4 0 Caterpillar C7 Engine Harmonic Balancer $45 USD Quality used harmonic balancer/vibration damper, Caterpillar, CAT C7, 3116, 3126, 2003-07, Low Cost, Warranty, Fast Nationwide Shipping! Please note that the part sent may not precisely... ConditionUsedStock Number42-3389809-STK MLS Number11704665CategoryEngine Harmonic Balancers Last Updated9/24/2025 LocationBig Lake, MN, US Sold ByQuality Bus and Truck Parts (844) 580-___ SHOWNUMBERCall Seller Email Seller Save More Info