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Description
FEATURES
- OEM-quality replacement spring
Technical Specifications
- MFG. Part Number SM-04350L-1
Vehicle Information
Arctic Cat Panther 303 Snowmobile (1970-1972)
The Arctic Cat Panther 303, produced from 1970 to 1972, is a classic snowmobile renowned for its comfort and ride quality. This specific designation refers to Panther models equipped with the unique 303cc Sachs Wankel rotary engine (KM914). While the broader Panther line offered various engine options, the 303 stood out for its distinctive rotary power plant, delivering between 18 and 23 horsepower across these model years. It featured an extra-long track and Arctic Cat's slide-rail suspension, making it a popular choice for enthusiasts.
Throughout its production, the Panther 303 saw several notable enhancements. The 1971 models introduced a shock absorber to the rear skid frame arm, replacing the four-wheel setup of 1970, and featured unique hood styling. For 1972, Arctic Cat emphasized safety, adding kink-resistant cables, a handlebar-mounted kill switch, a padded handlebar, and reflective trim. Both front and rear suspension shocks became standard, alongside a new console-mounted toolbox. These updates aimed to improve both performance and rider experience.
Q: Are all Arctic Cat Panther models from 1970-1972 the same?
A: No, while the Panther 303 specifically refers to the Wankel engine variant, the broader Panther line offered various engine options and saw annual updates. Please use our year and trim selector to ensure product compatibility for your specific model.
Maintenance
| Component | Interval | Details |
| Oil | The Sachs Wankel engine (KM914) is lubricated by mixing oil with gasoline (1:50 ratio). There is no separate oil sump or traditional oil change interval. | |
| Oil Filter | As the Wankel engine is a two-stroke pre-mix type, it does not use a conventional engine oil filter. | |
| Drive Belt | Inspect every 50 hours or 2,400 - 4,800 km | Break-in period of 40 km. Regularly inspect for wear and replace immediately if necessary. Lifespan varies with riding style. |
| Spark Plug | Annually | Clean carbon deposits and check gap (0.45 - 0.55 mm). Recommended spark plug: Bosch - W150M11S. |
| Air Filter | Clean as needed | Clean and re-oil the foam or mesh filter as part of routine maintenance. A clogged filter can diminish engine power. |
| Coolant | The Sachs Wankel engine is air-cooled and does not require coolant. |