Vertex Top End Gasket Kit
1004-1512 (MFG #: 810586)
$46.59
Sale price
$46.59
Regular price
$49.05
Sale
-5%
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Vertex Top End Gasket Kit for Ski-Doo TNT 399 Snowmobile
Vertex Top End Gasket Kit for Ski-Doo TNT 399 Snowmobile
$46.59
Sale price
$46.59
Regular price
$49.05
Sale
-5%
SKU:1004-1512
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Description
These sets include the head, base, and upper end gaskets. These sets are designed for piston replacement.
Technical Specifications
- MFG. Part Number 810586
Vehicle Information
Ski-Doo TNT 399 Snowmobile (1969-1970)
The Ski-Doo TNT 399, produced from 1969 to 1970, was a performance-oriented snowmobile known for its racing capabilities. It was equipped with a robust Rotax twin-cylinder engine. The 1969 model featured a 399 cc engine producing 30 horsepower, while the 1970 model used a 398.6 cc engine, maintaining similar performance. This era saw the TNT 399 as the primary performance trim, distinct from other Ski-Doo series like the Olympic or Nordic, which offered different riding experiences. Between 1969 and 1970, the Ski-Doo TNT 399 maintained a consistent core design. There were no significant mid-cycle generation changes; the engine displacement remained effectively the same, and key features like the Rotax twin-cylinder engine and 15-inch track were consistent across both years. Frequently Asked Questions:
Q: How do I find parts specific to my 1969 or 1970 Ski-Doo TNT 399?
A: To ensure you select the correct parts for your snowmobile, please use the year and model selector at the top of this page.
Maintenance
| Component | Interval | Details |
| Oil System (2-stroke engine) | Before each ride | Check the oil injection reservoir level. 2-stroke engines do not have a traditional oil filter. |
| Drive Belt | Every 50 hours | Inspect for wear and condition. Lifespan can range from 2 400 to 4 800 km. |
| Spark Plug | Before each ride and annually | Check condition before each ride. Replace if necessary or at the start of each season. |
| Air Filter | Before each ride | Check condition. |
Maintenance intervals for vintage snowmobiles can vary. It is highly recommended to consult the official owner's or service manual for the most accurate information.