Kenworth W900 Stretch + more axles (long 8×6 chassis for the SCS W900) for American Truck Simulator

What this mod does

Kenworth W900 Stretch + more axles gives the official Kenworth W900 in American Truck Simulator a stretched long 8×6 chassis, with more axles than any base-game chassis. It is a parts mod by fiori242, the same author as PeterBilt 389 stretched; it is free and weighs 8.3 MB. The author jokes in the description that this truck should not exist, but it does.

What it includes

• A new chassis called «chassis long 8×6 stretch», the first one in the W900 chassis list.
• Front and rear mudflaps can be removed from the customize section.
• It works on the base-game W900: it is not a standalone truck.

Version and compatibility

The author does not state an ATS version; the mod was released on November 6, 2026, with 1.62 already out. Steam lists no required DLC or mods. In its first three days it has almost 600 subscribers and three comments, all positive and with no error reports.

How to use it

With the mod enabled, take a Kenworth W900 to the shop, open the chassis section and pick «chassis long 8×6 stretch». Trailers hook up at the end of the chassis, so the rig gets very long: be careful at gas stations and tight parking lots. Unofficial mod: trademarks belong to their owners; neither Holymod nor the author is affiliated with them.

Requirements

• American Truck Simulator (no minimum version stated by the author)
• Base-game Kenworth W900 (no DLC or other mods required, per Steam)
• Steam account

How to install it

1. Open the mod page on Steam Workshop and click Subscribe.
2. Start ATS, open the Mod Manager and enable Kenworth W900 Stretch + more axles.
3. Load your profile and take a Kenworth W900 to the shop.
4. In the chassis section pick "chassis long 8x6 stretch" (the first in the list).
5. If you want, remove the front and rear mudflaps from the customize section.

Version history

1. 1.06 Nov 2026Current

   Released on Steam Workshop

Common problems