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Hobby RC Motor & Engine Parts & Accessories for OS Helicopters

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    • Compatible Brand: For OS- Selected
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    • OS Engines Piston 27903200 for 61SX-H 61SX-H "WC" 61LX-H NEW OEM Replacement #2 - Image 1 of 4
    • OS Engines Piston 27903200 for 61SX-H 61SX-H "WC" 61LX-H NEW OEM Replacement #2 - Image 2 of 4
    • OS Engines Piston 27903200 for 61SX-H 61SX-H "WC" 61LX-H NEW OEM Replacement #2 - Image 3 of 4
    • OS Engines Piston 27903200 for 61SX-H 61SX-H "WC" 61LX-H NEW OEM Replacement #2 - Image 4 of 4

    OS Engines Piston 27903200 for 61SX-H 61SX-H "WC" 61LX-H NEW OEM Replacement #2

    Brand New · O.S.
    C $96.47
    or Best Offer
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    • OS Engines Piston 27903200 for 61SX-H 61SX-H "WC" 61LX-H NEW OEM Replacement #1 - Image 1 of 4
    • OS Engines Piston 27903200 for 61SX-H 61SX-H "WC" 61LX-H NEW OEM Replacement #1 - Image 2 of 4
    • OS Engines Piston 27903200 for 61SX-H 61SX-H "WC" 61LX-H NEW OEM Replacement #1 - Image 3 of 4
    • OS Engines Piston 27903200 for 61SX-H 61SX-H "WC" 61LX-H NEW OEM Replacement #1 - Image 4 of 4

    OS Engines Piston 27903200 for 61SX-H 61SX-H "WC" 61LX-H NEW OEM Replacement #1

    Brand New · O.S.
    C $103.37
    or Best Offer
    Q⁣S⁣р⁣X⁣ ⁣S⁣o⁣n⁣Y⁣s⁣o⁣ ⁣r⁣Y⁣5⁣ ⁣0⁣e⁣G⁣d⁣ ⁣⁣⁣⁣B⁣G⁣⁣ ⁣
    • OS Engine Connecting Rod 27905000 for 61SX-H, RX-H "WC" NEW OEM Replacement (#2) - Image 1 of 4
    • OS Engine Connecting Rod 27905000 for 61SX-H, RX-H "WC" NEW OEM Replacement (#2) - Image 2 of 4
    • OS Engine Connecting Rod 27905000 for 61SX-H, RX-H "WC" NEW OEM Replacement (#2) - Image 3 of 4
    • OS Engine Connecting Rod 27905000 for 61SX-H, RX-H "WC" NEW OEM Replacement (#2) - Image 4 of 4

    OS Engine Connecting Rod 27905000 for 61SX-H, RX-H "WC" NEW OEM Replacement (#2)

    Brand New · O.S.
    C $41.35
    or Best Offer
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    • OS Engine Cylinder Liner 27953100 for 61SX-H, RX-H "WC" NEW OEM Replacement (#2) - Image 1 of 4
    • OS Engine Cylinder Liner 27953100 for 61SX-H, RX-H "WC" NEW OEM Replacement (#2) - Image 2 of 4
    • OS Engine Cylinder Liner 27953100 for 61SX-H, RX-H "WC" NEW OEM Replacement (#2) - Image 3 of 4
    • OS Engine Cylinder Liner 27953100 for 61SX-H, RX-H "WC" NEW OEM Replacement (#2) - Image 4 of 4

    OS Engine Cylinder Liner 27953100 for 61SX-H, RX-H "WC" NEW OEM Replacement (#2)

    Brand New · O.S.
    C $96.47
    or Best Offer
    S⁣p⁣J⁣o⁣N⁣n⁣ ⁣2⁣s⁣N⁣o⁣ ⁣T⁣W⁣ ⁣X⁣r⁣е⁣d⁣B⁣ ⁣3⁣⁣M⁣ ⁣⁣⁣⁣
  • OS Engines 27081010 Carburetor 60K .91SX-H C-Special Discontinued Old Stock NIB - Image 1 of 1

    OS Engines 27081010 Carburetor 60K .91SX-H C-Special Discontinued Old Stock NIB

    Brand New · O.S.
    C $64.47
    C $28.93 shipping
    5 watching
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  • Copper Exhaust Gasket for OS Engines 61-105 *Made in USA* - Image 1 of 2

    Copper Exhaust Gasket for OS Engines 61-105 *Made in USA*

    Brand New · O.S.
    C $5.51
    or Best Offer
    C $2.76 shipping
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  • OS Engines Front Bearing 37SZ-H 22831000 NEW OEM Replacement - Image 1 of 1

    OS Engines Front Bearing 37SZ-H 22831000 NEW OEM Replacement

    Brand New · O.S.
    C $16.54
    or Best Offer
    C $5.51 shipping
    Only 1 left!
    O⁣⁣E⁣⁣⁣ ⁣V⁣⁣⁣L⁣⁣⁣⁣ ⁣⁣⁣P⁣⁣L⁣ ⁣⁣⁣U⁣1⁣⁣⁣⁣⁣
  • OS Engines Carb O-Ring 105HZ-R 27915000 (2) NEW OEM Equivalent Replacement - Image 1 of 1

    OS Engines Carb O-Ring 105HZ-R 27915000 (2) NEW OEM Equivalent Replacement

    Brand New · O.S.
    C $4.13
    or Best Offer
    C $2.76 shipping
    X⁣S⁣⁣⁣ ⁣P⁣M⁣ ⁣7⁣K⁣ ⁣E⁣⁣B⁣ ⁣⁣Y⁣8⁣⁣ ⁣⁣M⁣⁣⁣⁣⁣⁣⁣
  • OS Engines Rear Bearing 37SZ-H 21RZ 23730000 NEW OEM Replacement - Image 1 of 1

    OS Engines Rear Bearing 37SZ-H 21RZ 23730000 NEW OEM Replacement

    Brand New · O.S.
    C $37.21
    or Best Offer
    C $5.51 shipping
    ⁣⁣L⁣⁣⁣⁣U⁣⁣⁣⁣⁣ ⁣6⁣⁣R⁣ ⁣⁣9⁣O⁣⁣⁣⁣ ⁣Q⁣⁣O⁣⁣ ⁣
  • OS Engines Exhaust Gasket 50SX 55HZ/HZ-R 72144040 *qty-1 ONLY* NEW - Image 1 of 2

    OS Engines Exhaust Gasket 50SX 55HZ/HZ-R 72144040 *qty-1 ONLY* NEW

    Brand New · O.S.
    (2)
    C $8.27
    or Best Offer
    C $2.76 shipping
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  • OS Engines Connecting Rod 70SZ-H 27005000 NEW OEM Replacement - Image 1 of 1

    OS Engines Connecting Rod 70SZ-H 27005000 NEW OEM Replacement

    Brand New · O.S.
    C $34.46
    or Best Offer
    C $21.33 shipping
    Only 1 left!
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  • OS Engines Head Gasket 105HZ 0.2T 28704160 NEW OEM Replacement - Image 1 of 1

    OS Engines Head Gasket 105HZ 0.2T 28704160 NEW OEM Replacement

    Brand New · O.S.
    C $6.89
    or Best Offer
    C $2.76 shipping
    Only 1 left!
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  • O.S. OS 10G Carb Carburetor #10G : .15 15 LA 15LA RC Engine Part 21783000 - Image 1 of 2

    O.S. OS 10G Carb Carburetor #10G : .15 15 LA 15LA RC Engine Part 21783000

    Brand New · O.S.
    (4)
    C $41.28
    C $16.03 shipping
    46 watching
    4⁣S⁣⁣⁣⁣ ⁣8⁣X⁣⁣ ⁣2⁣⁣⁣⁣⁣V⁣ ⁣⁣⁣6⁣⁣F⁣⁣ ⁣⁣R⁣G⁣⁣
  • OS Engine Cylinder Liner 27953100 for 61SX-H, RX-H "WC" NEW OEM Replacement (#1) - Image 1 of 4

    OS Engine Cylinder Liner 27953100 for 61SX-H, RX-H "WC" NEW OEM Replacement (#1)

    Brand New · O.S.
    C $103.37
    or Best Offer
    S⁣p⁣Y⁣U⁣ ⁣1⁣o⁣n⁣5⁣s⁣ ⁣J⁣o⁣K⁣ ⁣r⁣U⁣W⁣ ⁣е⁣d⁣5⁣Q⁣⁣ ⁣P⁣⁣⁣
  • O.S. Speed 73301812 NITRO ENGINE 18MM DUST CAP COVER RC CARS RACING - Image 1 of 2

    O.S. Speed 73301812 NITRO ENGINE 18MM DUST CAP COVER RC CARS RACING

    Brand New · O.S.
    C $11.01
    S⁣O⁣p⁣o⁣6⁣n⁣s⁣ ⁣o⁣r⁣M⁣е⁣d⁣B⁣⁣⁣⁣⁣⁣⁣ ⁣5⁣⁣U⁣ ⁣B⁣9⁣ ⁣
  • O.S. Engines 74002200 Plug Cap GT55 Vehicle Part - Image 1 of 1

    O.S. Engines 74002200 Plug Cap GT55 Vehicle Part

    Brand New · O.S.
    C $65.46
    C $16.73 shipping
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  • OS Engines Gasket Set 50SX-H 25214000 NEW OEM Replacement - Image 1 of 1

    OS Engines Gasket Set 50SX-H 25214000 NEW OEM Replacement

    Brand New · O.S.
    C $9.65
    or Best Offer
    C $2.76 shipping
    7 watching
    ⁣⁣⁣S⁣⁣⁣⁣⁣P⁣ ⁣⁣⁣⁣⁣⁣⁣F⁣N⁣ ⁣S⁣0⁣⁣ ⁣B⁣⁣9⁣⁣⁣
  • OS Engines Piston Pin Retainer 37SZ-H 24517000 NEW OEM Replacement - Image 1 of 1

    OS Engines Piston Pin Retainer 37SZ-H 24517000 NEW OEM Replacement

    Brand New · O.S.
    (1)
    C $6.89
    or Best Offer
    C $2.76 shipping
    3 watching
    ⁣⁣⁣⁣L⁣S⁣⁣⁣ ⁣⁣⁣G⁣⁣V⁣ ⁣C⁣S⁣ ⁣⁣X⁣E⁣⁣ ⁣I⁣⁣Q⁣ ⁣⁣
  • OS Engines Piston Ring 70SZ-H 27003400 NEW OEM Replacement - Image 1 of 1

    OS Engines Piston Ring 70SZ-H 27003400 NEW OEM Replacement

    Brand New · O.S.
    C $28.94
    or Best Offer
    C $21.17 shipping
    P⁣⁣1⁣ ⁣7⁣5⁣ ⁣⁣⁣⁣⁣Y⁣⁣⁣⁣J⁣⁣⁣ ⁣Z⁣F⁣⁣⁣⁣⁣⁣⁣ ⁣
  • OS Engines Thrust Washer 50/55/61/70/91/105 46120000 NEW OEM Replacement - Image 1 of 1

    OS Engines Thrust Washer 50/55/61/70/91/105 46120000 NEW OEM Replacement

    Brand New · O.S.
    (2)
    C $7.58
    or Best Offer
    Trending at C $17.16

    eBay determines this price through a machine-learned model of the product's sale prices within the last 90 days.

    C $2.76 shipping
    ⁣⁣A⁣⁣⁣⁣⁣⁣V⁣ ⁣⁣T⁣9⁣⁣⁣⁣ ⁣E⁣⁣6⁣⁣⁣ ⁣7⁣E⁣⁣ ⁣M⁣
  • OS Engines Head Gasket 105HZ 0.1T 28704161 NEW OEM Replacement - Image 1 of 1

    OS Engines Head Gasket 105HZ 0.1T 28704161 NEW OEM Replacement

    Brand New · O.S.
    C $6.89
    or Best Offer
    C $2.76 shipping
    Only 1 left!
    0⁣Q⁣⁣⁣⁣⁣⁣⁣⁣⁣ ⁣U⁣J⁣ ⁣⁣5⁣⁣⁣⁣B⁣ ⁣⁣4⁣N⁣⁣ ⁣⁣⁣
  • OS Engines Piston Ring 91HZ Speed 91HZ-R 29503400 NEW OEM Replacement - Image 1 of 1

    OS Engines Piston Ring 91HZ Speed 91HZ-R 29503400 NEW OEM Replacement

    Brand New · O.S.
    (10)
    C $31.70
    or Best Offer
    Trending at C $35.25

    eBay determines this price through a machine-learned model of the product's sale prices within the last 90 days.

    C $21.25 shipping
    6 watching
    P⁣⁣⁣H⁣⁣ ⁣⁣⁣⁣⁣3⁣W⁣⁣ ⁣C⁣I⁣⁣⁣ ⁣R⁣⁣G⁣⁣ ⁣⁣X⁣C⁣ ⁣
  • OS Engines Heatsink Head (Blue) 50SX-H 25204200 NEW OEM Replacement - Image 1 of 2

    OS Engines Heatsink Head (Blue) 50SX-H 25204200 NEW OEM Replacement

    Brand New · O.S.
    C $107.50
    or Best Offer
    C $23.48 shipping
    ⁣W⁣P⁣⁣ ⁣I⁣N⁣ ⁣9⁣⁣⁣⁣R⁣⁣ ⁣E⁣⁣⁣8⁣⁣ ⁣Y⁣⁣Y⁣ ⁣M⁣⁣ ⁣
  • OS Speed Plug Wrench 71520100 NEW OEM Replacement - Image 1 of 1

    OS Speed Plug Wrench 71520100 NEW OEM Replacement

    Brand New · O.S.
    C $38.59
    or Best Offer
    C $21.46 shipping
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  • O.S. OS Engines Aluminum Engine Motor Mount .40 .46 .55 46 55 AX 46AX 55AX SF FX - Image 1 of 3

    O.S. OS Engines Aluminum Engine Motor Mount .40 .46 .55 46 55 AX 46AX 55AX SF FX

    Brand New · O.S.
    (2)
    C $53.68
    C $25.97 shipping
    87 sold
    ⁣O⁣⁣E⁣ ⁣A⁣⁣⁣⁣Z⁣⁣⁣ ⁣6⁣⁣E⁣⁣ ⁣P⁣9⁣⁣ ⁣I⁣⁣E⁣ ⁣⁣⁣
  • OS Engines Pressure Nipple M4 72145030 NEW OEM Replacement - Image 1 of 1

    OS Engines Pressure Nipple M4 72145030 NEW OEM Replacement

    Brand New · O.S.
    C $6.89
    or Best Offer
    C $17.76 shipping
    E⁣U⁣ ⁣O⁣Z⁣⁣⁣⁣ ⁣W⁣⁣1⁣ ⁣⁣⁣⁣⁣3⁣T⁣ ⁣H⁣⁣⁣J⁣⁣ ⁣⁣⁣
  • OS Engines 91HZ Piston 29073200 NEW OEM Replacement - Image 1 of 2

    OS Engines 91HZ Piston 29073200 NEW OEM Replacement

    Brand New · O.S.
    (2)
    C $93.72
    or Best Offer
    C $23.08 shipping
    9 watching
    T⁣⁣⁣W⁣⁣ ⁣⁣M⁣⁣E⁣⁣⁣⁣⁣ ⁣⁣W⁣⁣V⁣⁣ ⁣J⁣⁣L⁣⁣ ⁣⁣⁣
  • OS Engines Carb Rubber Gasket Speed 91HZ 105HZ-R 27915000 NEW OEM Replacement - Image 1 of 1

    OS Engines Carb Rubber Gasket Speed 91HZ 105HZ-R 27915000 NEW OEM Replacement

    Brand New · O.S.
    (1)
    C $8.27
    or Best Offer
    C $2.76 shipping
    W⁣P⁣⁣⁣ ⁣⁣⁣W⁣⁣I⁣⁣ ⁣A⁣⁣L⁣⁣ ⁣3⁣S⁣⁣⁣⁣ ⁣⁣X⁣⁣⁣⁣
  • O.S.OS Engine RC 21931000 Crankshaft Bearing (R) for 18TM - Image 1 of 2

    O.S.OS Engine RC 21931000 Crankshaft Bearing (R) for 18TM

    Brand New · O.S.
    C $24.63
    0⁣S⁣6⁣p⁣ ⁣H⁣2⁣ ⁣o⁣O⁣L⁣ ⁣R⁣N⁣ ⁣n⁣D⁣O⁣s⁣ ⁣4⁣I⁣o⁣ ⁣⁣r⁣е⁣d⁣
  • O.S. OS Engine RC 24007020 Cover Plate Unit for 40 46 LA - Image 1 of 2

    O.S. OS Engine RC 24007020 Cover Plate Unit for 40 46 LA

    Brand New · O.S.
    (2)
    C $16.19
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  • O.S. OS Engine RC 28009002 Propeller Washer for .61 to .90 size OS Max engines - Image 1 of 1

    O.S. OS Engine RC 28009002 Propeller Washer for .61 to .90 size OS Max engines

    Brand New · O.S.
    (3)
    C $13.48
    S⁣8⁣6⁣p⁣ ⁣O⁣E⁣ ⁣R⁣o⁣D⁣ ⁣n⁣K⁣s⁣S⁣o⁣r⁣ ⁣Q⁣J⁣е⁣ ⁣d⁣K⁣⁣⁣⁣
  • Ogawa Seiki 25303400 Piston Ring for .50SX-H 46FX-H 46SF OSMG7790 Black NEW - Image 1 of 1

    Ogawa Seiki 25303400 Piston Ring for .50SX-H 46FX-H 46SF OSMG7790 Black NEW

    Brand New · O.S.
    (7)
    C $34.98
    C $34.46 shipping
    S⁣p⁣Q⁣F⁣o⁣n⁣s⁣о⁣ ⁣r⁣G⁣e⁣d⁣⁣2⁣ ⁣8⁣⁣⁣R⁣⁣⁣ ⁣4⁣T⁣⁣⁣⁣
  • OS Engines Piston 70SZ-H 27003200 NEW OEM Replacement - Image 1 of 1

    OS Engines Piston 70SZ-H 27003200 NEW OEM Replacement

    Brand New · O.S.
    C $57.88
    or Best Offer
    C $22.02 shipping
    Only 1 left!
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  • OS Engines GT15HZ Piston Pin Retainer 28117030 NEW OEM Replacement - Image 1 of 1

    OS Engines GT15HZ Piston Pin Retainer 28117030 NEW OEM Replacement

    Brand New · O.S.
    C $8.27
    or Best Offer
    C $2.76 shipping
    Only 1 left!
    S⁣V⁣⁣⁣ ⁣L⁣Y⁣⁣⁣ ⁣⁣3⁣8⁣⁣⁣ ⁣⁣H⁣⁣⁣3⁣ ⁣C⁣⁣⁣D⁣⁣⁣
  • OS Engines Front Bearing 50SX 55HZ 91HZ 105HZ 26731002 NEW OEM Replacement - Image 1 of 2

    OS Engines Front Bearing 50SX 55HZ 91HZ 105HZ 26731002 NEW OEM Replacement

    Brand New · O.S.
    C $24.81
    or Best Offer
    C $21.05 shipping
    5 watching
    T⁣⁣C⁣ ⁣H⁣3⁣ ⁣4⁣4⁣ ⁣⁣A⁣⁣Z⁣⁣ ⁣⁣⁣⁣⁣Q⁣⁣⁣⁣⁣3⁣⁣⁣
  • OS Engines Piston Pin Retainer 50SX-H 55HZ/HZ-R 25217000 NEW OEM Replacement - Image 1 of 1

    OS Engines Piston Pin Retainer 50SX-H 55HZ/HZ-R 25217000 NEW OEM Replacement

    Brand New · O.S.
    C $8.27
    or Best Offer
    C $2.76 shipping
    T⁣J⁣ ⁣⁣9⁣⁣G⁣ ⁣⁣N⁣⁣⁣⁣Z⁣⁣ ⁣H⁣⁣F⁣⁣ ⁣Z⁣G⁣⁣ ⁣⁣⁣⁣
  • Crankshaft - 50 SX-H : 25202000 - Image 1 of 1

    Crankshaft - 50 SX-H : 25202000

    Brand New · O.S.
    C $86.10
    C $13.97 shipping
    ⁣9⁣5⁣⁣⁣ ⁣5⁣G⁣ ⁣⁣⁣⁣R⁣⁣⁣⁣⁣⁣H⁣ ⁣⁣⁣I⁣⁣P⁣⁣⁣⁣
  • Carb Sealing Washer 61SX-H : 27915100 - Image 1 of 1

    Carb Sealing Washer 61SX-H : 27915100

    Brand New · O.S.
    C $16.97
    C $12.79 shipping
    ⁣L⁣⁣⁣⁣⁣2⁣⁣⁣⁣ ⁣T⁣D⁣⁣ ⁣Z⁣⁣⁣⁣X⁣⁣ ⁣⁣F⁣H⁣⁣ ⁣⁣
  • O.S. OS Engine RC 21481950 Universal Nipple No.12 for 10E,10F. - Image 1 of 1

    O.S. OS Engine RC 21481950 Universal Nipple No.12 for 10E,10F.

    Brand New · O.S.
    C $13.74
    or Best Offer
    W⁣M⁣ ⁣2⁣S⁣p⁣0⁣ ⁣I⁣F⁣ ⁣G⁣o⁣n⁣3⁣ ⁣s⁣6⁣B⁣о⁣ ⁣r⁣e⁣d⁣⁣⁣D⁣⁣
  • O.S. Engines 25303400 Piston Ring for .46 SF/H From Japan - Image 1 of 2

    O.S. Engines 25303400 Piston Ring for .46 SF/H From Japan

    Brand New · O.S.
    (7)
    C $28.89
    C $31.70 shipping
    8 watching
    S⁣p⁣E⁣о⁣n⁣s⁣o⁣X⁣r⁣e⁣d⁣⁣⁣⁣⁣⁣⁣⁣ ⁣⁣Q⁣V⁣⁣ ⁣⁣⁣⁣A⁣
  • OS Engines Heatsink Head 55HZ/HZ-R 25804020 NEW OEM Replacement Cylinder Head - Image 1 of 2

    OS Engines Heatsink Head 55HZ/HZ-R 25804020 NEW OEM Replacement Cylinder Head

    Brand New · O.S.
    C $115.77
    or Best Offer
    C $23.73 shipping
    F⁣⁣⁣⁣⁣⁣⁣Z⁣⁣ ⁣F⁣9⁣ ⁣5⁣Y⁣⁣ ⁣Y⁣⁣⁣S⁣ ⁣H⁣⁣1⁣ ⁣⁣⁣
  • OS Engines Gasket Set 37SZ-H 23424000 NEW OEM Replacement - Image 1 of 1

    OS Engines Gasket Set 37SZ-H 23424000 NEW OEM Replacement

    Brand New · O.S.
    C $12.40
    or Best Offer
    C $20.69 shipping
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  • OS Engines Crankcase 37SZ-H 23411000 NEW OEM Replacement - Image 1 of 1

    OS Engines Crankcase 37SZ-H 23411000 NEW OEM Replacement

    Brand New · O.S.
    C $67.53
    or Best Offer
    C $22.31 shipping
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  • OS Engines Cylinder Liner 105HZ 105HZ-R 28703100 NEW OEM Replacement - Image 1 of 2

    OS Engines Cylinder Liner 105HZ 105HZ-R 28703100 NEW OEM Replacement

    Brand New · O.S.
    C $129.55
    or Best Offer
    C $24.15 shipping
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  • OS Engines Carb Sealing Washer 50SX-H 23818190 NEW OEM Replacement - Image 1 of 1

    OS Engines Carb Sealing Washer 50SX-H 23818190 NEW OEM Replacement

    Brand New · O.S.
    C $8.27
    or Best Offer
    C $2.76 shipping
    4 watching
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  • OS Engines Piston Ring 105HZ 105HZ-R 29203400 NEW OEM Replacement - Image 1 of 1

    OS Engines Piston Ring 105HZ 105HZ-R 29203400 NEW OEM Replacement

    Brand New · O.S.
    (1)
    C $33.08
    or Best Offer
    C $5.51 shipping
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  • OS Engine GT15HZ - Carburettor Gasket (2) : 49415000 - Image 1 of 1

    OS Engine GT15HZ - Carburettor Gasket (2) : 49415000

    Brand New · O.S.
    C $20.97
    C $13.00 shipping
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  • OS Engines Head Gasket 55HZ/HZ-R 25804160 NEW OEM Replacement - Image 1 of 1

    OS Engines Head Gasket 55HZ/HZ-R 25804160 NEW OEM Replacement

    Brand New · O.S.
    C $9.65
    or Best Offer
    C $2.76 shipping
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  • OS Engines Helicopter Engine Replacement Piston Ring .55HZ .55 55 HZ 27703400 - Image 1 of 3

    OS Engines Helicopter Engine Replacement Piston Ring .55HZ .55 55 HZ 27703400

    Brand New · O.S.
    (3)
    C $45.41
    C $16.15 shipping
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  • O.S. 20,25 Connecting Rod, #22005019 new. - Image 1 of 3

    O.S. 20,25 Connecting Rod, #22005019 new.

    Brand New · O.S.
    C $27.50
    or Best Offer
    C $23.84 shipping
    3 watching
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  • NEW OS Engines 50SX-H Cylinder Heatsink Head 25204000 OSMG2740 NOS RC Aircraft - Image 1 of 4

    NEW OS Engines 50SX-H Cylinder Heatsink Head 25204000 OSMG2740 NOS RC Aircraft

    Brand New · O.S.
    C $16.52
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  • OS Engines 105HZ 91HZ Connecting Rod 29505010 NEW OEM Replacement - Image 1 of 1

    OS Engines 105HZ 91HZ Connecting Rod 29505010 NEW OEM Replacement

    Brand New · O.S.
    C $33.08
    or Best Offer
    C $21.29 shipping
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  • O.S. OS Engine RC 25425400 Silencer Screw Set - Image 1 of 2

    O.S. OS Engine RC 25425400 Silencer Screw Set

    Brand New · O.S.
    (3)
    C $16.46
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  • O.S. Engines R/C Needle Only For 15,21,2A 31,3A 49-P1 & others Part No 22281977 - Image 1 of 2

    O.S. Engines R/C Needle Only For 15,21,2A 31,3A 49-P1 & others Part No 22281977

    Brand New · O.S.
    C $13.23
    Was: C $16.54was - C $16.54
    C $15.20 shipping
    5 watching
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  • OS Engines Crankcase 105HZ 28701000 *NEW* OEM Replacement - Image 1 of 1

    OS Engines Crankcase 105HZ 28701000 *NEW* OEM Replacement

    Brand New · O.S.
    C $191.57
    or Best Offer
    C $23.80 shipping
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  • OS Engines Cylinder Liner 37SZ-H 23413100 NEW OEM Replacement - Image 1 of 1

    OS Engines Cylinder Liner 37SZ-H 23413100 NEW OEM Replacement

    Brand New · O.S.
    C $49.62
    or Best Offer
    C $21.78 shipping
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  • OS Engines Piston Ring GT15HZ 28153400 NEW OEM Replacement - Image 1 of 2

    OS Engines Piston Ring GT15HZ 28153400 NEW OEM Replacement

    Brand New · O.S.
    C $35.83
    or Best Offer
    C $21.38 shipping
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  • OS A3 (#6) Hot Glow Plug for .12-.18 Nitro Engines OSMG2690 OSM71605300 - Image 1 of 1

    OS A3 (#6) Hot Glow Plug for .12-.18 Nitro Engines OSMG2690 OSM71605300

    Brand New · O.S.
    (23)
    C $8.13
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  • O.S. OS Engine RC 22681953 Nipple No.1 - Image 1 of 2

    O.S. OS Engine RC 22681953 Nipple No.1

    Brand New · O.S.
    (1)
    C $6.52
    Only 1 left!
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  • OS Engine 23730000 Crankshaft Ball Bearing(R) for 21 RZ - Image 1 of 1

    OS Engine 23730000 Crankshaft Ball Bearing(R) for 21 RZ

    Brand New · O.S.
    C $96.47
    or Best Offer
    Free shipping
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