3 0 Caterpillar 3126E Engine Harmonic Balancer $45 USD Quality used Harmonic Balancer for Caterpillar 3126E, backed by our standard warranty. OEM # 167-8121,167 8121, 1678121 Please Note: The part sent may not exactly match the one pictured.... ConditionUsedStock Number42-1678121-STK MLS Number13680351CategoryEngine Harmonic Balancers Last Updated8/19/2025 LocationBig Lake, MN, US Sold ByQuality Bus and Truck Parts (844) 580-___ SHOWNUMBERCall Seller Email Seller Save More Info