Best Duramax Engines in 2022 (Review & Buying Guide)

Sometimes it might be quite difficult to find the best duramax engines. With every niche market offering so many different products, it makes sense that this is the case.

Unfortunately, this very fact can make it incredibly difficult to find the item that best suits your needs, which is why we’ve put together this duramax engines buying guide.

Our Top 10 Picks:

10 Top Duramax Engines Reviews:

SaleBestseller No. 1
Duramax Diesel Engine Repair Manual: 2001 thru 2019 Chevrolet and GMC Trucks & Vans 6.6 liter (402 cu in) V8 Turbo Diesel (Haynes Repair Manual)
  • Editors of Haynes Manuals (Author)
  • English (Publication Language)
  • 288 Pages - 05/26/2020 (Publication Date) - Haynes Manuals N. America, Inc. (Publisher)
Bestseller No. 2
AC Delco DexosD 0w-20 Light Duty Diesel Engine Oil 19370138, 10-9277 and AC Delco PF66, 55495105, 19391402 Oil Filter Oil Change Kit For 3.0l Duramax Diesel LM2…
  • Exceeds ILSAC GF-5/APIstandards for protection against deposits, wear, and low speed preignition, especiallyturbocharged engines.
  • Exceeds ILSAC GF-5/APIstandards for protection against deposits, wear, and low speed preignition, especiallyturbocharged engines.
  • Meets ILSAC GF-5 specificationsfulfill current energy-conserving performance standards
  • Meets APIService Classification requirementsbe suitable for usemodern engines
Bestseller No. 3
Ferrum Tools Isuzu 6.6L and Duramax 2001-Later GMT800 2500HD 3500 Rear Crankshaft Oil Seal and Wear Sleeve Installer J-44642 Alternative
  • Rear Crankshaft Oil Seal and Wear Sleeve Installer J-44642 Alternative
  • Applications: ISUZU 6.6L Duramax 2001-Later GMT800, 2500HD, 3500 with 6.6 liter Duramax diesel engines
  • The crankshaft rear seal is fitted to both the engine block and crankshaft. Fit of the inner and outer seal bodies is critical and any misalignment can result in leakage.
  • Our tool is designed to install the seal to correct depth and alignment. Place the seal onto the end of the crankshaft. Screw the installer into the end of the crankshaft. Turn the forcing screw so the body of the tool can push on seal until it bottoms in the block.
  • Heavy duty and precise built.
Bestseller No. 4
PPE High-Capacity Aluminum Deep Engine Oil Pan (Black) 114052120 Compatible with 2011-2016 Chevy/GMC 6.6L LML Duramax Diesel
  • Flat bottom - solves the oil drainage problem associated with GM pan
  • One quart additional oil capacity
  • Cast, high-grade aluminum alloy for optimal heat dissipation and reduces engine noise
  • Neodymium magnet equipped, hardened billet stainless steel drain plug
  • Unshrouded oil pickup / LIFETIME WARRANTY
Bestseller No. 5
BMI Engine Block Heater Cord Compatible with: 2001-2017 6.6 L Duramax Diesel Chevy GMC Silverado 2500 3500
  • Compatible with: All 2001-2017 Duramax 6.6L Diesel Engines Chevy GMC 2500 3500
  • High Quality Rubber for long life and flexability in the cold.
  • Heat sheilding and Cap included!
  • 1500w rated
Bestseller No. 6
iFJF TP3018 Fuel Filter Replacement for Duramax 6.6L Chevy Silverado/GMC Sierra 2500HD 2001-2016 3500HD 2007-2016 Express/Savana 2500 3500 4500 2012-2016 Diesel Engine TP3012 12664429
  • Fitment:Fuel Filter for Duramax 6.6L 2001-2016 Chevy Silverado/GMC Sierra 2500 HD Engine and more.
  • Replaces part number:TP3018,TP3012,19305685,12664429,12633243,33960XE,LFF6012,BF46062,P550517,FF5501,F55464,PS9059B.
  • Element:Multi Layer Filter Media Design,Outer filter element 15 micron.Inner filter element 5 micron.Water separation efficiency 98%.
  • Feature:Protects your vehicle's fuel system from particles such as dirt, rust, and paint particles before they enter the fuel delivery system to improve engine's performance.
  • Note:Please replace the fuel filter regularly and don’t reuse old ones.
Bestseller No. 7
iFJF A3231C Air Filter Replacement for Duramax 6.6L V8 Diesel Engine 2017-2019 Chevy Silverado/GMC Sierra 2500HD 3500HD Replaces 84262965
  • Compatible with:Duramax 6.6L V8 Diesel Engine 2017-2019 Chevy Silverado/GMC Sierra 2500HD 3500HD.
  • Replaces Part Number:A3231C,84262965,CA12258,33-5065,LAF3231,A41474,WA10695.
  • Function: It traps airborne particles before they enter the engine and supplies the cleanest possible air with the least airflow restriction to the engine.
  • Package Includes:1 x Air filter.Ensures maximum airflow to prevent engine wear.
  • Warm Hint:Please replace the filter each 12,000 miles to keep the engine in good condition.
Bestseller No. 8
labwork Fuel Injector Return Line Kit Replacement for 2004.5-2010 6.6L LLY Duramax Diesel Pickup Truck Engines
  • Replacement for 2004.5-2010 6.6L LLY Duramax Diesel Pickup Truck Engines
  • SS adapters replacing the breakable plastic brackets to prolong the service life of the lines
  • Easily breaking & aging of the plastic brackets lead to the failure of the return lines
  • Superior O-rings keep excellent sealing
  • One Left hand/Driver side and one Right hand/ Passenger side fuel injector return line
SaleBestseller No. 10
H10331 Haynes 2001-2019 Duramax Diesel Engine for Chevrolet & GMC Trucks & Vans Haynes Techbook
  • by Author (Author)
  • 09/29/2022 (Publication Date) - by Publisher (Publisher)

Last update on 2022-09-28 / Affiliate links / Images from Amazon Product Advertising API

How to find the best duramax engines?

Here, we’ll be going over a number of factors that you can use to ensure that you’re purchasing the best duramax engines for you.

Regardless of which type of item you’re looking to buy, chances are that there are existing buying guides on the internet, all of which aim to give you good duramax engines recommendations.

Despite these recommendations, however, it’s always a good idea to do your own research. In addition to this research, asking yourself the following questions is also super helpful:

  • What features does the duramax engines need to have to be perfect for my needs?
  • What is my budget?
  • Do I need to purchase a certain brand?

Once you’ve answered these questions and have a good idea of what you’re looking for and the buying process becomes much easier. Keep in mind that when looking for the best product, there’s no need to rush. In fact, very rarely are the ideal products found by choosing the first one you see or by basing your decisions on only one factor. Take your time and enjoy the process!

Now, with the answers to the previous questions in mind, we urge you to use our upcoming buying guide for duramax engines to find what you’re looking for:


In some cases, the brand of duramax engines is very important. For example, if you’re looking for an item that works in tandem with another, you might very well need both products to be the same brand. If this is the case, it’s vital to pay attention to this factor, as choosing the wrong product can mean the difference between wasting your money and buying a great product that functions as it should.


The features in any given duramax engines are important because they can dictate which version of an item you need and how much money you need to spend. Consider all the key features that you want your item to have and don’t settle for anything that doesn’t check at least ¾ of your boxes.


Customer reviews about duramax engines are crucial – especially when you’re buying a product that costs a lot of money or serves a big importance. Luckily, most products can be found online, which means that it’s common for there to be scores of customer reviews from those who have already purchased any given product.

Pay attention to these reviews. Take note of the pros and cons that they mention, and factor these into your big decision. In some cases, you’ll be forced to sacrifice one con in order to gain a particular pro, but being aware of the potential con is going to be beneficial in either case.


Of course, quality is key. You don’t want to purchase a low-quality product. If you do, you run the risk of your item breaking, not working properly, or otherwise proving to be very disappointing, as well as a waste of money.

You can compare duramax engines quality by researching what your potential purchases are made from, contrasting the individual items against each other to discern which one is made of the best materials.


Warranty isn’t always going to be important, but it definitely can be. This is especially true if the item in question is tech-related or expensive. A good warranty will be valid for an extended time after purchase and cover a variety of problems ranging from item defects to random accidents, water damage, and other miscellaneous events that could ruin your product.


The quest to find the best duramax engines can be daunting – but it doesn’t have to be. It can be made much easier by asking yourself a few simple questions and then thinking critically about the items you want to buy. Consider their features, quality, brand, warranty, and customer reviews and you’re more likely to make a great purchase.