Description

When your serpentine belt starts squealing or your charging system isn’t keeping up like it should, it might not be the belt that’s the problem—it’s often a worn-out tensioner that can’t maintain proper pressure anymore. This fan belt tensioner keeps your belt at just the right tension automatically, so you don’t have to worry about manual adjustments or dealing with a loose belt when you’re trying to get work done.

What You’re Getting

Spring-loaded automatic tensioning that adjusts itself as your belt stretches over time
Heavy-duty construction built to handle the vibration and stress of agricultural work
Sealed bearings in the pulley that run smooth and last longer than cheap alternatives
Direct replacement for your original equipment—no modifications needed

Built for Real Farm Work

This tensioner fits right into Ford New Holland 40 Series tractors like the 5640, 6640, 7740, 7840, 8240, and 8340, plus the TS Series including TS80, TS90, TS100, TS110, and TS115 models. These are the workhorses you’ll find doing everything from hay production and loader work to row crop farming and heavy field operations where reliable power to your alternator, A/C compressor, and hydraulic systems is critical.

Made to Last

Farm equipment takes a beating, and a tensioner pulley is no exception. This component prevents belt slippage that can cause alternator charging issues, air conditioning failure, or hydraulic system problems during peak operating demands. The sealed bearings and robust spring mechanism are designed to keep working through temperature swings, dust, and the constant vibration of engine operation.

Installation Notes

You’ll need to relieve the belt tension first, then swap out the old tensioner for the new one. Always inspect the entire serpentine belt system including the belt, idler pulleys, and driven components during tensioner replacement. Replace the serpentine belt simultaneously with the tensioner for optimal system performance and reliability. While you’ve got everything apart, it’s a good time to check all your pulleys for wear or misalignment.