Enhance your Cummins engine's performance with this plain washers, designed specifically for models 6C, QSL9, 6L8.9, and C8.3. These washers are precision-manufactured in China to meet the exact specifications required for optimal engine function, ensuring a perfect fit and reliable operation. Part number 3945241 is your assurance of quality and compatibility. With these washers, you can maintain or upgrade your engine's components, giving you the peace of mind you need for smooth and efficient operation.