Take the performance of your Cummins 4B/6B engine to new heights with the Fortpro Piston Ring Set in size 040"/1.00 mm. This high quality piston ring set is designed specifically for engines that have been overbored to 0.40 inch , offering durable construction and superior oil control. With excellent sealing that ensures efficient combustion, these rings improve fuel efficiency and engine life. Perfect for those looking to maximize the power and efficiency of their vehicle. , this set of piston rings is the ultimate solution to keep your engine in optimal condition.
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