SKU: 11491R | UPC: 690092122713
Vibrant Replacement Viton O-Ring for Part #11491 and Part #11491S Modular Couplers
Vibrant Performance replacement Viton O-rings fit modular connection couplers #11491 aluminum and #11491S stainless steel. These O-rings create secure seals in charge piping and exhaust systems for turbocharged and supercharged custom builds. They serve as direct replacements to maintain reliable connections in high-heat environments.
Key Features
- Viton Material: Handles temperatures to 400°F with resistance to oils fuels and chemicals for extended service life in performance applications
- Direct Compatibility: Exact fit for #11491 and #11491S couplers ensuring quick replacement and zero leaks
- Leak-Proof Sealing: Provides tight compression in modular connections outperforming rubber in boost and exhaust pressure
- Versatile Application: Works with aluminum and stainless steel piping as alternative to flanged or clamped joints
- Proven Durability: Maintains integrity under vibration and thermal cycling for consistent performance
Product Notes
- Lubricate O-ring with silicone grease prior to installation for smooth seating
- Inspect coupler groove for debris before fitting new O-ring
- Store in cool dry place to preserve material properties
Installation Notes
- Professional installation recommended.
- Remove old O-ring from coupler groove using pick tool then install new one fully seated
- Torque coupler clamps to 5-7 ft-lbs for secure hold without damage
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| Universal | – | Custom Turbo/Supercharged | All with #11491/#11491S Couplers |
Why Choose Vibrant Performance?
- Connections trusted by fabricators and racers worldwide
- High-quality seals built for demanding charge and exhaust use
- Precision-machined fit for repeatable reliable assembly
Frequently Asked Questions
- Q: Which couplers does this O-ring replace?
A: Direct replacement for Vibrant Performance #11491 aluminum modular coupler and #11491S stainless steel version both 2.5 inch ID - Q: Why Viton over rubber?
A: Viton fluoroelastomer resists 400°F heat oils gasoline and boost pressures far better than standard rubber for automotive performance - Q: How to confirm proper installation?
A: Pressurize system to verify no leaks then monitor for pressure drop over multiple heat cycles
Shipping & Handling
- Method: USPS First Class or UPS Ground
- Availability: In stock – ships same or next business day
- Packaging: Protective poly bag inside 6 x 4 x 1 inch box
- Weight: 0.05 lbs
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