Linde 0009441799 Non-Return Valve for D12 D14 Forklifts

Overview

The 0009441799 non-return valve is a hydraulic check valve specified by Linde for its compact diesel forklift range. Within the hydraulic circuit, a non-return valve allows oil to travel in one direction only and blocks reverse flow. This simple but critical function helps the system hold pressure between operating cycles, supports stable lifting and lowering, and protects the pump and cylinders from backflow-related wear.

When a non-return valve sticks open or seats poorly, operators may notice slow or weak lifting, forks drifting down under load, or erratic hydraulic response. Replacing a worn valve with the correct Linde part number is the reliable way to restore consistent hydraulic performance.

Compatibility

The 0009441799 for D12 applications covers the Linde D12 and D14 diesel forklift families. The confirmed fitment list, grouped by series, is:

• D12 series: D12, D12AP, D12AP HP and D12SP variants
• D14 series: D14 and D14AP variants

No alternative OEM cross-reference numbers are currently listed for this component, so the Linde part number 0009441799 is the definitive identifier. Always confirm the number stamped on your existing valve, or check your truck’s parts documentation, before ordering.

Quality and Reliability

Check valves are small components with a big impact: internal leakage past a worn seat can undermine the whole hydraulic circuit. This 0009441799 non-return valve is referenced under the original Linde part number, so it is intended to match the fit, sealing function and flow behavior of the valve originally fitted to the truck. Choosing the specified part helps maintain predictable lift performance and reduces the risk of repeat hydraulic faults.

Installation and Maintenance Tips

• Relieve hydraulic pressure and fully lower the forks before starting work.
• Clean the valve area thoroughly so no dirt enters the hydraulic circuit.
• Fit new O-rings or seals and inspect mating surfaces for damage.
• Tighten to the specified torque; avoid over-tightening the housing.
• After installation, cycle the lift hydraulics and check for leaks.
• Keep hydraulic oil and filters in good condition — contamination is a common cause of check valve failure.
• If you are not experienced with hydraulic repairs, have a qualified forklift technician carry out the replacement.

Why Order from Us

Forkliftpartssearch.com specializes in forklift spare parts, including a broad range of Linde components for diesel, LPG and electric trucks. Our team can help you verify that the 0009441799 non-return valve matches your truck’s model and serial number before you order. Browse the catalogue or contact our parts specialists for help identifying any Linde component.