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. Replace part number for 503281614, 503283208 Carburetor for 340 340E 340EPA 345 345E 345EPA 346XP 346EPA 350 350EPA 351 353 351EPA I 353EPA chainsaw Replace # for # C3-EL18B, Also fit for Jonsered 2150, 2152, 2145 models Type: Single Tube Carburetor Fitment Type: Direct Install Material: metal+plastic colour: black+silver Package Contents: 1 x Carburetor 1 x Air Filter 1 x Intake Manifold 1 x Intake Knuckle 1 x Rod 1 x Throttle Rod 1 x Fuel Hose 1 x Fuel Filter 1 x Spark Plug Only the above package content, other products are not included. 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. Note: 1. Please allow 1-3 mm error due to manual measurement and 1-3g weight error make sure you don't mind before ordering. 2. Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please make sure you don't mind before ordering, thank you! About Shipping: 1.please pay attention to your delivery address such as: name, street, house number, doorbell/email without name, etc. is correct, or the order will not be delivered correctly. 2.All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances. 3.During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours Hope you have a pleasant shopping experience!