DETROIT SERIES 60 12.7L, (USED) Detroit Series 60 12.7 DDEC 4 Diesel Engine Computer Module, ECM, ECU, for sale!!!! P/N: R23519307 Stock #: E1784 For more information about this listing, shipping, technical questions email us at sales@jjrebuilders.com or call 1-800- 971-3019. We