1 EXHIBIT 23.1 CONSENT OF INDEPENDENT AUDITORS We consent to the incorporation by reference in the following Registration Statements of Park-Ohio Holdings Corp., for the registration of its common stock of our report dated February 15, 1999 relating to the consolidated financial statements of Park-Ohio Holdings Corp., included in this Annual Report on Form 10-K for the year ended December 31, 1998. Shares/Dollars Registration Statement Description Registered - ---------------------- --------------------------------------------------- ---------------- Form S-8 (33-64420) 1992 Stock Option Plan 350,000 Form S-8 (33-01047) Individual Account Retirement Plan 1,500,000 Form S-8 (333-28407) Amended and Restated 1992 Stock Option Plan and 750,000 1996 Non-Employee Director Stock Option Plan Form S-8 (333-58161) 1998 Long-Term Incentive Plan 550,000 Form S-4 (333-46931) Formation of PKOH Holding Corporation 11,000,000 /s/ Ernst & Young LLP Cleveland, Ohio March 26, 1999