When it comes to the valvetrain in your 1987 through 1998 5.9 Cummins, the stock parts are probably getting worn out. Let’s face it, those valves, valve springs, and rocker arms have been moving for several hundred thousand miles. Upgrading the rocker arms is an easy way to add reliability to your engine. What’s more, you can do it yourself with the help of these new standard-ratio, drop-in rocker arm kits from PRW Industries.

Not only are these 5.9 Cummins rockers perfect for stock applications, but you performance junkies can appreciate and benefit from them as well.

These are a high-performance pedestal-type rocker assembly made from a high-grade alloy steel and feature bronze bushings. With the abuse these rocker assemblies can be subjected to, bronze bushings are much better than needle bearings that can escape the rocker arm and do serious damage to your engine.

The PRW rocker assemblies come in a standard ratio and are a direct replacement for the OE units. PRW’s Cummins high-performance shaft rocker arm systems are the perfect upgrade to allow more power and run your engine more efficiently. Each rocker is substantially thicker than stock and this upgraded rocker arm system comes complete with everything you need from ball adjusters and fasteners, along with silicon bronze bushings instead of the OE-style needle bearings.

For just a couple hours of your time, why wouldn’t upgrade to these new rocker arms and keep your 5.9 Cummins on the road for several thousand more miles?