Carburetor Fits For Mercruiser Stern Drive, for Mercury Marine. Our marine carburetors are fits for most 2.5L and 3.0L 2 barrel 4 cylinder engines. Replacement for Mercruiser Stern Drive, for Mercury Marine,3.0L ALPHA ONE - 3.0L GM 181 I/L4, This unit will work on all 4 cylinder engines 2.5 and 3.0 4.3 equipped with the 2 barrel Mercarb. Also works on V8 5.0L 305, and 5.7L 350 for Mercruiser engine with 2 barrel mercarb. Replaces Part Numbers: For Mercury Marine 3310-864940A01 8M0045397 3310-8M0045397 3310-806078A2 3310-807504A1 Fitment:Fits For Mercruiser Stern Drive, for Mercury Marine. Marine Carburetor Rochester 2 Barrel With Electric Choke Replaces Stock 2 Barrel Mercarb 3310-864940A01 Replace Your old Equipment 2 Barrel For Mercarb/Mercruiser Carburetor With Electric Choke And Side Fuel Inlet Please check the carburetor size to prevent wrong order. Condition:Brand New Choke Type:Automatic Choke Colour:As Shown Material:Metal Size:Base Plate Measurement:3 3/4 x 2 inches Package Contents: 1 x Carburetor 1 set x Mounting Accessories 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.