The OTTO Long Cylinder Head is a professional engine cylinder head component designed exclusively for 4HK1 engines in excavators. It provides a secure foundation for valves, valve seats, and other top-end engine parts, ensuring airtight sealing, smooth valve operation, and consistent engine power output—essential for restoring engine functionality and minimizing downtime in harsh heavy-duty working environments.

Maximize your excavator's hydraulic system performance with the OTTO HPV118 Hydraulic Pump Head Cover (P/N: 312710), a premium aftermarket replacement designed for durability and precise fitment. This high-quality head cover is a critical excavator part for Hitachi ZAX200-3, restoring reliable sealing and protection to the HPV118 hydraulic pump, while offering a cost-effective alternative to OEM parts.

This used for EXCAVATOR,Original new and china could offer and With 3-12 months warranty