation, edge cord, glazing, narrowing). Replace if damaged or at the start of each season. |
| Spark Plug | Annually | Inspect or replace during annual service, or as part of troubleshooting engine issues. |
| Air Filter | Inspection: every 25 to 50 hours | Replace as needed. More frequent inspection/replacement in dusty/muddy conditions. Replace immediately if soaked. |
| Coolant | Check: before every ride. Replacement: every 2 years. | Check level when cold. Inspect hoses for leaks. |