Dynamic Fuel Management
Lifter and Guide Assembly for GM Gen V LS Engines, 2019 and up 5.3L (L84) and 6.2L (L87) Engines Equipped with DFM (Dynamic Fuel Management)
Complete kit includes the following GM replacement part numbers:
(16) # 12698946, (4) # 12664915
Lifters and guides are pre-assembled and ready to drop in, boxed as kit HLG-7025FRA. This is the newest version of the de-act lifter. Designed for heavy duty service of the modern Gen 5 LT engine.
