This is the O.S. Max 21TM Engine with the Revo Manifold. This Engine is a direct fit for the Traxxas Revo 2.5 and Revo 3.3.

Features:

• Adapts perfectly to the Traxxas E-Z Start or pull-start systems with no modifications
• Included manifold is specially designed to fit directly onto the Traxxas Revo
• Traxxas' clutch assembly bolts right to the crankshaft with no modifications
• Oversized cooling fins on crankcase helps to keep engine cooler
• Three needle slide valve carburetor with fins to help cool the fuel as it enters the engine
• High-performance long reach O.S. LC3 glow plug suitable for off-road applications that require constantly varying speed
• Two year limited warranty through the manufacturer

This engine is a direct fit for the Traxxas Revo and adapts to the Traxxas E-Z Start or pull system without any requires modifications or upgrades. This engine retrofits into the same mounting pattern, and the Traxxas clutch assembly bolts right on.

Includes: One O.S. Max 21TM Engine with Revo Manifold, LC3 glow plug, 11K slide valve carburetor, manifold spring, rubber exhaust gasket, sticker sheet and instruction manual

Requires:
Installing in vehicle
Air filter