O.S. MAX-21TM T-Maxx .21 Nitro Engine with 11K Carburetor

The O.S. MAX-21TM T-Maxx is a .21 nitro engine designed for compatible Traxxas T-Maxx applications. This version includes the O.S. 11K slide carburetor, providing a proven tuning platform with smooth throttle response, reliable idle adjustment, and precise fuel control.

It is a strong choice for replacing a tired stock engine or upgrading a T-Maxx with dependable O.S. power. The .21-size displacement delivers usable torque for truck applications while the 11K carburetor gives the engine the tuning consistency many nitro owners prefer.

Specs

Displacement: 3.41 cc
Bore: 17.0 mm
Stroke: 15.0 mm
Practical rpm:  3000-35,000
Output: 1.77 hp/29,000 rpm
Weight: 243g

Includes

11K Carburetor
LC3 Glow plug

Free ground shipping.