50028403 Switch for Jungheinrich EFX, FB & MK 5 Models

Overview

The 50028403 Switch is a replacement electrical switch for a range of Jungheinrich materials handling equipment, including the EFX 100/125, FB 10-15 and MK 5 series. Switches carry operator inputs, activate safety circuits and keep travel, lift and hydraulic functions responding as they should. When one starts to fail, symptoms such as intermittent operation or unresponsive controls quickly hit productivity, so fitting the correct 50028403 Switch restores safe, dependable performance.

Compatibility

The 50028403 is listed by Jungheinrich as fitting the following model families:

• EFX 100/125 series – EFX trucks in the 100 and 125 configurations.
• FB 10-15 series – FB-series electric trucks covering the 10 to 15 range.
• MK 5 variants (KOM) – MK 5 generation trucks, including (KOM) configuration codes.
• Further FB models – additional FB-series trucks listed in the manufacturer’s fitment data.

Because Jungheinrich configuration codes vary by generation and equipment options, always confirm fitment against your truck’s data plate and serial number — or send us the details and we will verify the 50028403 for EFX, FB or MK 5 application before you order.

Quality and Reliability

Every 50028403 Switch we supply is sourced to meet Jungheinrich’s original specification, so dimensions, connectors and electrical ratings line up with the component fitted at the factory. A correctly matched switch maintains consistent actuation and reliable contact performance through the daily start-stop duty cycles of warehouse and industrial operation. Choosing a properly specified replacement instead of an improvised alternative also protects surrounding wiring and control modules from faults caused by poor contacts or misalignment, helping avoid repeat downtime and secondary repairs.

Installation and Maintenance Tips

• Disconnect the battery and follow your site’s lockout/tagout procedure before working on any electrical component.
• Photograph connector positions and label wires before removing the old switch.
• Inspect wiring looms, terminals and connectors for corrosion or damage while the switch is accessible.
• Seat the new 50028403 Switch fully, secure it at the original fixing points and avoid over-tightening plastic housings.
• Restore power and test every affected function, including safety interlocks, before returning the truck to service.
• Add switch checks to routine maintenance intervals so wear is caught early.

If you do not carry out electrical work in-house, always have the replacement fitted by a qualified forklift technician in line with the Jungheinrich service manual.

Why Order from Us

At forkliftpartssearch.com we specialise in Jungheinrich spare parts for both current and legacy trucks. When you order the 50028403 Switch from us, you get accurate fitment support from a team that works with these references every day, clear and straightforward quotations, and access to a broad catalogue covering Jungheinrich electrical, hydraulic and drive components. If you are unsure whether 50028403 for EFX, FB or MK 5 equipment is the right reference, send us your model and serial number and we will confirm the correct part before you commit to the purchase.