OVERVIEW
This exhaust donut gasket restores a leak-free connection between the snowmobile exhaust pipe and silencer, eliminating gas leaks, excessive noise, and compromised backpressure that can degrade engine performance. Engineered by SPI with a high-temperature, vibration-resistant formulation, it serves as a direct replacement for worn Yamaha seals and is built specifically for the Yamaha SRX 700 snowmobile family fitted from 1998 to 1999.
ENGINEERING & PERFORMANCE
Installed between the header and muffler, this gasket maintains correct backpressure while sealing hot gases that typically escape through degraded factory interfaces. The temperature-rated construction endures sustained heat cycling and chassis vibration without deforming, preserving a reliable leak-free barrier throughout winter trail operation. Exact dimensional matching ensures straightforward installation and consistent airflow restoration.
KEY FEATURES
- Direct replacement for Yamaha OEM part number 8DF‑14714‑00‑00
- Manufactured by SPI under part number SM‑02023
- Precision dimensions: 28.8 mm inner diameter, 37.9 mm outer diameter, and 11 mm height
- Seals connection between exhaust pipe and silencer to prevent gas leakage
- High-temperature and vibration-resistant construction for continuous snowmobile operation
- Restores proper exhaust backpressure for consistent power delivery
- Eliminates excess noise caused by deteriorating factory seals
- Made in Taiwan to strict manufacturing specifications
TECHNICAL SPECIFICATIONS
- Brand: SPI
- Part Name: Exhaust Silencer / Pipe Donut Gasket
- Exhaust Type: Exhaust system seal
- Material: High-temperature, vibration-resistant formulation
- Supported Years: 1998–1999
- Compatible Trims: SRX 700, SRX 700S, Mountain SRX 700
FITMENT
- • Yamaha SRX 700 (1998–1999)
- • Yamaha SRX 700S (1998–1999)
- • Yamaha Mountain SRX 700 (1998–1999)
WHY RIDERS CHOOSE THIS
Riders select this SPI gasket because it reliably restores factory exhaust sealing without requiring custom modification tools or complex procedures. The high-temperature formulation resists heat degradation and trail vibration, keeping exhaust gases fully contained so the motor runs efficiently and throttle response remains crisp. By maintaining correct backpressure, the unit prevents power loss and unwanted noise that typically accompany cracked original seals. Its precise dimensions ensure a secure fit on Yamaha SRX platforms, providing a straightforward upgrade that preserves trail performance and protects engine breathing.