Wacker Neuson 1000257358 Proportional Valve

The Wacker Neuson Proportional Valve is a genuine OEM component designed for the TH627 telescopic handler. Sourced directly from Wacker Neuson, this part meets the exact specifications required to maintain accurate hydraulic flow control on the TH627. If your machine is experiencing sluggish, erratic, or unresponsive hydraulic movement, a worn or failed proportional valve is a common cause — and this direct OEM replacement restores proper operation. Verify your machine's parts list reference (418-02) before ordering to confirm fitment.

Key Features

• OEM-Matched Hydraulic Specification — Manufactured to the exact flow and pressure ratings required by the TH627 hydraulic circuit, ensuring accurate proportional control output.
• Direct-Fit Replacement — Matches the original valve's port configuration and mounting interface, allowing straightforward installation without custom adaptation.
• Confirmed TH627 Fitment — Verified against Wacker Neuson parts list 418-02 for the TH627 telescopic handler series.
• Restores Smooth Hydraulic Response — A correctly functioning proportional valve delivers precise, proportional movement of the boom and attachment functions — critical for load control and operator accuracy on the TH627.
• Safety-Critical Hydraulic Component — Proportional valves directly govern boom and load movement; using an OEM-spec part helps ensure the machine responds predictably and safely under load.

A proportional valve controls the rate and direction of hydraulic fluid flow in proportion to an electrical input signal — typically from the operator's joystick or control lever. On a telescopic handler like the TH627, this valve governs how smoothly and accurately the boom extends, lifts, and positions a load. When the proportional valve wears out or fails, symptoms can include jerky or unresponsive boom movement, drifting under load, or a complete loss of hydraulic function in one or more circuits. Replacing it with a genuine OEM part restores the precise control characteristics the machine was built to deliver.

Part Details

Compatibility & Fitment

Verify Before You Order

Fitment is machine-number and revision-specific; always confirm your model and serial number against the fitment list.

Why Buy From DHS Equipment

Every part is verified against the manufacturer's part number before it ships, so what you order is what arrives. We carry parts from leading OEM brands and our own DHS Quality Parts line of professional aftermarket components. Need help finding the right part? Our team is available to confirm compatibility whenever you need it. Orders are processed fast to keep your jobs on track. We don't just sell parts. We keep you jobsite ready.

Questions? Contact our team at [email protected] or 866-611-9369 — DHS Equipment is here to help you maintain peak performance.