Voltage Regulator with Harness — Direct OEM Replacement for Exmark Quest & Radius E/S and Toro TimeCutter, Titan, Z‑Master — 136-7879 / 127-9219

Replacement voltage regulator with harness engineered for Exmark and Toro zero-turn mowers. This unit provides precise voltage regulation to keep the electrical system stable and to restore proper battery charging while preventing overvoltage or undercharging. Exmark fitment: Quest E-Series 34, 42, 50, 54; Quest S-Series 42, 50, 54, 60; Radius E-Series 44, 48, 52, 60; Radius S-Series 48, 52, 60. Toro TimeCutter fitment: Compatible with models 4225, 6000, HD MyRide 48/54/60, HD X4850/X5450, MX4200, MX4250, MX4275, MX4275T, MX5000, MX5050, MX5075, MX5075T, MX5475, MX6050, SS4225, SS4250, SS5000, SS5425, SW4200, SW5000, SW5425, SWX4250, SWX5000, SWX5050, XS4850, ZS4200, ZS4200T, ZS5000. Toro Titan & Z-Master fitment: Fits Titan HD 1500/2000 series (48, 52, 60), Titan MyRide 48/54/60, Titan X4850, X5450, XS4850, XS5450, ZX4800, ZX5400, ZX6000, TRX-250 Trencher; and Z-Master 2000 series (48, 52, 60) including MyRide and Turbo Force variants. OE replacement: Direct swap for part numbers 136-7879 and 127-9219. Built from premium-grade components for enhanced thermal stability, vibration resistance, and consistent voltage control under load. Warranty & confidence: Restores reliable charging performance for your FIT Exmark or Toro equipment and helps avoid electrical faults caused by improper charging. Covered by a one-year unlimited-mileage warranty.