Carburetor Renew Kit | Holley 37-1541 Holley Carburetor Renew Kit | 37-1541 Rebuild kit for various Model 4010 & 4011 Holley carburetors. Kit contains all parts and gaskets that are necessary to restore like new performance to your marine carburetor Detailed instructions are also included to guide you through the rebuilding process Original Holley rebuild kit Replaces Holley 37-1541, 37-1445, 37-1447, 3-1447