The Meritor Spline Plug, part number 121N40-1741 or 121N401741, is a genuine Meritor driveline component designed to seal or cap splined shafts in heavy-duty driveline assemblies. Spline plugs are used to close off exposed spline bores, preventing contamination and retaining lubrication where the driveshaft or slip assembly requires it. If you need to verify that this is the correct plug for your specific driveline configuration, Pro Gear and Transmission carries genuine Meritor parts and can help you confirm proper fitment. Call us before ordering if you have any application questions.
Features
Genuine Meritor driveline component
Part number 121N40-1741 or 121N401741
Designed to seal or cap splined shaft bores in heavy-duty driveline applications
Helps prevent contamination and retain lubrication at the spline bore
Sold by Pro Gear and Transmission - call to confirm fit for your application
