Cummins Belts and Tensioners for ISX and QSX Engines

Maintain the smooth operation of Cummins X-Series engines with belts and tensioners from Diesel Parts Direct. Replacing the fan belt in your Cummins ISX or QSX, will regularly improve dependability and swapping out the tensioner at the same time will ensure the proper operation of belt driven accessories. Browse our online store for genuine Cummins belts and tensioners, or high-quality aftermarket alternatives.

As recipients of an A+ rating from the Better Business Bureau, Diesel Parts Direct is a name you can trust. We’ve worked on diesel engines for over 40 years and our goal is to supply premium quality parts to keep your Cummins engines up and operating. From Cummins QSX belts to Cummins ISX fan belt tensioners, we have it all.

Keep your Cummins X-Series engines running efficiently with Diesel Parts Direct.