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Description
OEM-quality replacement suspension spring.
Technical Specifications
- MFG. Part Number 04-378
Vehicle Information
Polaris Indy Trail 488 Snowmobile (1985-1999)
The Polaris Indy Trail 488, produced from 1985 to 1999, is a classic trail snowmobile known for its reliable 488cc fan-cooled twin engine. This model provided smooth and consistent power, making it a popular choice for recreational trail riding throughout its production run. The core 488cc fan-cooled twin engine remained largely consistent across all model years. While various trims like the Indy Trail Deluxe, SP, Touring, WideTrak LX, and RMK were offered, the fundamental engine design did not undergo significant generation changes. A notable characteristic of the fan-cooled 488cc engines from 1986 onwards was a tendency for overheating in certain conditions, often linked to the exhaust pipe's proximity to the intake fan. The "Evolved body style" seen on some other Indy models was not explicitly applied to the Indy Trail 488. Q: How do I find parts specific to my Polaris Indy Trail 488?
R: To ensure perfect compatibility, please use the year and model selector at the top of the page.
Maintenance
| Component | Interval | Details |
| Engine Oil and Filter | First 25 hours or 800 km (break-in); then every 50 to 100 hours or 1 600 km, or yearly. | Always change the filter when changing the oil. |
| Drive Belt | Inspect every 800 km or 6 months or 50 hours. Replace as needed. | Replace if signs of wear (cracks, fraying, slipping). General recommendation for replacement is every 1 600 km to 3 200 km, depending on conditions. |
| Spark Plugs | Inspect regularly. Replace yearly or before the season. | Use recommended spark plugs with proper gap and torque. |
| Air Filter | Inspect and clean before every ride or every 25 hours / 800 km or yearly. | Replace as necessary. Ensure proper installation. |
| Coolant | Check level daily or before every ride. Inspect strength seasonally, pressure test yearly. Replace every five years (some sources suggest two years). | Use Polaris Antifreeze 50/50 Premix or DEX-COOL®-approved 50/50 premixed antifreeze. |