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Radio systems

OS 26711305 21K Ratchet Spring (No.4)

OS 26711305 21K Ratchet Spring (No.4)

This ratchet spring is designed to fit many OS Engines' needle valve assemblies. It holds the needle valve in place after adjustment.

OS 26711305 21K Ratchet Spring (No.4)
Price: S$1.90
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OS OMA-5025-375 High Performance Brushless Motor

OS OMA-5025-375 High Performance Brushless Motor-1
OS High Performance Brushless Motor

High-Powered Brushless Aircraft Motors from O.S.!
Pilots loyal to outstanding O.S. performance but eager to fly electric will now have the ideal option — powering electric airplanes using new O.S. brushless motors! The OS OMA-5025-375 High Performance Brushless Motor is designed equivalent for 4-stroke 91 or 2-stroke 50 size airplanes.

OS OMA-5025-375 High Performance Brushless Motor
Price: S$145.30
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OS GT33 Gasoline Engine

OS GT33 Gasoline Engine-1
OS GT33 Gasoline Engine-7

The OS GT33 Gasoline Aircraft Engine is designed for experienced modelers with its broad power characteristics suitable for sport as well as acro flights. 

OS GT33 Gasoline Engine
Price: S$523.00
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OS FS-56 Alpha 4-cycle Engine

OS FS-56 Alpha 4-cycle engine
OS FS-56α ushers in a new era in O.S. 4-stroke technology, promises to boost your plane's performance. OS FS-56α has the same mounting as the FS-52S and sports a new OS 40NA carburettor.  
OS FS-56 Alpha 4-cycle Engine
Price: S$397.30
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OS Glow Plug RP7

OS Glow Plug RP7
An all-season, medium-heat plug for Turbo head RC model car engines. 
OS Glow Plug P7
Price: S$9.00
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OS GT60 Gasoline Engine with E-6020 Silencer

OS GT60 Gasoline Engine with E-6020 Silencer-1

With the existing OS GT Series engines including GT55, GT33 and GT22,  a new larger size GT-60 is added to the line-up for aerobatic as well as big scale models. It features liner-less cylinder integrated with the cylinder head is employed for the first time at OS and a new OS ignition IG-02. This contributes to better cooling and light weight. It employs a reed valve/rear carburetor which has high performance that was proven in the GT33 and GT22. An efficient Pitts style E-6020 silencer is also included.

OS GT60 Gasoline Engine with E-6020 Silencer
Price: S$960.00
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OS 74003580 M5 Stand Off Engine Mount (2"/50.8mm)

OS 74003580 M5 Stand Off Engine Mount (2
This set of OS 74003580 M5 Stand Off Engine Mount is designed for engines such as OS GT33 and GT55. It allows the engine to be mounted 2" (50.8mm) from the airplane's firewall. Package includes stand offs, 5mm socket head bolts and washers. 
OS 74003580 M5 Stand Off Engine Mount (2"/50.8mm)

Price: S$22.20
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OS 21581000 15CV-A Carburettor Complete

OS 21581000 15CV-A Carburettor Complete
OS 21581000 Carburettor Complete is a replacement part for OS 15CV-A engine. 
OS 21581000 15CV-A Carburettor Complete

Price: S$42.60
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OS 29053210 91SX-H C-Spec Piston

OS 29053210 91SX-H C-Spec Piston

OS 29053210 aluminum Piston is a replacement part for 91SX-H C-Spec engine. 

OS 29053210 91SX-H C-Spec Piston
Price: S$43.20
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OS 74003510 M5 Stand Off Engine Mount (1/4"/6.4mm)

OS 74003510 M5 Stand Off Engine Mount (1/4
This set of OS 74003530 M5 Stand Off Engine Mount is designed for engines such as OS GT33 and GT55. It allows the engine to be mounted 1/4" (6.4mm) from the airplane's firewall. Package includes stand offs, 5mm socket head bolts and 5mm blind nuts. 
OS 74003510 M5 Stand Off Engine Mount (1/4"/6.4mm)

Price: S$15.10
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OS 74003530 M5 Stand Off Engine Mount (3/4"/19.1mm)

OS 74003530 M5 Stand Off Engine Mount (3/4
This set of OS 74003530 M5 Stand Off Engine Mount is designed engines such as OS GT33 and GT55. It allows the engine to be mounted 3/4" (19mm) from the airplane's firewall. Package includes stand offs, 5mm socket head bolts and 5mm blind nuts. 
OS 74003530 M5 Stand Off Engine Mount (3/4"/19.1mm)

Price: S$15.10
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OS 74003540 M5 Stand Off Engine Mount (1"/25.4mm)

OS 74003540 M5 Stand Off Engine Mount (1
This set of OS 74003540 M5 Stand Off Engine Mount is designed for engines such as OS GT33 and GT55. It allows the engine to be mounted 1" (25.4mm) from the airplane's firewall. Package includes stand offs, 5mm socket head bolts and washers. 
OS 74003540 M5 Stand Off Engine Mount (1"/25.4mm)

Price: S$17.10
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OS 74004056 OMA-3825-750 Motor Shaft

OS 74004056 OMA-3825-750 Motor Shaft
Replacement shaft for OS OMA-3825-750 motors. Measures 75mm in length. 
OS 74004056 OMA-3825-750 Motor Shaft

Price: S$3.50
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OS 25830010 Ball Bearing for 50SX-H/55AX/BE

OS 25830010 Ball Bearing for 50SX-H/55AX/BE
This Ball Bearing is a replacement part for 50SX-H/55AX/55AX BE engines. 
OS 25830010 Ball Bearing for 50SX-H/55AX/BE

Price: S$23.30
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OS 26731002 Crankshaft Ball Bearing for 40-61 (F)

OS 26731002 Crankshaft Ball Bearing for 40-61 (F)
This Crankshaft Ball Bearing is a replacement part for OS 40-61 engines. 
OS 26731002 Crankshaft Ball Bearing for 40-61 (F)

Price: S$12.60
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OS Piston Pin Retainer for 21V-SPEC/RZ/XM/15RX

OS Piston Pin Retainer for 21V-SPEC/RZ/XM/15RX
This OS Piston Pin Retainer is a replacement part for 21V-SPEC/RZ/XM/15RX. 
OS Piston Pin Retainer for 21V-SPEC/RZ/XM/15RX

Price: S$1.70
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OS 71669000 Ignition Plug CM-6

OS Ignition Plug CM-6 for GT55
This Ignition Plug CM-6 is designed for use with OS GT22, GT33, GT55, GT60, GT15, GT-15HZ gasoline engines. 
OS 71669000 Ignition Plug CM-6

Price: S$14.00
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OS 21XM Cylinder & Piston Assembly

OS 21XM Cylinder & Piston Assembly
This OS Cylinder & Piston Assembly is a replacement part for 21XM engine. 
OS 21XM Cylinder & Piston Assembly

Price: S$109.70
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OS 21XM Flexible Wire

OS 21XM Flexible Wire
This OS Flexible Wire is a replacement part for 21XM engine. 
OS 21XM Flexible Wire

Price: S$11.70

OS 22423100 Cylinder & Piston Assembly for 21XZ-B Spec 2

OS 22423100 Cylinder & Piston Assembly for 21XZ-B Spec 2

This OS Cylinder & Piston Assembly is a replacement part for 21XZ-B Spec 2 engine. 

OS 22423100 Cylinder & Piston Assembly for 21XZ-B Spec 2
Price: S$174.00
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OS 22425000 Conrod for 21XZ-B Spec 2

OS 22425000 Conrod for 21XZ-B Spec 2
This OS Conrod is a replacement part for 21XZ-B Spec 2 engine. 
OS 22425000 Conrod for 21XZ-B Spec 2

Price: S$38.60
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OS 23981520 Dust Cover (21E) for 30VG

OS 23981520 Dust Cover (21E) for 30VG
This OS Dust Cover (21E) is a replacement part for 30VG engine. 
OS 23981520 Dust Cover (21E) for 30VG

Price: S$6.40
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OS 28703200 Piston for 105HZ

OS 28703200 Piston for 105HZ
This OS Piston for a replacement part for 105HZ engine. 
OS 28703200 Piston for 105HZ

Price: S$75.20
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OS 71530530 Crankshaft Clamp for GT15,105,91HZ

OS 71530530 Crankshaft Clamp for GT15,105,91HZ
This OS Crankshaft Clamp is a replacement part for GT15,105,91HZ engines. 
OS 71530530 Crankshaft Clamp for GT15,105,91HZ

Price: S$16.50
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OS 22013000 Cylinder & Piston for 21XZ

OS 22013000 Cylinder & Piston for 21XZ
This OS Cylinder & Piston is a replacement part for for 21XZ engine. 
OS 22013000 Cylinder & Piston for 21XZ

Price: S$174.00
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OS OMA-3825-750W High Performance Brushless Motor

OS OMA-3825-750W High Performance Brushless Motor-1
OS High Performance Brushless Motor

High-Powered Brushless Aircraft Motors from O.S.!
The OS OMA-3825-750W High Performance Brushless Motor is designed equivalent for 2-stroke 25~32 size airplanes. It features a new main shaft that will allow the motor to be either front or back mounted

OS OMA-3825-750W High Performance Brushless Motor
Price: S$113.50

OS GF40 Gasoline 4-Stroke Engine with F-6040 Silencer

OS GF40 Gasoline 4-Stroke Engine with F-6040 Silencer-1
OS GF40 Gasoline 4-Stroke Engine with F-6040 Silencer-2
This all new OS GF40 is a 40cc 4-Stroke gasoline engine that offers a broad power characteristics suitable for sports as well as acro flights. It has a specially designed ignition module 'IG-04' equipped with a micro computer and include a safety feature of not operating the ignition if rpm is below 120rpm. Its new F-6040 silencer supplied provides very efficient silencing effect. 
OS GF40 Gasoline 4-Stroke Engine with F-6040 Silencer
Price: S$947.50
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OS Max 55AX with E-3071 Silencer

OS Max 55AX with E-3071 Silencer-1
OS Max 55AX with E-3071 Silencer-2

The OS 55AX is a high performance two stroke engine designed for sports and aerobatic models. Its new E-371 silencer (Powerbox) develops very effective muffling and the 40K carburetor needlevalve assembly has now been angled backwards for safety. The 55AX's compact body enables it to be fitted within most cowls. 

OS Max 55AX with E-3071 Silencer
Price: S$217.60
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OS FS-91S II-P Engine

OS FS-91S II-P Engine-1

The FS-91S II-P Engine is fitted with the new O.S. PD-07 diaphragm type fuel pump and matching Type 60N carburettor incorporating a built-in pressure regulator. These features ensure that fuel/air mixture strength is maintained at a constant level through maneuvers, for consistent performance and reliable throttle response. 

OS FS-91S II-P Engine
Price: S$520.50
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OS T-1060 L52 Tuned Silencer Assembly Complete Set (EFRA2661)

OS T-1060 L52 Tuned Silencer Assembly Complete Set (EFRA2661)

This OS T-1060 L52 Silencer employs a new manifold installing system. Manifold is clamped on the silencer with two semicircular aluminum pieces (silencer ring) and a C spring. The new installation system reduces the risk of silencer and manifold coming apart. This allows for tail pipe direction minor adjustments too. The silencer is designed for use with OS Max 12XZ, OS Speed 12XZ, 12TG and 12TZ engines.

OS T-1060 L52 Tuned Silencer Assembly Complete Set (EFRA2661)
Price: S$146.00
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