
If you're looking to replace the fuel cooler in your 2005 Chevy Silverado, there are a few things you should know. Firstly, if you're purchasing an aftermarket replacement fuel cooler, the connector lines may be different from the OEM lines, and could potentially cause a leak. You can purchase replacement fuel cooler connector lines separately if you wish to replace them before installing the new fuel cooler. It's also worth noting that some Duramax Diesel Sets include a fuel cooler line, so if you're purchasing a complete set, you may not need to buy the fuel cooler line separately.
How to replace a 2005 Chevy fuel cooler
| Characteristics | Values |
|---|---|
| Location | Fuel Cooler to Hose Connection off Fuel Tank |
| Fuel Cooler Connector Lines | Aftermarket lines may be different to OEM lines and may cut the o-ring inside the connector causing a leak |
| Fuel Cooler Connector Lines Part Number | FL591-A |
| Duramax Diesel Sets | FL588-A, FL588-B, FL588-C, FL588-D, FL588-E, FL588-F |
| Fuel Cooler Line | Included in Duramax Diesel Sets |
| Fuel Cooler Connector Lines Part Number | FL59 |
| Fuel Cooler Line Part Number | FL590-A1E |
| Vehicle Compatibility | 2001-2005 Chevy Silverado 2500 HD Extended Cab Pickup |
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$72
What You'll Learn
- Fuel cooler connector lines may be different for aftermarket replacement fuel coolers
- Aftermarket fuel cooler connector lines can cut the o-ring inside the connector, causing a leak
- You can replace the fuel cooler connector lines before installing the fuel cooler line
- Fuel cooler lines are included in Duramax Diesel Sets
- Fuel cooler lines are available to buy from Amazon

Fuel cooler connector lines may be different for aftermarket replacement fuel coolers
If you have purchased an aftermarket replacement fuel cooler, the fuel cooler connector lines attached to the fuel cooler may be different from the OEM fuel cooler connector lines. Aftermarket fuel cooler connector lines are made with a straight sharp edge. When these are plugged into the fuel cooler line, they will cut the o-ring inside the connector, causing a leak. If you wish to replace the fuel cooler connector lines before installation of the fuel cooler line, they are available to purchase under part number FL591-A.
If you are purchasing a complete set such as FL588-A, FL588-B, FL588-C, FL588-D, FL588-E, and FL588-F, the fuel cooler line will be included with this set and you will not need to purchase it separately.
You can also buy a replacement fuel line kit for the 2005 Chevy Silverado 2500 HD Extended Cab Pickup, which includes a supply line, return line, and brackets. The kit is made of stainless steel for added corrosion resistance and is pre-formed to fit specific applications for easier installation.
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Aftermarket fuel cooler connector lines can cut the o-ring inside the connector, causing a leak
If you have purchased an aftermarket replacement fuel cooler for your 2005 Chevy Silverado, the fuel cooler connector lines attached to the fuel cooler may be different than the OEM fuel cooler connector lines. As shown in Illustration A, the aftermarket fuel cooler connector lines are made with a straight sharp edge. When these are plugged into the fuel cooler line, they will cut the o-ring inside the connector, causing a leak. This is because the aftermarket lines are made with a straight sharp edge, which can cut the o-ring inside the connector. If you wish to replace the fuel cooler connector lines before installation of the fuel cooler line, they are available to purchase under part number FL591-A as shown in Illustration B.
It is important to note that the fuel cooler line is included in all the Duramax Diesel Sets, so if you are purchasing a complete set such as FL588-A, FL588-B, FL588-C, FL588-D, FL588-E, and FL588-F, you will not need to purchase the fuel cooler line separately.
If you are experiencing a fuel leak, it is possible to safely replace the original fuel line with a premium aftermarket replacement fuel line made of stainless steel for added corrosion resistance. These lines are pre-formed to fit specific applications for easier installation and come with brackets and fittings for a thorough repair.
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You can replace the fuel cooler connector lines before installing the fuel cooler line
If you have purchased an aftermarket replacement fuel cooler, the fuel cooler connector lines attached to the fuel cooler may be different from the OEM fuel cooler connector lines. Aftermarket fuel cooler connector lines are made with a straight sharp edge, which can cut the o-ring inside the connector and cause a leak. If you wish to replace the fuel cooler connector lines before installing the fuel cooler line, they are available to purchase under part number FL591-A.
If you are purchasing a complete set such as FL588-A, FL588-B, FL588-C, FL588-D, FL588-E, and FL588-F, the fuel cooler line will be included with this set and you will not need to purchase it separately.
You can also buy a front fuel line, feed, return and fuel cooler kit that is compatible with 2001-2005 Chevy Silverado 2500 HD Extended Cab Pickup. The replacement fuel lines in this kit are made of stainless steel for added corrosion resistance. The kit also includes brackets and fittings for a thorough repair.
If you have a 2005 LLY, you may want to consider getting a bigger aftermarket fuel cooler.
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Fuel cooler lines are included in Duramax Diesel Sets
The fuel cooler line is included in all the Duramax Diesel Sets, so if you are purchasing a complete set, such as FL588-A, FL588-B, FL588-C, FL588-D, FL588-E, and FL588-F, the fuel cooler line will be included with this set and you will not need to purchase it separately. The location of the fuel cooler line is the fuel cooler to hose connection off the fuel tank.
If you have purchased an aftermarket replacement fuel cooler, the fuel cooler connector lines attached to the fuel cooler may be different from the OEM fuel cooler connector lines. As shown in Illustration A, the aftermarket fuel cooler connector lines are made with a straight sharp edge. When these are plugged into the fuel cooler line, they will cut the o-ring inside the connector, causing a leak. If you wish to replace the fuel cooler connector lines before installation of the fuel cooler line, they are available to purchase under part number FL591-A as shown in Illustration B.
If you are looking for a replacement fuel cooler line for your 2005 Chevy Silverado 6.6L, you can find one at LinesToGo.com. The fuel cooler line is located at the fuel cooler to hose connection off the fuel tank. If you are looking for a front fuel line, you can find one on Amazon.com that is compatible with the 2005 Chevy Silverado 2500 HD Crew Cab Pickup 6.6L V8. The package includes a supply line, return line, and brackets.
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Fuel cooler lines are available to buy from Amazon
If you are looking to replace the fuel cooler lines of your 2005 Chevy Silverado, you can buy them from Amazon. The fuel cooler lines are available as part of a kit that includes the supply line, return line, and brackets. The kit is designed to replace the original fuel line to fix fuel leaks. The lines are made of stainless steel, which adds corrosion resistance. They are pre-formed to fit specific applications, making installation easier. The kit also includes comprehensive solutions and is backed by decades of automotive aftermarket experience.
If you have purchased an aftermarket replacement fuel cooler, the fuel cooler connector lines attached to the fuel cooler may be different from the OEM fuel cooler connector lines. The aftermarket fuel cooler connector lines are made with a straight sharp edge, which can cut the o-ring inside the connector and cause a leak. If you wish to replace the fuel cooler connector lines before installing the fuel cooler line, they are available to purchase from LinesToGo under part number FL591-A.
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Frequently asked questions
The fuel cooler is located at the fuel cooler to hose connection off the fuel tank.
Aftermarket fuel cooler connector lines are made with a straight sharp edge. When these are plugged into the fuel cooler line, they will cut the o-ring inside the connector causing a leak.
If you wish to replace the fuel cooler connector lines before installation of the fuel cooler line, they are available to purchase under part number FL591-A.
You can buy a fuel cooler for a 2005 Chevy Silverado from LinesToGo or Amazon.











































