Comet 108EXP Clutch
03-217504 (MFG #: 217504A)
$584.20
Sale price
$584.20
Regular price
$599.99
Sale
-2%
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Comet 108EXP Clutch for Polaris Indy SuperTrak 488 Snowmobile
Comet 108EXP Clutch for Polaris Indy SuperTrak 488 Snowmobile
$584.20
Sale price
$584.20
Regular price
$599.99
Sale
-2%
SKU:03-217504
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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 Indy SuperTrak 488 Snowmobile (1989-1992)
The Polaris Indy SuperTrak 488, produced from 1989 to 1992, was a popular snowmobile known for its reliability and performance on trails. It consistently featured a robust 488cc fan-cooled twin-cylinder engine, providing ample power for most riders. This engine, shared with other Indy models of the era, was recognized for its "consistent, reliable 80-range horsepower," with specific variants like the 1991 Indy 500 (also 488cc) reporting around 72-76 hp. Throughout its production from 1989 to 1992, the Indy SuperTrak 488 maintained its core 488cc fan-cooled engine without significant mid-cycle generation changes. While the "Indy Trail SuperTrak" and "Indy SuperTrak 488" were common designations, a "Polaris Indy Trail Deluxe 488cc" variant was also available in 1992, indicating a trim option rather than a platform overhaul. This fan-cooled engine, built by Fuji, was praised for its longevity, though a known characteristic was a tendency for overheating in warmer conditions or at slower speeds due to exhaust pipe proximity to the intake fan. This was a design trait, not a change within this period. FAQ:
Q: How can I ensure this part fits my Polaris Indy SuperTrak 488?
A: Please use the year and model selector at the top of the page to confirm specific compatibility for your snowmobile.
Maintenance
| Component | Interval | Details |
| Oil Filter | 800 km or 25 hours or 1 month (initial break-in); then 1,600 km or 100 hours or annually | Some schedules suggest 800 km or 6 months. Change prior to summer storage. |
| Drive Belt | 800 km or 6 months | Inspect and adjust. Replace as needed. Inspect and clean clutches (drive and driven) at the same intervals. |
| Spark Plug | 3,200 km or 2 years | Inspect and replace as needed. Generally replace before the season. Carry spares. |
| Air Filter | Before every ride (inspection); 25-50 hours (normal conditions) | Inspect and clean or replace as needed. More frequently in dusty or muddy environments. For snowmobiles, inspect and replace during initial break-in service (25 hours/800 km). |
| Coolant | Before every ride (level); annually (pressure); every 5 years (complete replacement) | Check level before every ride. Test strength seasonally. Pressure test yearly. Completely drain and refill every five years. |
These intervals are general guidelines. For precise maintenance schedules, consult the official owner's manual for your specific model and year.