OEX Alternator 12V 90A Denso Style – 1K0K18300 (Suits Mazda BT50 1.9L 4X4)
The OEX Alternator 1K0K18300 is a reliable 12V, 90-amp Denso-style alternator designed as a direct replacement unit for the Mazda BT-50 1.9L 4X4 platform. Built for stable and consistent charging performance, it ensures dependable operation of the vehicle’s electrical system under standard driving conditions.
Manufactured to OE specifications using high-quality components, this alternator delivers long service life, durability, and accurate fitment for the specified application range.
Key Features
- 90A output capacity – suitable for standard electrical systems
- Denso-style OE replacement design – direct fitment application
- Internal regulator – stable voltage control for consistent performance
- Pad mount configuration – OE-style installation
- 7 groove pulley system – reliable belt drive performance
- Brand new unit – not remanufactured
- 3-year passenger / 1-year commercial warranty
Specifications
- Voltage: 12V
- Output: 90 Amp
- Part Number: 1K0K18300
- Pulley Section: 7 Groove
- Pulley Outside Diameter: 55mm
- Regulator Type: Internal
- Mount Type: Pad Mount
- Mount Leg Thickness: ~50–58mm (application dependent)
- Mount Hole Diameter: 10 / 12mm
- Suits Unit Make: Denso
- Unit Type: New
Vehicle Applications
Commonly fitted to:
- Mazda BT-50 1.9L 4X4 (selected models, approx. 2021 onwards)
✔ Application-specific unit – fitment must be confirmed by part number 1K0K18300
✔ Designed for correct OE replacement in listed BT-50 configurations
(Always confirm compatibility using part number, mounting style, and existing unit before purchase, as BT-50 alternators vary by engine and electrical setup.)
Performance & Reliability
The 1K0K18300 alternator is engineered to deliver stable charging performance for standard vehicle electrical loads. It supports essential systems such as ignition, lighting, and onboard electronics, ensuring consistent voltage output during normal driving conditions.
Its OE-style design ensures accurate fitment and reliable long-term performance, reducing installation issues when correctly matched to the vehicle application.
Important Fitment Note
This alternator is vehicle-specific and must be matched by part number and mounting configuration. Even small differences in connectors, regulator type, or mounting points can prevent correct installation.
Why Choose OEX?
- Trusted aftermarket brand across Australia & New Zealand
- Designed for OE-style fitment and dependable performance
- Manufactured under ISO-certified quality standards
- Proven reliability across passenger and light commercial vehicles
- Strong warranty support for peace of mind
