Exhaust Clocking Ring - Cummins R2.8 DOC Clocking Adapter Cummins R2.8 DOC Clocking Adapter Two Positions to clock DOC filter away from Engine Mild Steel Made in USA Kit# EX-00003 Parts included in Kit: Exhaust clocking Adapter Part# QDB-210010 Exhaust Gasket Part# QDB-220032 Qty 1:... MSRP: Was: Now: $95.00 Add to Cart