The Kubota 1J302‑60230 relay is an OEM-grade electrical component designed to provide switching functions for auxiliary systems such as engine block heaters and alternator kits. It’s integral to the functionality of heater wiring harnesses (e.g. kits for Cab/ROPS models) and ensures consistent power delivery under load.
Built according to precise Kubota specifications, this relay offers dependable performance in both utility tractors and specialized models equipped with optional electrical accessories.
Compatible Models & Applications
Relays with part 1J302‑60230 are fitted or recommended for:
B Series 4WD Tractors: B2650HSD, B3350HSD, B3350SUHSD
LX Series: LX2610HSD, LX2610SUHSD, LX3310HSD, LX3310HSDC
M Series (Cab/ROPS with Heater Kit): M5‑091HDC, M5660SUH, and newer M‑series tractors equipped with heater or alternator harness kits
Other Models fitted with Kubota heater or electrical wiring kits





