View 6 Photos View 0 Videos Cummins ISC 8.3CR Intake Manifold Newly Listed $75 USD Good used, cleaned and inspected Cummins ISC 8.3CR intake manifold elbow. Part number: 3968371. ConditionUsedFits To Make(s)CUMMINSFits To Model(s)ISC 8.3CRPart Number3968371Stock NumberRyd 3968371 MLS Number14315413CategoryIntake Manifolds Last Updated4/16/2026 LocationFitchburg, MA, US Sold ByRydemore Heavy Duty Truck Parts (888) 519-___ SHOWNUMBERCall Seller Email Seller Save More Info