PeterBilt 389 stretched (stretched chassis for the SCS 389) for American Truck Simulator
Custom stretched chassis for the SCS Peterbilt 389 in ATS, with a selectable chassis color. Free on Steam Workshop, 1.5 MB; released November 5, 2026 and already past 1,400 subscribers.
Download PeterBilt 389 stretched (stretched chassis for the SCS 389)
Official screenshots by the author: © fiori242 on Steam WorkshopMore screenshots on steamcommunity.com ↗
What this mod does
PeterBilt 389 stretched, by fiori242, gives the official Peterbilt 389 in American Truck Simulator a stretched chassis in the style of American show trucks. It is a parts mod, not a new truck: it uses the base-game 389 and only adds the chassis option. It is free, weighs 1.5 MB and passed 1,400 subscribers in its first four days on Steam Workshop.
What it includes
- A stretched chassis for the SCS Peterbilt 389.
- According to one user, it is the first time they could pick the chassis color on an SCS truck.
- The same author publishes Kenworth W900 Stretch + more axles, the same idea for the W900.
Version and compatibility
The author does not state an ATS version; the mod was released on November 5, 2026, with 1.62 already out. Steam lists no required DLC or mods. The description is a single line, so there are no change notes or known-issues list.
How to use it
Once enabled, take your Peterbilt 389 to the shop and look for the new chassis in the chassis section. All three comments are positive and nobody reports errors. Unofficial mod: trademarks belong to their owners; neither Holymod nor the author is affiliated with them.
Holyfix Check
Will it work with your mods?
Load your game.log.txt and check whether this mod is for your ATS version, whether you're missing a mod or DLC it needs and where to place it.
It's in Documents › American Truck Simulator › game.log.txt. It's read in your browser: the file is never uploaded.
Something else failing? Holyfix for ATS checks all your mods at once.
User rating
Highlights and things to keep in mind
- Stretched chassis for the official 389 in a 1.5 MB file
- Selectable chassis color, according to users
- Over 1,400 subscribers in its first four days
- The author does not state the game version it is tested on; Holyfix warns you if it throws errors
- The description is one line: no change notes or known-issues list
- 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 Peterbilt 389 (no DLC or other mods required, per Steam)
- Steam account
How to install it
- Open the mod page on Steam Workshop and click Subscribe.
- Start ATS, open the Mod Manager and enable PeterBilt 389 stretched.
- Load your profile and take a Peterbilt 389 to the shop (or buy one at the Peterbilt dealer).
- In the chassis section pick the new stretched chassis and adjust accessories and fenders to taste.
Version history
-
1.05 Nov 2026Current
Released on Steam Workshop
Common problems
Is it a new truck?
No: it is a part (chassis) for the official SCS Peterbilt 389.
Does it work on 1.62?
The author does not say; the mod came out on November 5, 2026, after 1.62 was released, and nobody reports problems.
Does it need DLC?
No: Steam lists no required DLC or mods.
Is there something similar for the Kenworth W900?
Yes, the same author publishes Kenworth W900 Stretch + more axles.
More mods for ATS
✓ ATS 1.61 
ATS 1.59 
ATS 1.60 
✓ ATS 1.61 
✓ ATS 1.61Requires DLC