I am selling this carb as a Usable Substitute For VD77 CCKA-MS/2111G This is a FACET ZENITH VD76A VD76 0-13953 FITS CERTAIN CCK AND CCKA MODELS 16.5 HP TRACTORS, ETC Based on my nearly 20 years experience of selling Onan carburetors, I believe this carburetor model can be adapted to replace various Facet Zenith or Marvel Schebler for the CCK and CCKA engines. CCKA-MS/2111G CCKA-MS/2567G CCKA-MS/2813J CCKA-MS/3110J CCKA-MS/3612J The spec on the 142-0593 calls it a VD77. VD denotes venturii diameter.= .77". This is the inside diameter of the throat of the carb as you look through it at the nozzle. Air flow is constricted at this point. Many lesser HP CCK engines use a VD58 or VD63 or VD65. I encourage you to try this one out. Most likely you will have to salvage various linkage parts from your existing carburetors to use with my new carburetor. But I guarantee once in place it will make your engine run like new. 142-0593 ONAN CARBURETOR ZENITH VD76A You can easily remove and reverse the butterfly choke valves if necessary. You may have to reuse some linkage from you old carb. NEW OLD STOCK FEEDBACK AND QUESTIONS HERE IS ENCOURAGED