The ES400B is the later revision of the ES400 platform and several of its parts are genuinely different from the ES400A — the controller, the central control system, the deck and the IoT module among them. Parts below are listed only where the product label names the ES400B. Levy lists 30 parts whose own label names the ES400B, plus 105 shared ES400 family parts.
From $48.00
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Fitment and prices on this page were checked against the live product pages at shop.levyelectric.com on August 25, 2026. Prices change; the product page is always the authority. Compatibility that Levy has not confirmed is marked as unconfirmed rather than guessed.
Each row below is a product whose own title names the ES400B. Nothing here is inferred from a part number or a photograph — a fleet part that half-fits is a vehicle off the road, so the rule is that the label decides.
These are titled “OKAI ES400” without an A or B suffix, meaning they are platform parts rather than revision-specific ones. They apply to the ES400B as part of the ES400 family. If a part exists in both a family version and a revision-specific version, order the revision-specific one.
Levy stocks the OKAI ES400B Battery, listed for the Okai ES400B and priced from $476.51. Okai packs are not cross-compatible between models, so order the pack whose own label names your scooter.
The Okai ES400 charger comes in two connector variants, a barrel jack and a HiGo. Check the charge port on the scooter before ordering.
Some do and some do not, and the product label is the authority. A part titled "ES400A/B" is listed for both revisions. A part titled for only one is listed for only one — the controller, the central control system, the deck covers and the display are all cases where the two revisions differ. Parts titled "OKAI ES400" without a suffix are family parts shared across the platform.
Levy stocks an ES400 rear tire and an ES400 front wheel set with the tire already mounted. Separately, the 10 x 2.5 tire Levy stocks for the Segway Max series is listed as also fitting Okai ES400 series scooters.
Need a Segway Max part instead? Segway Ninebot Max parts covers the other fleet platform Levy supplies.
