Engine kit Derbi Euro 3, Euro 4 Top Performances

Cylinder, piston, crankshaft and bearings kit Top Performances Derbi Euro 3 and Euro 4

Pack high engine and low engine new adaptable for motorcycle 50cc Derbi, Gilera, Aprilia, Speedcool and other motorbikes Derbi Euro 3 egg Euro 4 from 2006.

We encountered assembly problems on the motors Derbi Euro 4. Indeed, on some crankcases you have to file the right crankcase so that the cylinder does not hit against the latter (see last photo).

Includes

• 1 x cylinder block
• 1 x piston
• 1 x cylinder head
• 1 x cylinder block
• 2 x piston rings
• 2 x circlips
• 1 x gudgeon pin
• 1 x upper coolant connection
• 1 x probe adapter for Derbi Euro 4
• 4 x studs
• 1 x cylinder cap right side
• 1 x set of seals
• 1 x crankshaft
• 1 x Piston Needle Cage
• 2 6204 C3 SKF Crankshaft Bearings
• 1 x left crankshaft oil seal
• 1 x right crankshaft oil seal

Technical characteristics and dimensions of the engine pack

• Brand of the set: Top Performances

• Cylinder block material: cast iron
• Cylinder color: gray
• Piston diameter: 39.885 mm
• Piston pin diameter: 12 mm
• Temperature probe thread diameter: 14 mm (Euro 3)
• No threading of the probe: 1.50
• Temperature probe thread diameter: 12 mm (Euro 4)
• No threading of the probe: 1.50

• Connecting Rod Inner Diameter: 15mm
• Outer Diameter Crankshaft Bearing Seats: 20 mm
• Crankshaft total length: 180mm
• Right side crankshaft thread diameter: 10 mm
• Left side crankshaft thread diameter: 10 mm

• Crankshaft bearing dimensions: 20x47x14 mm
• Inner diameter of the bearings: 20 mm
• Outer diameter of the bearings: 47 mm
• Bearings width: 14 mm

• Dimensions of the oil seals: 20x35x7 mm
• Inner diameter of the oil seals: 20 mm
• Outer diameter of the oil seals: 35 mm
• Oil seal thickness: 7 mm