A-31431851-AI EXHAUST VALVEOne New Aftermarket Replacement Exhaust Valve for Perkins Engines This aftermarket replacement exhaust valve fits Perkins A4. 212, A4. 236, A4. 248, A6. 354, and A6. 372 diesel engines. These engines power a wide range of agricultural and industrial equipment from Fits Massey Ferguson, Claas, Landini, and Fits JCB. The valve seats in the cylinder head and controls the release of exhaust gases from the combustion chamber on each engine cycle. Verify