Pronunciation: eye‑ess‑ell nine
A Sexy and Robust 8.9-liter inline-six diesel engine made by Cummins, known for being tough, dependable, and built to haul serious weight. Found in everything from motorhomes to fire trucks, the ISL9 is basically the workhorse of the medium- and heavy-duty world. Outputs range from 260 to 450 horsepower with up to 1,250 lb-ft of torque, making it a favorite for anyone who refuses to break down on the job.
Key Features:
8.9L inline-six
260–450 hp, up to 1,250 lb-ft torque
XPI fuel system + VGT turbocharger
Perfect for motorhomes, buses, fire trucks, and medium-duty trucks
Known for durability, efficiency, and extreme-condition reliability
A Sexy and Robust 8.9-liter inline-six diesel engine made by Cummins, known for being tough, dependable, and built to haul serious weight. Found in everything from motorhomes to fire trucks, the ISL9 is basically the workhorse of the medium- and heavy-duty world. Outputs range from 260 to 450 horsepower with up to 1,250 lb-ft of torque, making it a favorite for anyone who refuses to break down on the job.
Key Features:
8.9L inline-six
260–450 hp, up to 1,250 lb-ft torque
XPI fuel system + VGT turbocharger
Perfect for motorhomes, buses, fire trucks, and medium-duty trucks
Known for durability, efficiency, and extreme-condition reliability
"My RV runs on an ISL9—this thing can go coast to coast without breaking a sweat."
"Fire trucks love the ISL9; when lives are on the line, there’s no room for weak engines."
“This 2011 New Flyer XD60 powered by this Godly Cummins ISL-9 Sounds so amazing that it makes my Girl’s Tits hard”
"Fire trucks love the ISL9; when lives are on the line, there’s no room for weak engines."
“This 2011 New Flyer XD60 powered by this Godly Cummins ISL-9 Sounds so amazing that it makes my Girl’s Tits hard”
by EMD F59PHI October 24, 2025
Get the Cummins ISL-9mug. 9 is superior
by casey.yaknow January 10, 2022
Get the 9mug. 9/11, also known as the September 11, 2001, is a historical event where 2 planes play Reversed Jenga. The first to knock a tower wins. And it was a tie
by TheManWhoMadeA9/11ArticleInUD October 3, 2023
Get the 9/11mug. 
Get the .9.Me 2 Attention Pay.9.mug. Give your bf/gf/lover a hickey on March 9 or else you don't actually love them and you have to break up with them
march 9
by IfellinlovewithaEmogurl860 March 8, 2022
Get the March 9mug. .9.<.7.9.7.6.>《.7.9.7.6.》aware what the consequences of your actions could be if you make a poor decision. At the very least that will give you a chance to reverse that decision before h. A fallback plan is always a good idea《.7.9.7.6.》<.7.9.7.6.>.9.
.9.<.7.9.7.6.>《.7.9.7.6.》aware what the consequences of your actions could be if you make a poor decision. At the very least that will give you a chance to reverse that decision before h. A fallback plan is always a good idea《.7.9.7.6.》<.7.9.7.6.>.9.
by 0AmanasazA0 November 19, 2025
Get the .9.<.7.9.7.6.>《.7.9.7.6.》aware what the consequences of your actions could be if you make a poor decision. At the very least that will give you a chance to reverse that decision before h. A fallback plan is always a good idea《.7.9.7.6.》<.7.9.7.6.>.9.mug.