Part Number:4BT3.9 Full Gasket Kit&Piston Rings&Main/Con Rod Bearing. Engine Model:4BT3.9. For Cummins 4BT3.9 Engine. For CASE 570LXT 580K 580L W11B Backhoe Loader. 1 Set Full Gasket Kit with Head Gasket. 4 Sets STD Piston Rings. 1 Set STD Crankshaft / Main Bearing size Or over size +0,25/0.50mm. 1 Set STD Connecting Con Rod Bearing size Or over size +0,25/0.50mm. 1 Set STD Thrust Washer / Bearing. Professional installation is highly recommended. Please Check The Product Picture And Part Number Carefully To Make Sure It Is The Product You Want. Please feel free to ask us if you have any questions with this item. UPS Surepost usually takes 1-6 workdays. UPS Ground usually takes 1-5 workdays. If you don’t receive package over 30 business workdays, please inform us. Duty for International Buyers. We will do our best to offer you satisfied resolutions.