
Permatex is a sealant that can be used to seal the fuel line fittings going to the carburetor. It is a solvent-based, flexible bond that is highly effective on irregular or uneven joint surfaces. It is ideal for use on frequently disassembled engines, as well as two and four-cylinder engines. There are different types of Permatex sealants, such as the High Temperature Thread Sealant and the Fuel Resistant MotoSeal Gasket Maker.
| Characteristics | Values |
|---|---|
| Fuel line fitting thread sealant | Permatex 59214 or Permatex 56521 |
| Fuel-resistant MotoSeal Gasket Maker | Permatex |
| Fuel-resistant Aviation Form-a-gasket | Number 3 |
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What You'll Learn
- Permatex 59214 and Permatex 56521 are two sealants that can be used on fuel lines
- Fuel-resistant MotoSeal Gasket Maker is a solvent-based, flexible bond that can be used on carburetor gaskets
- Aviation Form-a-gasket Number 3 is a liquid or paste sealant that can be used on fuel lines
- High-temperature thread sealant is another product offered by Permatex
- Fittings at the fuel bowl inlet of the carburettor require no sealant

Permatex 59214 and Permatex 56521 are two sealants that can be used on fuel lines
Permatex 59214 is a high-temperature thread sealant that comes in a 6ml tube. It locks and seals threaded fittings and can be used on fuel fittings. It resists leakage, vibration loosening, moisture, hydraulic fluids and diesel fuels. It also lubricates threads for easy assembly and disassembly. Parts may be repositioned up to 4 hours after application.
Permatex 56521 is a high-performance thread sealant that comes in a 50ml tube. It is formulated specifically for metal, tapered pipe thread fittings, and replaces Teflon tape and pipe dopes. It cures rapidly to withstand up to 10,000 PSI and prevents galling and protects mated threaded areas from rust and corrosion. It is ideal for stainless steel fittings, oil PSI sending units, oil and coolant lines, intake manifold switches, rear axle fill plugs, and fuel fittings.
Both of these products can be used to seal fuel lines, although it is recommended to check the specific requirements of your carburetor before use.
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Fuel-resistant MotoSeal Gasket Maker is a solvent-based, flexible bond that can be used on carburetor gaskets
Permatex is a sealant that can be used on fuel lines and carburettors. However, it is not recommended to use thread Teflon tape anymore. Instead, you can use a liquid or paste-type sealant, such as the Permatex Fuel-Resistant MotoSeal Gasket Maker. This is a solvent-based, flexible bond that can be used on carburettor gaskets. It is ideal for use on frequently disassembled engines, as well as two and four-cylinder engines. It forms a tough, flexible bond within 20 minutes and is highly effective on irregular or uneven joint surfaces. It is also suitable for use on motorcycle case halves, transmission case halves, valve covers, centre and end covers, crankcase halves, cam covers, timing chain cases, primary drives, side covers, and clutch housings.
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Aviation Form-a-gasket Number 3 is a liquid or paste sealant that can be used on fuel lines
Permatex also offers a High-Temperature Thread Sealant, which is another option for sealing fuel lines. This product is designed for two and four-cycle engines and forms a tough, flexible bond within 20 minutes. It is ideal for use on frequently disassembled engines and is highly effective on irregular or uneven joint surfaces.
When sealing fuel lines and fittings, it is important to use a product that is specifically designed for this purpose. Using the wrong type of sealant can result in costly repairs. It is also important to note that some fittings, such as those at the fuel bowl inlet of the carburettor, may not require any sealant at all. These fittings are either machined or flared tubing and should seal themselves.
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High-temperature thread sealant is another product offered by Permatex
Permatex's Fuel Resistant MotoSeal Gasket Maker is another product that can be used on carburetor gaskets. It forms a solvent-based, tough, flexible bond within 20 minutes. This is ideal for use on frequently disassembled engines, as well as two and four-cylinder engines.
It is recommended that you do not use thread Teflon tape to seal the fuel line fittings going to the carburetor. If you are referring to the fittings at the fuel bowl inlet of the carburetor itself, such as a Holley, these require no sealant as they are either machined fittings or flared tubing.
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Fittings at the fuel bowl inlet of the carburettor require no sealant
If you are looking to seal the fuel line fittings going to the carburettor, you can use a liquid or paste type sealant. Permatex offers a High Temperature Thread Sealant, which is suitable for gasoline. Another option is the Permatex Fuel Resistant MotoSeal Gasket Maker, which is ideal for two and four cycle engines.
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Frequently asked questions
Permatex offers a range of products that can be used to seal a fuel line on a carburetor, including the Permatex Fuel Resistant MotoSeal Gasket Maker, the Permatex 59214 High-Temperature Thread Sealant, and the Permatex 56521 High-Performance Thread Sealant.
Yes, there are other products on the market that can be used to seal a fuel line on a carburetor, such as the Aviation Form-a-gasket Number 3.
If you notice any leaks or damage to the fuel line, it is important to seal it as soon as possible to prevent further issues.











































