D555081 SWITCH AS-MAGNET for Doosan B15/18/20T5 Forklifts

Overview

The D555081 SWITCH AS-MAGNET is a magnetic switch assembly built to Doosan specifications for the brand’s electric counterbalance forklifts. It functions as an electrically operated switch in the truck’s control circuit, using an electromagnet to open and close contacts so current can be routed to drive and auxiliary functions without manual switching. When a magnetic switch wears out, operators may notice intermittent power delivery, clicking without engagement, or loss of function in the affected circuit. Fitting the correct D555081 assembly restores dependable switching and helps protect nearby electrical components from stress caused by arcing or poor contact. Because it is referenced by its original Doosan part number, D555081, this unit is intended as a direct-fit replacement for the compatible models listed below.

Compatibility

The D555081 for B15/18/20T5(SB1065)(36V/AC, MOTOR) trucks is one of several applications for this switch. Fitment covers two Doosan electric forklift families:

• B15/18/20T5 series (AC motor trucks): B15/18/20T5(SB1065)(36V/AC, MOTOR) and B15/18/20T5(SB1066)(48V/AC.SE, MOTOR)
• B15/18S series electric trucks: B15/18S2 (SB1030) and B15/18S5 (SB1086)

Electric forklift configurations can vary within a series by voltage and build date, so we recommend confirming your model and serial number against the parts manual before ordering. If you are unsure, our team can help verify fitment using your truck’s data plate details.

Quality and Reliability

This switch assembly is supplied as a Doosan-referenced replacement part, produced to match the dimensions, terminal layout, and electrical behavior of the original component. A correctly specified magnetic switch delivers clean contact closure and a consistent pull-in and release cycle, essential in the stop-start environment of warehouse material handling. Ordering by the exact part number for your model reduces the risk of mismatched connectors or unsuitable ratings that can come with generic substitutes.

Installation and Maintenance Tips

Before you fit the new switch:

• Isolate and disconnect the battery before removing the old switch, especially on 36V and 48V trucks.
• Label or photograph wiring positions before disassembly to speed up reconnection.
• Inspect cable lugs and terminals for corrosion or heat damage and replace degraded conductors.
• Mount the new assembly securely and keep wiring free of mechanical strain.
• After installation, test the affected circuit and check for abnormal heat or contact chatter.
• During scheduled service, check connections for tightness and signs of arcing.

Why Order from Us

At forkliftpartssearch.com we focus on replacement parts for Doosan forklifts and other major brands. We match every order to the exact part number, such as D555081, and offer fitment assistance before you buy. Whether you maintain a single electric truck or an entire B15/18/20T5 and B15/18S fleet, our team is ready to help you identify and order the correct component quickly.