Top 10 Best Duramax Transmission Lines Reviews & Comparison Table 2022

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Our team studied on 52751 reviews available online for Duramax Transmission Lines, chose the finest ones and prepared Duramax Transmission Lines Reviews for you. It was very difficult to shortlist the ideal Duramax Transmission Lines from thousands of products online. However, We tried to make sure that you get only the Best Duramax Transmission Lines from our suggestions. Check our listings-:

NoProductScoreAction
1Fleece Performance Engineering FPE-TL-LBZ-LMM Transmission Cooler Line (06-10 GM Duramax 6.6L LLY/LBZ/LMM Allison)9.8Check On Amazon
2Duramax Transmission Lines/Hoses (06-10) Heavy-Duty upgrade- Chevy GMC 6.6L w/Allison-Transmission Cooler Lines9.2Check On Amazon
3Fleece Performance Engineering FPE-TL-LB7-LLY Transmission Cooler Line (01-05 GM Duramax 6.6L LB7 / LLY Allison)9Check On Amazon
4SPELAB 10AN Upgraded Transmission Cooler Hose Line Fitting Kit Compatible with Chevrolet/GMC 6.6L Duramax (LLY/LBZ/LMM) 2006-20109Check On Amazon
5Upgraded Allison Transmission Cooler Lines 2006-2010 GM GMC Chevy 6.6L LBZ LMM Duramax Diesel 6.68.6Check On Amazon
6Mishimoto MMTCL-DMAX-06 Transmission Cooler Line Kit8.6Check On Amazon
7XtremeAmazing Transmission Cooler Lines Compatible with Chevy Duramax Diesel 6.6L8.4Check On Amazon
8Upgrade Transmission Cooler Lines Hoses with Fittings Adapters Compatible with 2006-2010 GM GMC Chevy LBZ LMM 6.6L Duramax w/Allison8.4Check On Amazon
9Duramax Transmission Lines/Hoses (04-05) Heavy-Duty upgrade-Chevy GMC 6.6L w/Allison-Transmission Cooler Lines8.2Check On Amazon
10Duramax Transmission Lines/Hoses (06-10) 5/8" XTREME-DUTY upgrade-Chevy GMC 6.6L w/Allison-Transmission Cooler Lines8.2Check On Amazon
Disclaimer: As An Amazon Associate I Earn From Qualifying Purchases.

1. Fleece Performance Engineering FPE-TL-LBZ-LMM Transmission Cooler Line (06-10 GM Duramax 6.6L LLY/LBZ/LMM Allison)

2. Duramax Transmission Lines/Hoses (06-10) Heavy-Duty upgrade- Chevy GMC 6.6L w/Allison-Transmission Cooler Lines

  • Replaces 2006-2010 Chevy,GMC 6.
  • 1/2″ DOUBLE Steel Braided w/abrasion resistant exterior (3X the protection to prevent against rub through or road hazards) – 5000 PSI (20,000 BPSI) Premium Hose (the Allison transmission operates at 300 psi max pressure) – High Quality, crimped on, zinc plated (1) piece hose ends are used on our Duramax transmission lines.
  • Designed and built in USA by CR Performance, a trusted USA manufacturer of the Duramax Transmission lines.
  • Free 2-3 Day Expedited Shipping – Orders normally ship out same day M-F + Sat.
  • Lifetime Warranty & 24/7/365 support with quick response

3. Fleece Performance Engineering FPE-TL-LB7-LLY Transmission Cooler Line (01-05 GM Duramax 6.6L LB7 / LLY Allison)

  • Fleece Performance Engineering FPE-TL-LB7-LLY Transmission Cooler Line (01-05 Compatible with/Replacement for GM Duramax 6.

4. SPELAB 10AN Upgraded Transmission Cooler Hose Line Fitting Kit Compatible with Chevrolet/GMC 6.6L Duramax (LLY/LBZ/LMM) 2006-2010

  • Applicable Models – Direct fit for 2006-2010 LLY/LBZ/LMM Duramax
  • Package Include – 1 X 10AN 46.
  • Good Quality – High-strength nylon outer braid prevents expansion under high pressure and protects line against abrasion.
  • Well Design – High-flow -10AN lines and fittings ensure high flow while preventing leaks
  • After Sale – We value your shopping experience and strive to provide high quality products and services.

5. Upgraded Allison Transmission Cooler Lines 2006-2010 GM GMC Chevy 6.6L LBZ LMM Duramax Diesel 6.6

  • 2006-2010 GM 6.6L LBZ/LMM Duramax Diesel (w/ Allison Transmission ONLY)
  • Includes All Fittings/Hardware
  • Transmission Lines
  • Concave Washers

6. Mishimoto MMTCL-DMAX-06 Transmission Cooler Line Kit

  • Compatible with 2006-2010 LLY/LBZ/LMM Duramax
  • PTFE inner line is extremely oil and heat resistant for maximum durability
  • High-strength nylon outer braid prevents expansion under high pressure and protects line against abrasion.
  • High-flow -10AN lines and fittings ensure high flow while preventing leaks

7. XtremeAmazing Transmission Cooler Lines Compatible with Chevy Duramax Diesel 6.6L

  • Compatible with 2006-2010 Chevy & GMC 2500 & 3500 applications with the 6.
  • Package Contents: 1x Transmission Cooler Lines Kit

8. Upgrade Transmission Cooler Lines Hoses with Fittings Adapters Compatible with 2006-2010 GM GMC Chevy LBZ LMM 6.6L Duramax w/Allison

  • Great Compatibility】Fits for 2006-2010 GM Chevy GMC 2500 & 3500 6.
  • High Performance】Designed to easily & properly repair the old leaky transmission lines without antifreeze mess.
  • Powerful Features】High temperature resistance.
  • Attention Please】The fitting thread is 7/8-14.
  • 100% Satisfaction Guarantee】If you’re not satisfied with our Transmission Cooler Lines for Allison, simply return it for a full refund in 30 days.

9. Duramax Transmission Lines/Hoses (04-05) Heavy-Duty upgrade-Chevy GMC 6.6L w/Allison-Transmission Cooler Lines

  • CR Performance 2004-2005 Chevy,GMC 6.
  • 1/2″ DOUBLE Steel Braided w/abrasion resistant exterior (3X the protection to prevent against rub through or road hazards) – 5000 PSI (20,000 BPSI) Premium Hose (the Allison transmission operates at 300 psi max pressure) – High Quality, crimped on, zinc plated (1) piece hose ends are used on our Duramax transmission lines.
  • Designed and built in USA by CR Performance, a trusted USA manufacturer of the Duramax Transmission lines.
  • Free 2-3 Day Expedited Shipping – Orders normally ship out same day M-F + Sat.
  • Lifetime Warranty & 24/7/365 support with quick response

10. Duramax Transmission Lines/Hoses (06-10) 5/8″ XTREME-DUTY upgrade-Chevy GMC 6.6L w/Allison-Transmission Cooler Lines

  • Replacement 5/8″ upgrade 2006-2010 Chevy,GMC 6.
  • 5/8″ (larger I.
  • Designed and built in USA by CR Performance, a trusted USA manufacturer of the Duramax Transmission lines.
  • Free 2-3 Day Expedited Shipping – Orders normally ship out same day M-F + Sat.
  • Lifetime Warranty & 24/7/365 support with quick response

How To Choose The Best Duramax Transmission Lines

Does the thought of finding a great Duramax Transmission Lines stress you out? Has your mind been juggling between choices when it comes to buying Duramax Transmission Lines in general, specifically regarding which model to choose?
If that’s the case, know that you’re not alone. Many people find it tough to buy the perfect Duramax Transmission Lines for themselves. We understand the stress associated with the buying process!

Since you’re here, you are obviously curious about Duramax Transmission Lines. You’ve been bombarded with information, so you need to find a reputable source with credible options before you make any decisions on which product would be best for your needs.

There are many sources that’ll provide you with that information- buying guides or ratings websites, word-of-mouth testimonials from friends or family members, online forums where users share their personal experiences, product reviews specifically found all over the internet and YouTube channels. Only thorough research will ensure that you get the right product.

But that’s not always easy, right? That's why we've taken time to compile a list of the best Duramax Transmission Lines in today's market, on your behalf, so that there will be no more worries for you.

How did we come up with the list, you ask? How did we create this buying guide?

  • First, our algorithms collected as much information available about these products from trusted sources.
  • We employed both Artificial Intelligence and large data volume to validate all collected information.
  • Then our AI ranked them on their quality-to-price ratio using industry-standard criteria that let us pick the best Duramax Transmission Lines currently on the market!
The products aren’t chosen randomly. We consider several criteria before assembling a list. Some of the criteria are discussed below-

  1. Brand Value: What happens when you go for a not-so-reputable brand just because the price seems cheap? Well, the chance of getting a short-lasting product goes higher. That’s because the renowned brands have a reputation to maintain, others don’t.


Top Duramax Transmission Lines brands try to offer some unique features that make them stand out in the crowd. Thus hopefully, you’ll find one ideal product or another in our list.

  1. Features: You don’t need heaps of features, but useful ones. We look at the features that matter and choose the top Duramax Transmission Lines based on that.
  2. Specifications: Numbers always help you measure the quality of a product in a quantitative way. We try to find products of higher specifications, but with the right balance.
  3. Customer Ratings: The hundreds of customers using the Duramax Transmission Lines before you won’t say wrong, would they? Better ratings mean better service experienced by a good number of people.
  4. Customer Reviews: Like ratings, customer reviews give you actual and trustworthy information, coming from real-world consumers about the Duramax Transmission Lines they used.
  5. Seller Rank: Now, this is interesting! You don’t just need a good Duramax Transmission Lines, you need a product that is trendy and growing in sales. It serves two objectives. Firstly, the growing number of users indicates the product is good. Secondly, the manufacturers will hopefully provide better quality and after-sales service because of that growing number.
  6. Value For The Money: They say you get what you pay for. Cheap isn’t always good. But that doesn’t mean splashing tons of money on a flashy but underserving product is good either. We try to measure how much value for the money you can get from your Duramax Transmission Lines before putting them on the list.
  7. Durability: Durability and reliability go hand to hand. A robust and durable Duramax Transmission Lines will serve you for months and years to come.
  8. Availability: Products come and go, new products take the place of the old ones. Probably some new features were added, some necessary modifications were done. What’s the point of using a supposedly good Duramax Transmission Lines if that’s no longer continued by the manufacturer? We try to feature products that are up-to-date and sold by at least one reliable seller, if not several.
  9. Negative Ratings: Yes, we take that into consideration too! When we pick the top rated Duramax Transmission Lines on the market, the products that got mostly negative ratings get filtered and discarded.
These are the criteria we have chosen our Duramax Transmission Lines on. Does our process stop there? Heck, no! The most important thing that you should know about us is, we're always updating our website to provide timely and relevant information.

Since reader satisfaction is our utmost priority, we have a final layer of filtration. And that is you, the reader! If you find any Duramax Transmission Lines featured here Incorrect, irrelevant, not up to the mark, or simply outdated, please let us know. Your feedback is always welcome and we’ll try to promptly correct our list as per your reasonable suggestion.

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