Crown 31156K Tune Up Kit For Wayne M, E And O Oil Burners Wayne electrode tune up kit For use on burner models M, MSR, MH, ERA, EH, EHA, EHASR, OE, & OEA. Kit Includes 2 - Electrode assemblies (13286) 2 - Electrode Stems (12550) 2 - Buss bars 8” (10004-015) 2 - Insulator bushings (12408) 1 - Oil line 3/16” X 8” L (14452) 1 - Coupler w/end caps (13279) 1 - Setting gauge (14200) 1 - Elbow (13494) 1 - Buss bar support (13276) 1 - Instruction sheet Replaces Westwood S88-70, 31156,S88-72, 31156W