3 Best Injectors for LB7 Duramax: Review & Buying Guide

Last Updated on September 2, 2022 by John Robinson

If you own an LB7 Duramax, first things first, good choice! Secondly, you do not need to make any modifications to it, given that it is the fastest diesel car technology in the world. But if you really feel the need for it, and this completely depends on personal preference, starting at the very root of your problems(if any) would probably be the wisest thing to do. You might want to start by checking your car’s fuel injectors.

Best fuel injectors for LB7 Duramax

1. Bosch LB7 Car Fuel Injector

car fuel injectors for an LB7 Duramax

As the name suggests, these car fuel injectors from bosch are marketed to be compatible with the LB7 Duramax which makes the filtration process easier. You can be assured that these fuel injectors will fit right into your truck’s system.

The bosch brand by itself has the credibility to attract buyers. Bosch has been around for ages and has delivered some of the best car replacement parts to ever have entered the market. The brand name should be reassuring enough to convince anyone of the quality of the product. These are more on the expensive end of the spectrum owing to the brand name, but there are a couple of reasons why buying these is always going to be a good option.

The first and foremost reason is that these are OE certified which means these pretty much compare to the fuel injectors of the base model of your car. Now do not be alarmed, by compare we mean in terms of placement and size specification.

So these fuel injectors are the same as the ones you had before but only better. Another great thing about these fuel injectors is the fact that the ball seats are made up of hardened chrome which goes a long way when it comes to durability. As chrome is pretty much corrosion-resistant, this factor helps prevent internal corrosion of the product which later on leads to expensive repairs and replacements.

The fuel injectors have solved the age-old problem of cracking that almost all of the injectors on the LB7 have. These come in a set inclusive of all the hardware required during installation, like O rings and copper crush washers. Overall, these fuel injectors make for a pretty solid choice and are going to solve all of your injector related issues in a jiffy.

[i2pc pros_icon=”icon icon-check-1″ cons_icon=”icon icon-cancle” show_title=”false” title=”Pros & Cons” show_button=”false” pros_title=”Pros” cons_title=”Cons” ][i2pros]OE(original equipment) certified
Hardened chrome ball seats
Durable[/i2pros][i2cons]Kind of expensive[/i2cons][/i2pc]

[su_button url=”https://www.amazon.com/dp/B07N6KYW1C?tag=buckeyeb-20″ target=”blank” size=”9″ center=”yes” icon=”icon: shopping-cart” rel=”nofollow”]Check The Latest Price[/su_button]

2. Bostech De651 Silver Series Remanufactured Fuel Injector

Bostech De651 Silver Series Remanufactured Fuel Injector

If you are looking for fuel injectors that function decently without burning a hole through your pocket, then the Bostech De651 is the one for you. This fuel injector is one of the most inexpensive fuel injectors you can find anywhere these days. The low price point does not necessarily mean you will be compromising on quality. The low price point comes from the product being refurbished but that is in no way a cause of concern. 

To prove credibility and reassure the buyers of the quality of these injectors, they come with a warranty of about 13 months. The fuel injectors follow OE guidelines which means that they will fit right into your car. The installation and compatibility of these products will never be a problem. New seals and O rings are a part of the whole package that is this fuel injector. 

The only potential downside is that these fuel injectors are sold individually and not in sets because they are remanufactured. So, you might sometimes have to wait for them to come back in stock to finish your entire set. While this is a nonissue on most days, it is still worth considering. All in all, for the price that you pay, you get a product of the quality you would only get if you were to pay much more. This is simply an easy choice for someone with a small budget.

[i2pc pros_icon=”icon icon-check-1″ cons_icon=”icon icon-cancle” show_title=”false” title=”Pros & Cons” show_button=”false” pros_title=”Pros” cons_title=”Cons” ][i2pros]Warrantied for 13 months
OE certified
Comes with new hardware
Ultra affordable
[/i2pros][i2cons]Sold individually instead of being sold in sets[/i2cons][/i2pc]

[su_button url=”https://www.amazon.com/dp/B001DBVQ08?tag=buckeyeb-20″ target=”blank” size=”9″ center=”yes” icon=”icon: shopping-cart” rel=”nofollow”]Check The Latest Price[/su_button]

3. Bosch 0986435502 Stock Replacement Injector 01-04 6.6l Gm Duramax LB7

Bosch 0986435502 Stock Replacement Injector 01-04 6.6l Gm Duramax LB7

If you are looking for something affordable but still a little more trustworthy than the previous one, then you should probably look into buying this remanufactured fuel injector from Bosch. As we have established already, Bosch is a famous and trusted brand when it comes to buying replacement parts for your vehicle. 

This fuel injector is a good option for those who do not want to invest in buying a first rate Bosch product but still want the Bosch quality that they can trust. This fuel injector is completely remanufactured by Bosch and comes with an unlimited mileage warranty. Talk about having reasons to trust, huh? 

To add to the party, the internal parts are completely new leaving only the outer casing which is refurbished. This effectively brings down the cost without affecting the durability. The injector’s body is supposedly crack resistant and can undergo a lot of pressure without giving in. the balls and seats are made up of chrome which just adds to the whole sustainability parade. 

An added advantage of having this fuel injector is that you do not have to worry about the quality of fuel that goes into your truck. This is because these injectors use fuel filters of the highest quality which prevents internalized corrosion and gradual decaying of the fuel injectors. 

The only downside again is the fact that these are sold individually only and do not come in sets. Regardless of that, for the kind of deal you are getting with buying this product, there isn’t much room left for doubts.

[i2pc pros_icon=”icon icon-check-1″ cons_icon=”icon icon-cancle” show_title=”false” title=”Pros & Cons” show_button=”false” pros_title=”Pros” cons_title=”Cons” ][i2pros]Affordable
Impeccable quality
New internal components
High-quality fuel filters
Unlimited mileage warranty
Chrome balls and seats[/i2pros][i2cons]Sold individually, instead of being sold in sets[/i2cons][/i2pc]

[su_button url=”https://www.amazon.com/dp/B004AGCI1O?tag=buckeyeb-20″ target=”blank” size=”9″ center=”yes” icon=”icon: shopping-cart” rel=”nofollow”]Check The Latest Price[/su_button]

Most car problems are closely related to, if not outright caused, by your fuel injectors. Here are a couple of signs that might be indicative of the fact that your car’s fuel injectors are either faulty/worn/just clogged.

  • The engine warning light is going off

There could be a couple of reasons why your engine warning light is on but this is one of the early signs of your fuel injectors going bad. 

  • Problems related to the pickup

If your car backfires a lot or does not go off as soon as you hit the accelerator, chances are, you are dealing with faulty or clogged injectors. Faulty injectors ruin your car’s pickup rate and can cause your car to misfire a lot.

  • Rapid fuel consumption

Faulty injectors can lead to greater fuel consumption which might bring down your car’s mileage by a couple of miles. It might not be noticeable at first but you will eventually start realizing the difference. Another reason why you might find the need to fill up gas very often is probably because you are losing fuel through a leak. If the injector is faulty, it might leave out some space for the fuel to leak through.

  • Idle is being weird

Your car’s idle might start sounding rougher than usual which is a sign of a couple of different problems which does include problems related to your car’s fuel injectors.


There are too many options to choose from when it comes to fuel injectors. From remanufactured to first use products, the options are endless. It is justified to feel overwhelmed and confused.

To add to all of that, fuel injectors are the kind of product that you can only try and rate. It is only human to not know where to go from here. This is why this above-given list was made; to rid you of all of your confusion and to give you clarity.

Minute observations and listed features are the only way in which you will be able to figure out what product you need to replace your old fuel injectors. The listings are made after thorough research and are products that have been loved by a handful of people who would buy them again when the need does arise.

Hopefully, you find your perfect fit using the information given above and it helps fix all of the problems that made you switch injectors in the first place. All you have to do now is pick one for yourself based on your preferred features, longevity, and your budget. It sure should not be a tough job with these gems at your disposal.

[su_youtube url=”https://www.youtube.com/watch?v=imwZxouqz3U” width=”800″ height=”460″]

John Robinson
John Robinson

Howdy! I’m John Robinson from Levittown, New York. I am a mechanical engineer for 15 years and already had an established car repair company. I developed a personal relationship with cars since I was a kid. I always love the sounds and smell emitted by a car or truck and even at construction machinery. Since then I have been married but my love for cars only grew.