Please Note: There are two types of this C3-EL18B carburetor, it is divided into single tube carburetor and double tube carburetor. Our carburetor in this listing is a SINGLE tube carburetor.There is no tubing interface at the lower right of the carburetor, it is no offer external primer bulb._x000D_ Replace part number for Husqvarna 503281614, 503283208_x000D_ Carburetor for Husqvarna 340 340E 340EPA 345 345E 345EPA 346XP 346EPA 350 350EPA 351 353 351EPA I 353EPA chainsaw_x000D_ Replace # for ZAMA # C3-EL18B, Also fit for Jonsered 2150, 2152, 2145 models_x000D_ _x000D_ Type: Single Tube Carburetor_x000D_ Fitment Type: Direct Install_x000D_ Material: metal+plastic_x000D_ colour: black+silver_x000D_ _x000D_ Package Contents: _x000D_ 1 x Carburetor_x000D_ 1 x Air Filter_x000D_ 1 x Intake Manifold_x000D_ 1 x Intake Knuckle_x000D_ 1 x Choke Rod_x000D_ 1 x Throttle Rod_x000D_ 1 x Fuel Hose_x000D_ 1 x Fuel Filter_x000D_ 1 x Spark Plug_x000D_ _x000D_ Only the above package content, other products are not included._x000D_ Note: Light reflection 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. _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ Due to differences in shooting equipment, displays, and production batches, the product may have slight color differences. This is normal, please refer to the actual product. We have tried our best to restore the true color through professional equipment, but we still recommend that you watch it under natural light for the most accurate visual effect.