About This Item 1. MX 13 Engine Barring Tool — Works on 2011 – 2016 Kenworth and Peterbilt with engines PACCAR MX, PACCAR MX PMCI-2, PACCAR MX-13 PCI and PACCAR MX-13. Replaces 1453158PE & 1453158 2. Cummins Engine Barring Tool — Works on Dodge Pickups 3.9L, 5.9L, 6.7L & 8.3L diesels engines and Cummins B/C Series diesels engines. 3. Benefits — Works perfectly for barring over the engine to make clutch adjustments. Made of high quality 42 CrMo Steel ensure great tolerance and good performance. 4. Easy to use — Just insert the tool into the flywheel housing until it engages the ring gear, then attach a 1/2″ square drive ratchet or breaker bar and turn. .