Cummins 6BT 5.9 Piston Kit - New

New-old-stock piston kit for the Cummins 6BT 5.9L inline-6 diesel, as marked on the original box. Aluminum piston with reentrant combustion bowl, clean ring grooves, and unused wrist pin bore. Suits the wide range of 6BT 5.9 marine, industrial, and on-highway applications — buyer to confirm turbo vs. naturally aspirated bowl style and standard vs. oversize before purchase. Condition: New (unused, aged box). Buyer must confirm fitment by part number, photos, dimensions, engine model, serial number, and application before purchase.