Doosan D320039 Bearing for B40/45/50X5 Forklift Trucks

Overview

The D320039 Bearing is a Doosan-branded replacement part for selected electric and diesel forklift trucks. Bearings support rotating shafts, mast rollers and other moving components, reduce friction and keep the truck running smoothly under load. When a bearing wears, operators often notice rumbling noises, vibration or extra play in moving parts. Left unaddressed, a failing bearing can damage the surrounding shaft or housing and cause unplanned downtime. Fitting the correct D320039 Bearing restores proper fit and smooth operation, making it a sensible spare to hold in stock for fleets running the B40/45/50X5, D35/40/45S-2 and D40/45/50SC-2 series trucks.

Compatibility

The D320039 Bearing is listed for the following Doosan forklift families:

• B40/45/50X5 series – electric counterbalance trucks, listed under application code (SB1085)
• D35/40/45S-2 series – diesel counterbalance trucks, referenced under application codes (A231526) and (SB1077)(F.C.U)
• D40/45/50SC-2 series – diesel counterbalance trucks, likewise referenced under (A231526) and (SB1077)(F.C.U)

If you need the D320039 for B40/45/50X5 trucks or for either diesel series, confirm fitment against your truck’s model and serial number before ordering. No cross-reference OEM numbers are published for this part, so the Doosan part number D320039 is the definitive identification reference.

Quality and Reliability

Because the D320039 Bearing carries the Doosan part number, it is manufactured to the same specification as the component originally fitted to these trucks. That means correct dimensions, correct seating and predictable service life when the part is installed according to the manufacturer’s guidance. Sourcing by the exact part number, rather than an approximate match, helps ensure the bearing runs true and does not introduce premature wear to the shaft or housing.

Installation and Maintenance Tips

• Verify that the part number on the removed bearing matches D320039 before installing the new one.
• Use a puller or press to remove and fit the bearing; never drive it into place with a hammer against the race.
• Inspect the shaft and housing for scoring, corrosion or wear, and correct any damage before fitting the new bearing.
• Keep the housing and new bearing clean, and lubricate at the intervals set out in the Doosan service manual.
• Check adjacent seals while the assembly is open and replace any that show hardening or leakage.
• Record the replacement in your maintenance log so future servicing follows a consistent schedule.

Why Order from Us

forkliftpartssearch.com specializes in forklift spare parts, including a wide range of Doosan components for electric and diesel trucks. When you order the D320039 Bearing from us you benefit from accurate part-number identification, support from a team that understands forklift applications, and help verifying fitment against your model and serial number. If you are unsure whether the D320039 Bearing suits your B40/45/50X5, D35/40/45S-2 or D40/45/50SC-2 truck, send us your truck details and we will confirm the correct part for your application.