For Kawasaki Models:
JS440 1977-1981

OEM Replacement Part Number 21164-515 Product Type Starter Solenoid Relay Rated Voltage 12V DC Terminal Configuration 4-Pin (2 large power terminals, 2 small control terminals) Housing Material High-temperature resistant ABS plastic + anti-corrosion zinc alloy base Operating Temperature Range -40°F to 185°F (-40°C to 85°C) Mounting Hole Diameter 6mm (0.24 inch) Ingress Protection Rating IP65 Waterproof & Dustproof Interchange Part Numbers 21164515, SMU6014, 240-54004 Average Service Life ≥50,000 normal operation cycles Compatible Product Category Kawasaki Stand-Up Personal Watercraft (Jet Ski) Core Contact Material High-conductivity copper alloy Installation Position Engine compartment side near starter motor