4892293AC Rocker Arm Shaft Assembly for 1993-2011 Chrys-ler 300 Sebring Dodge Charger Challenger Magnum 3.5L 4.0L Engine

worked as described like oem but for a fraction of the cost

The fitment is good on cylinder head. The key issue is that it does not generate sufficient oil pressure in the lifters. Due to lifter not being able to sustain pressure, the exhaust/intake valves do not open sufficiently.As per quality, the plastic retainer and adjusters were loose in the packaging hurting my confidence in the product. In the OE assembly the hardware are not easily removable on the liftersIt was for a Dodge nitro 4.0. I performed compression test on the head. This was after a trip to the machine shop with a valve job and decked head.Two of the three cylinder compressions readings marked 0 psi with this product. The original assembly had the middle exhaust rocker arm merge itself into its mount limiting its travel. The original produced 180, 160, 210 psi.The original rocker assembly jetted oil upwards from its upper pin hole towards the hood. This product barely oozes out of the lifters.I returned the product and ordered a new one, hopefully this single one was defective.Update 12/15/22.The replacement arrived and was installed. Same problems but a minimal improvement.0 psi, 50 psi, and 180 psi.As a result, I do not recommend this product, sorry. I hope it was only a limited bad batch. Currently pending refund.