High-performance replacement exhaust O-ring kit engineered specifically for two-stroke peewee and junior motocross applications. Designed to provide a secure, leak-free seal between the exhaust header pipe and cylinder spigot while withstanding extreme thermal expansion and engine vibration.
Specs & Details
- Manufacturer Part Number: 78-1086
- Alternative Part Number: FMF 014820
- Component Type: Exhaust O-Ring Kit / Mounting Hardware
- Material & Construction: High-temperature fluoroelastomer (Viton) O-rings designed for high-heat two-stroke spigot environments
Two-Stroke Vehicle Fitment
| Make | Model | Engine Type | Year Range |
| KTM | 50 SX / Mini / Adventure | Two-Stroke Peewee Motocross | 2006–2021 |
TSO Garage Note
An essential maintenance item for keeping your peewee rider's KTM 50 two-stroke clean and leak-free at the exhaust spigot. Fresh high-temp O-rings eliminate oily exhaust drool and maintain a proper seal under high-RPM clutch engagement and mini-track abuse.
