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All Products > "L-OS13940 OS Max 21X-M Outboard" (Recommended Further Items)



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The new O.S. 21XM is a high performance outboard engine designed for use on the latest high speed racing boats. With 1.3PS @ 25000 RPM on tap, this engine provides astounding levels of speed and performance. Features robust cast construction and an integral silencer box. Perfect for the serious racer.

Bore:16.6mm (0.654")
Displacement:3.46cc (
Power Output:1.3PS @ 25,000rpm
Practical RPM:3,000 - 25,000
Stroke:16mm (0.630")
Weight:670g (23.64oz)


Buy NowIn stock for immediate despatch.
Part No: L-OS13940
Item Name: OS Max 21X-M Outboard
Brand: OS
Hide Further Items Recommended for
Recommended Further Items for OS Max 21X-M Outboard
Recommended Accessories Range
O.S. No 8 Glowplug


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