Comet 108EXP Clutch
03-217504 (MFG #: 217504A)
$584.20
Sale price
$584.20
Regular price
$599.99
Sale
-2%
Skip to product information
Comet 108EXP Clutch for Polaris Long Track 440 Snowmobile
Comet 108EXP Clutch for Polaris Long Track 440 Snowmobile
$584.20
Sale price
$584.20
Regular price
$599.99
Sale
-2%
SKU:03-217504
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
Polaris Long Track 440 Snowmobile (1983-1989)
The Polaris Long Track 440, produced from 1983 to 1989, was a robust utility snowmobile. It primarily featured a 432cc fan-cooled twin-cylinder engine, with some 433cc versions appearing in 1989. Designed for reliability and versatility, this model was a popular choice for winter work and recreation. While exact horsepower figures vary, similar engines from that era typically produced around 50 horsepower.
Over the years, the Long Track 440 saw notable evolutions. Engine model numbers changed, indicating internal revisions. By 1987, the "Long Track Reverse/Low Range" trim was introduced, offering reverse and a low range for enhanced utility. In 1988, the 432cc engine was improved to deliver 18% more power to its hi-low range transmission, also including reverse. The track length was generally 148 inches. Q: Is this product compatible with my Polaris Long Track 440?
A: To ensure perfect compatibility, please use our year and model selector at the top of the page.
Maintenance
| Component | Interval | Details |
| Engine Oil Filter | Not applicable | 2-stroke engines from this era do not use a conventional engine oil filter. Oil is either pre-mixed with fuel or injected directly. A fuel filter or oil injection line filter may exist and require inspection. |
| Drive Belt | Inspect before each ride and periodically. Replace every 1,600 to 3,200 km or every few seasons. | Check for wear, cracks, fraying, or glazing. Replace if any signs of damage are present or if performance degrades. |
| Spark Plug | Inspect/Clean annually or every 800 km. Replace annually or every 1,600 to 3,200 km. | Check for fouling, wear, or incorrect gap. Replace sooner if performance issues arise. |
| Air Filter | Inspect/Clean annually or every 800 km. | Check for cleanliness and obstructions. Clean or replace the filter element as needed, more frequently in dusty conditions. |
| Coolant | Inspect level before each ride and periodically. Inspect condition annually. Replace every 2-3 years. | This model is likely liquid-cooled. Check for clarity and proper freeze protection. Inspect hoses and clamps. |
| General Lubrication | Every 1,600 km or annually. | Grease suspension pivots, cables, and other fittings to ensure proper function and prevent wear. |
The maintenance intervals below are based on general practices for vintage 2-stroke snowmobiles. For precise recommendations, please consult your model's official owner's manual.