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Keep your nitro, glow, and gasoline RC helicopter engines running their best with factory, aftermarket, OEM and option parts from top brands including O.S. Engines, Novarossi, Saito, YS, Lynx Heli and more. AMain stocks pistons, sleeves, carburetors, heatsink heads, connecting rods, bearings, pipes, manifolds, gaskets, springs, and more--everything you need for peak fuel-burning power in your RC helicopter.

Engine Parts Helicopters

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Showing 1 to 45 of 240 Products
Carburetor 61G: 91HZ-R Speed 3D 3C
$279.99
Carburetor 61G: 91HZ-R Speed 3D 3C
Arriving Friday, November 6 2020
O.S. Engines 2.5x6mm Needle Valve O-Ring (2)
$5.99
O.S. Engines 2.5x6mm Needle Valve O-Ring (2)
Arriving Monday, October 12 2020
O.S. Piston Ring
$22.99
O.S. Piston Ring
Arriving Monday, October 12 2020
Rear Bearing: 50SX-H, 55HZ, 55AX
$30.99
Rear Bearing: 50SX-H, 55HZ, 55AX
Limited Quantities Available.
O.S. Engines Piston
$33.99
O.S. Engines Piston
Limited Quantities Available.
O.S. Engines Regulator Assembly
$114.99
O.S. Engines Regulator Assembly
Arriving Friday, November 6 2020
Cylinder Liner: 91HZ-R Speed 3C
$94.99
Cylinder Liner: 91HZ-R Speed 3C
Arriving Monday, December 28 2020
O.S. Engines Connecting Rod
$21.99
O.S. Engines Connecting Rod
Arriving Friday, November 6 2020
Engine Gasket Set  II JJ
$12.99
Engine Gasket Set II JJ
Arriving Monday, October 19 2020
O.S. Engines .2mm Head Gasket
$5.49
O.S. Engines .2mm Head Gasket
Arriving Friday, November 6 2020
O.S. Engines 3x7mm Push Rod O-Ring (2)
$4.49
O.S. Engines 3x7mm Push Rod O-Ring (2)
Limited Quantities Available.
Saito Engines Flexible Exhaust Pipe,Right:DD,VV
$25.99
Saito Engines Flexible Exhaust Pipe,Right:DD,VV
Arriving Tuesday, January 5 2021
Saito Engines Engine Gasket Set: BC, BD
$12.99
Saito Engines Engine Gasket Set: BC, BD
Arriving Monday, November 9 2020
O.S. Engines Connecting Rod
$24.99
O.S. Engines Connecting Rod
Arriving Monday, October 12 2020
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