General description 8Pcs for Yanmar Engine Parts 4TNV86 Intake Valve with Exhaust Valve Bolt Set is designed for excavator engine applications. This set includes essential bolts made from durable metal, ensuring reliable performance in engine assembly. Technical specifications Type: Excavator Engine Bolt Material: Metal Color: Black Model Number: 4TNV86 Package Contents: 8 Pcs x Bolt Measurement allowed error: +/- 1-3 cm