Doosan Forklift Hydraulic Left Pipe Ass’y A376788 – D20G D25G D30G

Doosan Forklift Hydraulic Left Pipe Assembly A376788 — D20G / D25G / D30G

The A376788 left pipe assembly is the OEM hydraulic line for Doosan D20G, D25G, and D30G forklifts. This pre-formed metal pipe routes hydraulic oil on the left side of the forklift chassis, connecting the hydraulic system components with factory-specified bend angles and fitting types for exact fitment without modification. The left pipe designation indicates this assembly is specific to the left-side hydraulic circuit — the right-side pipe uses a different part number due to mirror-image routing through the forklift frame. At the stock listing price, this is an economical direct replacement for a damaged, corroded, or leaking original Doosan hydraulic pipe.

This pipe assembly fits all three D-G series models (2-ton D20G, 2.5-ton D25G, and 3-ton D30G) in both diesel and LPG configurations — the hydraulic pipe routing is identical across the D-G series chassis. The A376788 left pipe carries hydraulic fluid to or from one of the working circuits (typically steering, mast lift, or tilt depending on the specific Doosan hydraulic system layout). Common failure modes include: pinhole leak from corrosion or stone damage to the pipe body, cracked flare fitting from over-tightening during previous service, and restricted flow from internal pipe blockage. External hydraulic leaks are a safety hazard and must be addressed immediately.

Installation requires depressurizing the hydraulic system and disconnecting the old pipe at both fitting ends. Always replace the sealing washers or O-rings at the banjo, flare, or compression fitting connections. Route the replacement pipe following the original path and secure with the factory mounting clamps to prevent vibration-related fatigue cracking. After installation, bleed the affected circuit and check all connections at operating pressure. For related Doosan hydraulic components, browse our Forklift Hydraulic System catalog.

Technical Specifications

Compatible Forklift Models

Each pipe assembly is packaged for safe transport. Standard air freight delivery to major ports worldwide. For compatibility verification or bulk orders, contact our team with your Doosan model and serial number.