16Pcs Active Fuel Management Valve Hydraulic Roller Lifters and Guide Trays Compatible with Chevy GMC Cadillac Buick Pontiac 4.3L 5.3L 6.0L 6.2L OE#12569256 12645725 12680871

The media could not be loaded. Dropped a valve seat and decided to Upgrade the rocker arms from the factory ones in my 2001 Dodge Dakota 4.7l. Smaller oil passage allows for more consistent pressure to keep from the common problem of rocker arms falling off on these old 4.7l.Easy install and all parts looked great upon arrival!

Do not buy this item i bought it for an engine rebuild for one of my customers and since day one we have a ticking noise and small misfire after diagnosis found 2 of the lifters collapsed since day one there is no help for refunds or returns,I will never ever in my life going to use this brand of lifters and there is no customer service for help,they don't stand behind the warranty and now we are stuck with a defective lifters and we have to pay again for gaskets to rebuild this engine again

Las partes solo funcionan de 2018 Silverado y gmc para abajo porque del 2019 cambian ya usan todos con resortes y los plásticos negros también cambian ojo con eso mi gente

Very well built and the rock very easy to put on ....

Garbage. Installed these lifters after letting them soak for several days in oil after completion of reassembly had a lifter fail to pump up causing a valve to not open and a nasty misfire. Absolute garbage don’t waste your money. Now I have to purchase a second head gasket kit and head bolts almost $500 worth of other parts to replace these pieces of junk. not to mention 20+ hours of labor.

It went on

So far so good in a 2011 Town and Country with 211k miles. They seem to be good quality. Will see how long they last.

Good quality parts