Premium Balancer Series - Stock Replacement Harmonic Balancer 01-05 GM 6.6L Duramax LB7/LLY XDP Xtreme Diesel Performance four remotes SYS-KMC D Fits in a

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Premium Balancer Series - Stock Replacement Harmonic Balancer 01-05 GM 6.6L Duramax LB7/LLY XDP Xtreme Diesel Performance four remotes SYS-KMC D Fits in aThe XDP Premium Balancer Series Stock Replacement Harmonic Balancer XD709 is an ideal replacement for the worn harmonic balancer on your GM 6. 6L Duramax LB7 LLY. A harmonic balancer (also known as a crankshaft vibration damper) serves more than just the function of spinning the pulleys on an engine. It is designed to help eliminate engine harmonics, reducing vibrations that might otherwise transfer into the cab of your truck. Composed of three