O.S. Engines

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Quality and performance has made O.S. the standard in RC engines for over 80 years.
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73-96 of 1,605 Results
O-Ring Set #60B O-Ring Set #60B
5 out of 5 Customer Rating
O-Ring Set #60B
$2.53 Price reduced from $8.43 to
Clearance Sale! ⓘ
Low Unit Screw (4): 21XM Low Unit Screw (4): 21XM
3.6 out of 5 Customer Rating
Low Unit Screw (4): 21XM
$10.86
Muffler: E2050-2, 21XM, V2 Outboard Marine Muffler: E2050-2, 21XM, V2 Outboard Marine
4 out of 5 Customer Rating
Muffler: E2050-2, 21XM, V2 Outboard Marine
$87.29
Crankcase: 21XM Crankcase: 21XM
3.4 out of 5 Customer Rating
Crankcase: 21XM
$125.10
Cover Plate: 21XZ-B Cover Plate: 21XZ-B
4.9 out of 5 Customer Rating
Cover Plate: 21XZ-B
$22.04
Rotor Guide Screw #20J Rotor Guide Screw #20J
5 out of 5 Customer Rating
Rotor Guide Screw #20J
$6.49
RP7 Turbo Glow Plug Cold On-Road RP7 Turbo Glow Plug Cold On-Road
5 out of 5 Customer Rating
RP7 Turbo Glow Plug Cold On-Road
$14.99
Connecting Rod: FT-120, 160 Connecting Rod: FT-120, 160
5 out of 5 Customer Rating
Connecting Rod: FT-120, 160
$67.22
Standoff 5x38.1mm 1-1/2" (4): GT55 Standoff 5x38.1mm 1-1/2" (4): GT55
3.6 out of 5 Customer Rating
Standoff 5x38.1mm 1-1/2" (4): GT55
$42.11
Gasket Set: 55AX Gasket Set: 55AX
5 out of 5 Customer Rating
Gasket Set: 55AX
$11.80
Throttle Lever #2F #2FB Throttle Lever #2F #2FB
4.8 out of 5 Customer Rating
Throttle Lever #2F #2FB
$7.49
Regulator Seat: 61E-R Regulator Seat: 61E-R
4.1 out of 5 Customer Rating
Regulator Seat: 61E-R
$3.56 Price reduced from $11.87 to
Clearance Sale! ⓘ
Drive Washer: GT55 Drive Washer: GT55
3.7 out of 5 Customer Rating
Drive Washer: GT55
$52.69
Piston Ring: GT22 Piston Ring: GT22
3.3 out of 5 Customer Rating
Piston Ring: GT22
$25.44
Rocker Arm Retainer: FS-20-240 Rocker Arm Retainer: FS-20-240
4.7 out of 5 Customer Rating
Rocker Arm Retainer: FS-20-240
$6.49
Camshaft Cover Camshaft Cover
4.7 out of 5 Customer Rating
Camshaft Cover
$11.80
Crankcase: R21 Crankcase: R21
3.7 out of 5 Customer Rating
Crankcase: R21
$119.70
Screw Set 12 (8) Screw Set 12 (8)
4.7 out of 5 Customer Rating
Screw Set 12 (8)
$7.46
Crankshaft: FS120SEIII, FS120SE Crankshaft: FS120SEIII, FS120SE
4.8 out of 5 Customer Rating
Crankshaft: FS120SEIII, FS120SE
$102.52
Piston Ring: FT-120 240 Piston Ring: FT-120 240
4.4 out of 5 Customer Rating
Piston Ring: FT-120 240
$29.60
Muffler Assembly Screw E2050-2: 21XM V2 Outboard Muffler Assembly Screw E2050-2: 21XM V2 Outboard
4 out of 5 Customer Rating
Muffler Assembly Screw E2050-2: 21XM V2 Outboard
$9.44
Piston: GT60 Piston: GT60
4.8 out of 5 Customer Rating
Piston: GT60
$45.74 Price reduced from $152.45 to
Clearance Sale! ⓘ
Bearing L-1040X2ZZ Bearing L-1040X2ZZ
5 out of 5 Customer Rating
Bearing L-1040X2ZZ
$14.99
Main Shaft: OMA3825-750W Main Shaft: OMA3825-750W
4.6 out of 5 Customer Rating
Main Shaft: OMA3825-750W
$8.49
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