O.S. GT33 Petrol Engine with E-5030 Pitts Style Muffler (L-OS38300)

O.S. GT33 Petrol Engine with E-5030 Pitts Style Muffler (L-OS38300)

The second engine in the latest O.S. GT series of petrol engines is designed for the new class of mo..
£358.99 Ex Tax: £299.16
O.S. FR7-420 Sirius 7 Four Stroke 7 Cyclinder Engine (L-OS37010)

O.S. FR7-420 Sirius 7 Four Stroke 7 Cyclinder Engine (L-OS37010)

Since 1986, O.S. owners have enjoyed the unique experience of owning and operating the fabulous FR5-..
£4,024.99 Ex Tax: £3,354.16
O.S. GT120T Twin-Cylinder 120cc Petrol Engine (L-OS3AB00)

O.S. GT120T Twin-Cylinder 120cc Petrol Engine (L-OS3AB00)

O.S. GT120T Twin-Cylinder 120cc Petrol Engine (L-OS3AB00)The O.S. GT120T is a 120cc flat twin petrol..
£1,487.49 Ex Tax: £1,239.58
O.S. FF-320 Pegasus Four Cylinder Four Stroke Engine (L-OS36410)

O.S. FF-320 Pegasus Four Cylinder Four Stroke Engine (L-OS36410)

Closely following the design of many full-size light aircraft engines, the O.S. Pegasus 320 is a hor..
£2,099.99 Ex Tax: £1,749.99
OS Engine GF-40R w/F-6040 silencer (L-OS3AF00)

OS Engine GF-40R w/F-6040 silencer (L-OS3AF00)

OS Engine GF-40R w/F-6040 silencer (L-OS3AF00)..
£5.49 Ex Tax: £4.58
O.S. FT 160 Gemini Twin Cylinder Four Stroke Engine (L-OS36108)

O.S. FT 160 Gemini Twin Cylinder Four Stroke Engine (L-OS36108)

This is a larger bore version of the original FT120 Gemini - completely redesigned to take advantage..
£831.49 Ex Tax: £692.91
O.S. Speed R2103 and T-2080SC Tuned Pipe Combo - .21 On-Road Competition Engine (L-OS1AY01)

O.S. Speed R2103 and T-2080SC Tuned Pipe Combo - .21 On-Road Competition Engine (L-OS1AY01)

O.S. Speed R2103 and T-2080SC Tuned Pipe Combo - .21 On-Road Competition Engine (L-OS1AY01)The OS SP..
£485.99 Ex Tax: £404.99
O.S. GT60 Petrol Engine (L-OS38608)

O.S. GT60 Petrol Engine (L-OS38608)

The new GT60 is the largest in the range of O.S. Petrol Engines. It features liner-less cylinder int..
£559.99 Ex Tax: £466.66
O.S. Speed R2103 - .21 On-Road Competition Engine (L-OS1AY00)

O.S. Speed R2103 - .21 On-Road Competition Engine (L-OS1AY00)

O.S. Speed R2103 - .21 On-Road Competition Engine (L-OS1AY00)..
£398.49 Ex Tax: £332.08
O.S. MAX 105HZ-R Heli Engine W/Powerboost Pipe (L-OS18751)

O.S. MAX 105HZ-R Heli Engine W/Powerboost Pipe (L-OS18751)

Identical to the regular 105HZ-R technically but supplied with the latest Powerboost 105 pipe. The p..
£489.99 Ex Tax: £408.33
O.S. Speed 21XZ-B Ty 110% Combo (L-OS1217E)

O.S. Speed 21XZ-B Ty 110% Combo (L-OS1217E)

O.S. Speed 21XZ-B Ty 110% Combo (L-OS1217E)..
£376.49 Ex Tax: £313.74
O.S. FSa-72 II with F Silencer (L-OS34721)

O.S. FSa-72 II with F Silencer (L-OS34721)

O.S. FSa-72 II with F Silencer (L-OS34721)The O.S. FSa-72 II is the latest version of this popular s..
£367.49 Ex Tax: £306.24