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..
£1,487.50 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)..
£5.50 Ex Tax: £4.58
OS GF40 Petrol with F-6040 Silencer (L-OS39400)

OS GF40 Petrol with F-6040 Silencer (L-OS39400)

OS GF40 Petrol with F-6040 Silencer (L-OS39400)..
£595.00 Ex Tax: £495.83
OS GF-30 Petrol with F-6040 Silencer (L-OS3A000)

OS GF-30 Petrol with F-6040 Silencer (L-OS3A000)

OS GF-30 Petrol with F-6040 Silencer (L-OS3A000)..
£538.49 Ex Tax: £448.74
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
OS Engine GT55 Petrol (L-OS38000)

OS Engine GT55 Petrol (L-OS38000)

OS Engine GT55 Petrol (L-OS38000)..
£503.50 Ex Tax: £419.58
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
OS Engine Speed 21XZ-B Spec III (L-OS1AN00)

OS Engine Speed 21XZ-B Spec III (L-OS1AN00)

OS Engine Speed 21XZ-B Spec III (L-OS1AN00)..
£385.00 Ex Tax: £320.83
OS GT15HZ Petrol with 15HZ Powerboost Pipe (L-OS38153)

OS GT15HZ Petrol with 15HZ Powerboost Pipe (L-OS38153)

OS GT15HZ Petrol with 15HZ Powerboost Pipe (L-OS38153)..
£411.49 Ex Tax: £342.91