| 5204 | Engine, IPS Shaft w/o starter
For use in all Traxxas TRX 2.5 equipped vehicles. Requires use of an electric bump starter or starter box. Does not accept a pull start or the Traxxas EZ-Start® system. Not for Maxx trucks or other models without flywheel access. | 
|
| 5206 | Engine, Multi-Shaft w/o starter
Includes threaded crankshaft inserts for "short" and "standard" applications. Requires use of an electric bump starter or starter box. Does not accept a pull start or the Traxxas EZ-Start® system. | 
|
| 5207 | Engine, IPS Shaft w/ recoil pull starter
For use in all Traxxas TRX 2.5 equipped vehicles. Pull starter can be removed to install the Traxxas EZ-Start® system (sold separately). | 
|
| 5208 | Engine, Multi-Shaft Marine w/ recoil pull starter
Includes threaded crankshaft inserts for "short" and "standard" applications. Pull starter can be removed to install the Traxxas EZ-Start® system (sold separately). | 
|
| 5209 | Engine, Multi-Shaft w/ recoil starter
Includes threaded crankshaft inserts for "short" and "standard" applications. Pull starter can be removed to install the Traxxas EZ-Start® system (sold separately). | 
|
| 5207R | TRX 2.5R Engine
The TRX 2.5R features the Powertune™ machined aluminum cooling head that promotes even heat distribution for stable engine temps and rock-solid tuning consistency. Other mods include a new sleeve for improved engine efficiency and better power. | 
|
