Permatex Ultra Black Hi-Temp RTV Silicone Gasket Maker 3oz - Harley & Indian V-Twin
About Permatex
Permatex has manufactured chemical solutions for vehicle assembly and repair for over a century — thread lockers, gasket makers and sealants that show up in nearly every V-twin service procedure.
Permatex Ultra Black Hi-Temp RTV silicone gasket maker in a convenient 3 oz tube is specifically engineered for V-twin motorcycle engine gaskets and sealing surfaces. This fast-curing, sensor-safe formula is built to withstand constant oil exposure and extreme temperatures. It's an essential for any engine builder or DIY mechanic working on Harley-Davidson and Indian Motorcycle powerplants.
Why riders pick this
- Fast-curing for efficient assembly
- Sensor-safe and low odor formulation
- Noncorrosive to critical engine components
- Withstands temperatures from -65°F to 550°F intermittent
- Maintains flexibility and oil resistance
When rebuilding or maintaining a V-twin engine, a reliable seal is paramount. Permatex Ultra Black Hi-Temp RTV Silicone Gasket Maker provides the robust sealing performance needed for high-temperature and oil-exposed environments. Its advanced formulation ensures a durable, flexible seal that can handle the demands of your Harley-Davidson or Indian Motorcycle engine.
Engineered for Extreme V-Twin Conditions
- Fast-curing formula for quicker assembly
- Sensor-safe and low odor, protecting engine electronics
- Noncorrosive to gasket materials, preserving component integrity
- Retains high flexibility and oil resistance for long-term sealing
- Withstands temperatures from -65°F to 550°F intermittent
The Pro's Choice for Engine Sealing
This Permatex Ultra Black RTV silicone gasket maker meets or exceeds OE silicone gasket performance specifications, making it a trusted choice for professional builders and enthusiasts alike. Use it for valve covers, oil pans, primary covers, and other sealing applications where a strong, flexible, and high-temperature-resistant gasket is required on your V-twin. Its reliability helps ensure a leak-free and long-lasting engine build.
Specifications
- Brand: Permatex
- Manufacturer Part #: 82180
- UPC: 686226821805
- Size: 3 oz
- Weight: 0.27 lbs
- Dimensions: 3.8 in L × 7.95 in W × 1.35 in H
Common questions
Will this gasket maker damage my oxygen sensors?
No, this is a sensor-safe formulation and will not harm O2 sensors or other engine electronics on your V-twin.
How long before I can start the engine after applying?
This is a fast-curing formula, but always allow adequate cure time as specified in the package instructions before running the engine to ensure a proper seal.
Can I use this on a primary cover gasket?
Yes, this RTV silicone gasket maker is suitable for various engine and drivetrain sealing applications on V-twin motorcycles, including primary covers, valve covers, and oil pans.
Ordering from Vtwinbikers
- Brand new, sourced through authorized US distribution — never used, never grey-market.
- Not sure it fits? Use Shop by Bike to filter by your year and model, or email us and we will confirm before you order.
- Harley-Davidson and Indian Motorcycle is all we do, so you are talking to people who ride what you ride.
| BRAND | Permatex |
| TYPE | Chemicals |
| SKU | 59-9219 |
| WEIGHT | 0.27 lb |
