Cylinder with piston PIAGGIO NRG 40mm 4-corner TW

PIAGGIO NRG cylinder with piston, 40 mm bore, four-corner. In the box – cylinder, piston, gudgeon pin, circlips, rings, rubber sealing rings and two gaskets.

• The set shows: a cylinder, a piston, a gudgeon pin, two pin circlips, two piston rings, a large black sealing ring, inside it – another, smaller ring and four small rubber rings, a light-coloured cylinder base gasket and, lying on it, an intake flange gasket
• The body is smooth, with no cooling fins, and the set includes a large sealing ring – this is a cylinder for a liquid-cooled engine
• In the maker's drawing the cylinder bore is marked 40 mm – the same figure as in the name
• From above the flange is four-corner, the four stud holes are set out at 48 × 48 mm; the housing height is 85 mm, the fin-less section 55 mm, the intake flange 20 mm and 46 mm
• The piston is Ø 40 mm and 52 mm high, 20 mm from the top ring to the pin bore; the pin is Ø 12 mm and 32 mm long
• One of the three photos is the same file as the NRG 47 mm item's
• The listing also has a PIAGGIO NRG 47 mm four-corner – the housing there is the same, the bore, piston and the 38 mm pin differ
• Wear is visible to the naked eye: longitudinal scratches on the cylinder wall, a polished piston skirt, or a ring that rocks loosely in its groove – then the whole group is replaced at once
• Apart from the sealing ring, there are no more gaskets in the photo; the listing has five PIAGGIO gasket sets, including ones for liquid-cooled cylinders – which of them is for the NRG, the maker did not state, so write us your model

To be straight with you: what the letters "TW" in the name mean, the maker did not state, and we do not guess. Which specific models and years this cylinder is for, the maker did not state, and we do not guess — write us your machine or send a photo of the old part. Before ordering, remove the spark plug and use a caliper to measure the old cylinder's bore, the pin thickness and the distance between the studs — we will check it before you order.

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