Home / OS Engines 21TM ABC .21 Engine with Manifold: 2.5 and 3.3 T-Maxx

OS Engines 21TM ABC .21 Engine with Manifold: 2.5 and 3.3 T-Maxx

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  • Detail

    A performance boost for one of R/C's most popular trucks!

    Boost the 4WD performance power in your Traxxas® T-Maxx™ with the 21TM engine from O.S.! It's the perfect upgrade for your monster masher – because it's a direct fit for Traxxas EZ-Start® or pull-start systems, as is the manifold and clutch assembly!
    O.S. Two Year Limited Warranty
    • The 21TM adds more power and displacement than the 18TM – and without modification!
    • Retrofits into the same mounting pattern, and the Traxxas clutch assembly bolts right on.
    • The special manifolds adapt perfectly to existing pull-start or EZ-Start® systems.
    • Reliable, lightweight and easy to operate – and both include a 3-needle carb for more precise tuning and an LC3 glow plug.
    • Adapts perfectly to the Traxxas E-Z Start or pull-start systems with no modifications
    • Included manifold is specially designed to fit directly into the T-Maxx
    • 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. glow plug suitable for off-road applications that require constantly varying speed
    • Two year limited warranty

    Product Specs

    Bore
    0.669 in (17 mm)
    Crankshaft Threads
    M7x1
    Crankshaft Type
    Threaded
    Cylinders
    Single
    Displacement
    0.213 cu in (3.49 cc)
    Plug Type
    LC3
    Power Type
    Glow
    Product Height
    4 in (101 mm)
    Product Length
    2.1 in (53.6 mm) from backplate to drive hub
    Product Width
    1.5 in (39 mm) at mounting tabs
    RPM Range
    3,000 - 35,000 rpm
    Stroke
    0.590 in (15 mm)
    Total Weight
    8.57 oz (243 g)
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