Perkins schedule service kit T402374 for use with Electrical Power (genset) 404D-22G engines, containing all the parts required for one 500 and one 1000 hour service as recommended in the Operation and Maintenance Manual. All the parts packaged as one easy to use kit, simple re-order with one part number, servicing with genuine Perkins Parts increases your engine performance and productive life. Includes oil, fuel and air filters, rocker / valve train gasket for valve clearance check and fan belt for preventative maintenance. Contains: 140517050, 26561117, 130306360, T80109107 and 111996401. For use on serial numbers GV51790, GN65750 and GN83012 and some GN, GR, GP, GV and HP serial numbers, check contents appropriate before purchase