How Many Fuel Filters Does a 6.6 Duramax Have

A 6.6 Duramax has a single fuel filter. This is located on the driver’s side of the engine, near the front.

If you own a 6.6 Duramax, you may be wondering how many fuel filters it has. The answer is two. The first fuel filter is located in the tank, and the second fuel filter is located under the hood.

Duramax Diesel Fuel Filter Replacement (2001-2016)

6.6 Duramax Fuel Filter Location

If you’re looking to change your 6.6 Duramax fuel filter, you’ll need to know where it’s located. The good news is, it’s not too difficult to find. The fuel filter on the 6.6 Duramax is located on the driver’s side of the engine, just below the alternator.

You’ll need a few tools to get the job done, but it’s a pretty straightforward process. To start, disconnect the negative battery terminal. Next, remove the air intake ductwork so you can access the fuel filter housing.

There are three bolts holding the housing in place – two at the front and one at the back. Remove these bolts and then carefully remove the housing from the engine bay. Inside the housing, you’ll see the old fuel filter.

Simply pull it out and replace it with a new one before putting everything back together again. It’s important to make sure that all of your seals are intact and that everything is tightened up properly before starting your engine again – no one wants a leaky fuel system!

How Many Fuel Filters Does a 6.6 Duramax Have


Do Diesel Trucks Have 2 Fuel Filters?

Yes, diesel trucks have two fuel filters. The first filter is located between the fuel tank and the fuel pump. The second filter is located between the fuel pump and the injectors.

Where is the Fuel Filter on a 6.6 Duramax?

If you’re looking to find the fuel filter on a 6.6 Duramax, it’s actually located underneath the truck. You’ll need to crawl under the truck and locate the fuel filter canister, which is usually found near the back of the engine bay. Once you’ve found it, simply unscrew the lid and remove the old filter.

To install the new one, just reverse these steps.

How Often Should You Change Fuel Filter on 6.6 Duramax?

On a 6.6 Duramax, it is recommended that you change your fuel filter every 5,000 miles or once a year – whichever comes first. This will help keep your fuel system clean and running smoothly.

How Many Miles is Too Much for a 6.6 Duramax?

This is a difficult question to answer, as there are many factors that can affect how long a Duramax engine will last. However, in general, most experts agree that a 6.6 Duramax engine should last between 250,000 and 300,000 miles with proper maintenance. With that said, it is not uncommon for some engines to last much longer than this (up to 400,000 miles or more), while others may only last 150,000 miles or less.

Ultimately, it all comes down to how well the engine is cared for and maintained throughout its lifetime.


The 6.6 Duramax diesel engine has two fuel filters: a primary filter and a secondary filter. The primary filter is located under the hood, while the secondary filter is located under the truck’s frame.

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