This is the Traxxas TRX 3.3 Racing Engine without Starter and with IPS (Integrated Pilot Shaft) Crankshaft. This version requires use of a bump starter or starter box and will not accept a pull start or the Traxxas EZ-Start system.

The Team Associated .12 and .15 pull start engines are ABC engines, having an Aluminum piston with a Brass sleeve, Chrome plated. They have TRUE 90 porting.

The XTM 18 is a high performance rear exhaust buggy engine with twin needle rotary carburetor. There are four versions available: Pull-start & regular crank, pull-start & SG style crank, non pull-start & regular crank and non pull-start & SG style crank. All XTM Racing engines are designed for high power output and easy handling. The XTM Racing .18 engine features a dual ball bearing supported crankshaft, true ABC piston and sleeve, rotary carburetor, heat dissipating cylinder head and superb attention to detail and quality.