Engine and Transmission compilation mod (Rookie_One) for American Truck Simulator
A compilation of engines, transmissions and sounds set up with official specs, for SCS and modded trucks. Updated for 1.61 on October 24, 2026.
Download Engine and Transmission compilation mod (Rookie_One)
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What this mod does
Engine and Transmission compilation mod is a compilation by Rookie_One with engines, transmissions and sounds for American Truck Simulator. It has more than 85,000 subscribers. Each engine is set up according to its official specs. That’s why some versions look duplicated, like two ISX15 600s, but have different torque and curves.
What’s included
- Cummins with Eaton Integrated and Endurant HD, PACCAR MX with TX-12 and TX-18, and Detroit with DT12.
- Volvo with four XE variants, and gearboxes with low-range gears that raise the maximum weight.
- A dedicated sound for each engine.
- Compatible with GTM’s W900B, T800 and Peterbilt 567, Harven’s W990, the T880, the K100E and the Peterbilt 379X.
Compatibility
It’s not compatible with standalone sound mods. The author recommends using it with Real Eaton Fuller Transmissions, Sound Fixes Pack and Smarty’s Wheel Pack.
Credits
It builds on engine mods by Galimim, Smarty, vsTerminus, Boeing73FLY and LoaderSaint, which he credits. The sounds are mostly by Kriechbaum, with others by Robinicus, SlavJerry, SCS and Drive Safely.
Version
On September 15, 2026 he released 1.61 compatibility. On October 24 he dropped support for 1.50 to 1.54. He also added the 1.61 crawl function for automatic transmissions.
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User rating
Our rating
0.0 / 5- Engines and transmissions with official data
- Updated for 1.61
- Compatible with very popular modded trucks
- It needs several truck DLCs, which Steam lists as required
- Not compatible with standalone sound mods
- It bundles engines and sounds by other authors, credited on the page
- Unofficial mod: the brands belong to their owners; neither Holymod nor the author is affiliated with them
Requirements
Links go to each DLC’s official Steam page.
- American Truck Simulator updated to 1.61
- Truck DLCs that Steam lists as required: Kenworth T680, Peterbilt 579, Kenworth W900, Peterbilt 389, Mack Anthem, Freightliner Cascadia, Western Star 49X, International LT, International 9900i and Western Star 57X
- Not compatible with standalone sound mods
- Recommended: Real Eaton Fuller Transmissions, Sound Fixes Pack and Smarty's Wheel Pack
How to install it
- Open the mod's page on Steam Workshop and click “Subscribe”.
- Wait for Steam to download it and launch American Truck Simulator.
- In the Mod Manager, enable Engine and Transmission compilation mod and confirm the changes.
- Disable any standalone engine sound mods.
- At the service shop, pick the engine and transmission you want.
Version history
-
24 Oct 2026Current
Removes compatibility with 1.54 to 1.50; crawl function for automatic transmissions
-
15 Sep 2026
1.61 compatibility
Common problems
Can I use it with engine sound mods?
No, the author warns that it isn't compatible with standalone sound mods.
Why are there duplicate engines?
They're official variants with different torque and curves, according to the author.
Does it work on 1.50 to 1.54?
Not anymore: the author dropped that support on October 24, 2026.
More mods for ATS
ATS 1.60 
ATS 1.59 
