Fitment: for GX240 8HP, GX270 9HP, GX340 11HP, GX390 13HP Portable Generator. Product description: Condition: item 182F and 188F open-frame gasoline generators that produce between 5,500 and 8,000 watts Suitable from 5500 to 8000 W Blue Max, Rural , , , , , Pro-Series, ETQ, All power, Replace Part Number: For E * 6500 GX390 13HP 16100-Z5R-743 For E * 5000 GX340 11HP 16100-Z5L-F11 Colour:as shown Material:aluminum : Air Intake Diameter: 29.90 mm The distance between the holes of the air intake: 52.40 mm Intake motor diameter: 26.90 mm Engine Inlet Hole: 52.10mm Package Contents: 1*Carburetor Note: Please compare our products with your motorcycle or old parts that you have, by size, model and others before you buy Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.