Mazda BT-50 TF 4JJ3 240A Upgraded Alternator Kit (BKS-240DMAX)

High-output 240A charging capacity

Improved charging performance under load

Designed for 4JJ3 diesel platform

Supports dual battery and touring setups

Internal LIN regulator for modern vehicle compatibility

OE-style fitment for straightforward installation

Durable construction with efficient cooling

Ideal for high accessory loads (fridges, inverters, lighting, compressors)

Voltage: 12V

Output: 240A (cold) / ~217A (hot)

Regulator Type: Internal LIN

Pulley: 7PV Fixed Pulley

Pulley Diameter: 62mm

Shaft Size: 17mm

Mount Leg ID: 55mm

Mount Spacing: 161mm (centre-to-centre)

Terminals: B+, LIN

Ground: Negative

Direct bolt-in upgrade for compatible vehicles.

Upgraded battery positive wiring is included and required for correct operation.

Elevate alternator upgrade kits utilising the Jaylec Black Series BKS‑240DMAX 240A alternator are backed by a 2‑year / 25,000 km manufacturer warranty, applicable to 4WD and light commercial vehicle use.

Warranty coverage applies to the Jaylec alternator component only and covers defects in materials and workmanship when:

• Installed in the correct vehicle application
• Fitted with the required wiring upgrades
• Installed correctly by a qualified technician

Faults caused by incorrect installation, insufficient wiring upgrades, voltage-related issues, or use outside the intended application are not covered.

Pickup available from Elevate Automotive.

Shipping available Australia-wide and internationally.

Q: Will this fit my BT-50?
A: This kit suits Mazda BT-50 TF models running the 4JJ3 diesel engine (2020+).

Q: Can I run lithium batteries with this?
A: Not directly. A proper DC-DC charger or battery management system is required for lithium setups.

Q: Do I need to upgrade wiring?

A: Yes — this kit includes an upgraded wiring harness to handle the increased output safely.