Type: 10 Bolt Intake Manifold Plenum. 2pcs of Intake Manifold Plenums 10 Bolts. For 1996-2003 Ford 7.3L Powerstroke Diesel. 10 Bolt Plenums ONLY! Replace OE/OEM Part Number: 210331. Machined Perfect Seal : achieving a flawless seal to the head,ensure airtight performance.