SEBO Swivel Neck for the 300 and 350 MECHANICAL — Complete, 2-Wire, Light Gray

Steering an upright depends on the neck joining the handle tube to the base, and on a SEBO 300 MECHANICAL or 350 MECHANICAL that same joint also carries the two-wire supply down to the cleaning head. Part 50448HG is that assembly supplied whole in light gray, so the pivot and the wiring run are renewed together.

Wear here reads as heavy or notchy steering, or as power at the head that cuts in and out while the handle is swung side to side. The second symptom is the one to act on quickly, because it means a conductor inside the neck is flexing across a break, and an intermittent connection under load is not something that improves on its own. Patching one half of the problem rarely holds for long; a full neck restores the mechanical joint and the electrical path in a single fitting.

The neck is carried in the chassis by a support on each side, and SEBO lists those separately: 50439ER is the left-hand swivel neck support and 50440ER the right-hand one. If either has spread or cracked, a new neck will not sit square and the fresh joint will wear just as fast as the old one, so both deserve a look while the machine is open. The suction hose that runs alongside the neck is part 5040SB, and the drive belt underneath it on these machines is 5110.

• Part number: SEBO 50448HG
• Color: light gray
• Fits: SEBO 300 MECHANICAL and SEBO 350 MECHANICAL
• Supplied complete, with the two-wire connection already built in
• Confirm your machine uses the two-wire configuration before ordering
• Related part numbers: 50439ER left-hand and 50440ER right-hand swivel neck supports, 5040SB hose, 5110 belt
• Genuine SEBO assembly from an authorized dealer, shipping in 2-5 business days

Shoppers reach this listing looking for a SEBO 300 MECHANICAL swivel neck, a 350 MECHANICAL handle neck replacement, or the light gray two-wire neck by number. It is the same genuine SEBO assembly in every case, and it is the repair that puts both the steering and the power feed of a 300 or 350 back to standard in one go.