Description Diesel Rx Glow Plug Controllers When glow plugs fail, the glow plug controller is often overlooked as a possible cause. The next time you replace your glow plugs, replace your controllers as well with these units from Diesel Rx! Diesel Rx glow plug controllers are durable and reliable. They are made with top-quality internal components, provide better insulation than standard controllers, and are available for a variety of applications. PN# DRX01004, GPR11, GPC1001
