5.9 vs 6.7 Cummins: Reliability & Performance Showdown!
In the world of diesel engines, few debates are as heated as the one between the legendary 5.9 Cummins and its younger sibling, the 6.7 Cummins. Both engines have their staunch supporters and critics, but what's the real story? In today’s video, Jake puts these two Cummins powerhouses head-to-head, focusing on their reliability and performance capabilities. Join Jake as he dissects each engine's strengths and weaknesses, delves into their performance characteristics, and provides you with an unbiased comparison. Whether you’re a truck enthusiast, a potential buyer, or just a fan of diesel engines, this video is your one-stop-shop for all things 5.9 and 6.7 Cummins. 8020 Automotive Website: https://8020automotive.com/ Check Out Our Portfolio: Tuning Pro - https://tuningpro.co/ BMW Tuning - https://bmwtuning.co/ Diesel IQ - https://dieseliq.com/ Chevy Trucks - https://chevytrucks.org/ Porsche Mania - https://porsche-mania.com/ Muscle Car Club - https://musclecarclub.com/ New Videos Every Week. Subscribe so you don't miss a video! ►Subscribe Here: https://bit.ly/3xtNUph --------------------------------------------------------------------- What is 8020 Automotive? 8020 Automotive owns and operates a portfolio of content websites and eCommerce stores in the Automotive industry. We provide over a million monthly readers with high-quality automotive content, focused predominantly on technical and performance modification guides. --------------------------------------------------------------------- 00:20 – 5.9 vs 6.7 Cummins Introduction 00:55 – The 5.9 Cummins Variations 01:28 – The 6.7 Cummins Variations 01:50 – 5.9 vs 6.7 Cummins Reliability 02:21 – Most Reliable 5.9 vs 6.7 Cummins 02:50 – Second Most Reliable 5.9 vs 6.7 Cummins 03:41 – Third Most Reliable 5.9 vs 6.7 Cummins 04:17 – Fourth Most Reliable 5.9 vs 6.7 Cummins 04:41 – Fifth Most Reliable 5.9 vs 6.7 Cummins 05:23 – Least Reliable 5.9 vs 6.7 Cummins 05:48 – Recap: Most Reliable 5.9 & 6.7 Cummins Engines 06:17 – 6.7 vs 5.9 Cummins Performance Potential 08:08 – Most Capable 6.7 vs 5.9 Cummins 08:38 – Second/Third Most Capable 6.7 vs 5.9 Cummins 09:50 – Fourth Most Capable 6.7 vs 5.9 Cummins 10:32 – Least Capable 6.7 vs 5.9 Cummins 11:09 – 6.7 vs 5.9 Cummins Performance Potential Conclusion 11:34 – The Best Overall 5.9 Cummins vs 6.7 Cummins

Everything Wrong with the 6.7L Cummins

Our FIRST Look Inside the NEW 2026 6.7L Cummins… What Did They Change?!

7 Engines Mechanics REFUSE to Work On (Ranked Bad to Catastrophic!)

Unbelievable Workers | Working with Talented Engineers #46 #fail #adamrose #smartworkers

5 Diesel Trucks That Last Forever (And the 3 That'll Bankrupt You)

5.9 vs 6.7 3rd Gen Cummins | Which Is Best and Why

The Most Overrated Diesel…12 Valve P-Pump Cummins #diesel #dieselpower

The Science Behind Million Mile Engines!

Unbelievable Smart Worker & Hilarious Fails | Construction Compilation #8 #adamrose #smartworkers

14 Models Dealers Can't Sell in 2026 (And Why Nobody's Buying Them)

5.9 vs 6.7 cummins - weak spots and what I like about each

THIS Is What Good Maintenance Can Do! Beautiful 2005 5.9 Cummins In For Some More Care

We Break Down the Best Cummins Years to Own

Diesel Pickup Truck Tier List: Duramax vs Cummins vs Powerstroke!!!

REVIEW: Everything Wrong With a 5.9 Cummins 24v

How To Install Banks Monster Ram 6.7 Cummins - QUICK VERSION

Best & WORST Truck Powertrains Right Now (Honest Buyer’s Guide) 2026

Do THIS and Your Diesel Engine Will Run Like NEW Again!

5.9 VS 6.7 CUMMINS TOWING 20,000LBS TOWING BATTLE!!!!

