51039638 Cylinder, Lift for Jungheinrich DFG 425s Forklifts

Overview

The 51039638 Cylinder, Lift is a replacement lift cylinder for Jungheinrich forklifts and pallet trucks. The lift cylinder is the heart of the mast hydraulics: it converts oil pressure into the vertical force that raises and holds every load. When a cylinder starts to leak, drift under load or lift slowly, both productivity and safety suffer. Fitting the correct 51039638 Cylinder, Lift restores smooth, consistent lifting and helps protect the rest of the hydraulic circuit from contamination.

Compatibility

The 51039638 for 2WP4500 Jungheinrich trucks is the most common application for this cylinder. It also fits the Jungheinrich DFG series of internal combustion counterbalance forklifts, covering the DFG 320s, DFG 425s and DFG 430s models (often grouped as the DFG 320/425/430s series). Before ordering, confirm the number stamped on your existing cylinder or send us your model and serial number and our team will verify fitment for you.

Quality and Reliability

This lift cylinder is produced to match the original Jungheinrich specification for dimensions, stroke and mounting points, so it installs as a direct replacement. Precision-machined rod surfaces and durable sealing rings are designed to withstand the high pressures and repeated lifting cycles of daily warehouse and dock duty. Specifying the exact part number – rather than a loose “close match” – reduces the risk of mast misalignment, uneven lifting and premature seal wear.

Installation and Maintenance Tips

• Fully lower the mast or carriage and release all hydraulic pressure before starting work.
• Secure the truck and support raised components with approved stands; never rely on hydraulics alone.
• Disconnect hydraulic lines and cap them immediately to keep dirt out of the system.
• Inspect hoses, fittings and the cylinder rod for scoring or corrosion, and replace worn hardware at the same time.
• After installing the 51039638 cylinder, refill and bleed the circuit, cycle the mast slowly and check for leaks before returning the truck to service.

Why Order from Us

Forklift spare parts are the core business at forkliftpartssearch.com, not a side category. When you order the 51039638 Cylinder, Lift from us, you get fitment support from people who understand Jungheinrich model codes and part numbering, careful handling of hydraulic components, and clear communication at every step. Need help cross-checking a reference or confirming your model? Contact our team before you buy. Keep your Jungheinrich trucks lifting safely – order part number 51039638 today.