IYB B-Series Off-Road Semi for BeamNG.drive
All-wheel-drive off-road semi truck, rebuilt in 2025: 13 configs, 9 frames, 12 engines and 10 gearboxes in the free Repository version.
Download IYB B-Series Off-Road Semi
More screenshots on Official BeamNG Repository (beamng.com/resources) ↗
What this mod does
IYB B-Series Off-Road Semi is an all-wheel-drive off-road semi truck created by ItsYourBoi, one of the most downloaded vehicles in the Repository’s Mods of Mods section. In 2025 it was almost completely rebuilt: most of the 3D models are new and there are several brand-new parts.
What the free version includes
- 13 ready-to-use configurations.
- 9 different frames.
- 12 engines and 10 gearboxes.
- Other minor additions, like a new roll bar.
The author stresses that the Repository version is complete, not a demo. Separately, they sell a paid expansion on Gumroad, “B-Series Extension”, with more content.
Who it’s for
If you like sending huge trucks through mud, rough trails and steep slopes, this semi is one of the most complete in the Repository: it’s an all-wheel-drive semi truck built for off-roading, with a range of frames, engines and gearboxes that lets you build anything from work setups to full-on mud monsters.
Known issues
If textures or models don’t load, delete the old B-Series files and restart the game, as the author advises. Version 2.3, from April 22, 2026, fixed seat textures, but in June 2026 a user was still seeing untextured engines. It predates 0.39, so it may need tweaks in newer game versions.
User rating
Highlights and things to keep in mind
- Very complete and very popular off-road truck
- Lots of frames, engines and gearboxes
- Almost completely rebuilt in 2025
- Some users see missing textures
- Very large file, about 462 MB
- Some of the content is in a paid expansion
- Latest version predates 0.39
- May need an update for 0.40 (released October 19, 2026)
Requirements
- BeamNG.drive 0.38 or later
- About 462 MB of free space for the .zip file
How to install it
- Open the IYB B-Series Off-Road Semi page on the official BeamNG Repository.
- Click Download to get the .zip, or subscribe from the in-game Repository (Subscribe button).
- If you download it manually, copy the .zip (don't unzip it) into the mods folder inside your BeamNG.drive user folder.
- Launch the game and check in the Mod Manager that it's enabled.
- If you had an old version of the B-Series, delete it first; then find it in the vehicle selector and pick one of its 13 configurations.
Version history
-
2.322 Apr 2026Current
Bug fixes and other additions.
-
—9 Apr 2025
Complete B-Series rebuild.
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—2 Feb 2022
New roll bar, fixes and tweaks.
Common problems
Textures or models are missing. What should I do?
Delete the old B-Series files from your mods folder and restart the game.
Is the free version a demo?
No: the author says it's complete. The B-Series Extension on Gumroad is a separate, paid expansion.
When I link two trucks, the second one no longer steers. Is that normal?
A user mentioned it in May 2026: they now mirror the throttle but not the steering.
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