Permatex  red silicone sealant 81409 11 oz 

• Formulated for high temperature applications or heavy-duty use (such as towing); resists auto and shop fluids
• Replaces almost any cut gasket by making reliable "formed-in-place" gaskets that resist cracking, shrinking and migrating caused by thermal cycling
• Coats pre-cut gaskets to increase reliability
• Temperature Range: -65°F to 650°F (-54°C to 343°C) intermittent
• Suggested Applications: Valve covers, oil pans, timing covers, water pumps, and thermostat housings
• Formulated for hi-temp applications, or heavy-duty use
• Replaces almost any cut gasket, and coats pre-cut gaskets to increase reliability
• Makes reliable 'formed-in-place' gaskets that resist cracking, shrinking and migrating
• Temperature range of -65F to 650F intermittent
• Suggested Applications: Valve covers, oil pans, timing covers, water pumps, thermostat housings, transmission pans