Parts Unlimited Idler Wheel
1039-1697 (MFG #: 04-11677)
$41.95
Sale price
$41.95
Regular price
$41.95
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Parts Unlimited Idler Wheel for Polaris Custom II 398 Snowmobile
Parts Unlimited Idler Wheel for Polaris Custom II 398 Snowmobile
$41.95
Sale price
$41.95
Regular price
$41.95
SKU:1039-1697
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Description
Technical Specifications
- MFG. Part Number 04-11677
Vehicle Information
Polaris Custom II 398 Snowmobile (1974)
The 1974 Polaris Custom II 398 is a classic snowmobile from Polaris's lineup, known for its robust design and performance in its era. This model was primarily offered with a 398cc, 2-cylinder engine, though a more powerful 530cc, 2-cylinder option was also available for the Custom II. While specific horsepower figures for the 398cc engine are not readily available, Polaris's strength in 1974 often came from its advanced clutch systems, which optimized power delivery to the track. The "Custom II" itself served as the main model designation for 1974, with engine displacement being the primary variation. No further distinct trim levels were offered beyond these engine choices. For 1974, Polaris engines were largely consistent with 1973 models, with main enhancements focused on exhaust ports. There were minimal differences in body styles and parts between 1974 and 1975 models, aside from minor details like hood badges. FAQ:
Q: How can I ensure this part is compatible with my snowmobile?
R: To guarantee compatibility, please use the year and model selector at the top of this page.
Maintenance
| Component | Interval | Details |
| Before Every Ride Inspection | Before Every Ride | Inspect drive belt, spark plugs, air filter. Check fluid levels (engine oil, coolant, brake fluid, chaincase oil). Inspect track (damage, tension, alignment). Test lights, steering, and brakes. Lubricate chassis. |
| Engine Oil and Filter Change | Every 800 km or 50 hours or Yearly | |
| Engine Air Filter Inspection and Replacement | Every 800 km or 50 hours or Yearly | Inspect and replace as necessary. |
| Spark Plugs Inspection and Replacement | Every 800 km or 50 hours or Yearly | Inspect and replace as needed. |
| Drive Belt Inspection and Replacement | Every 800 km or 50 hours or Yearly | Inspect and replace as needed. |
| Cooling System Check | Every 800 km or 50 hours or Yearly | Check fluid level, leaks, add coolant if needed. Inspect coolant strength seasonally and pressure test the system yearly. |
| General Lubrication | Every 800 km or 50 hours or Yearly | General lubrication on all applicable fittings and grease points. |
| Brake Fluid Flush | Every 2 Years | |
| Coolant Change | Every 2 Years |
These intervals are general recommendations and not specific to the 1974 Polaris Custom II 398. For precise information, consult the official owner's manual. For severe use (e.g., mud, high RPMs, heavy loads), reduce intervals by half.