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Isuzu DMAX RG 4JJ3 Upgraded Alternator Kit (BKS-240DMAX)

SKU: KIT-DMAX-RG-4JJ3-BKS240DMAX
Regular price $1,210.00
Taxes included. Shipping calculated at checkout.

Suitable for Isuzu DMAX models with 4JJ1 and 4JJ3-TCX diesel engines.



Elevate Automotive upgraded alternator wiring harness

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

Shaft diameter: 17mm

Pulley diameter: 62mm

Custom-fit wiring lengths designed to suit D-MAX / BT-50 engine bay layout.

This is a high-output alternator upgrade designed for use with modified and touring-focused 4WD electrical systems. Correct installation is required for optimal performance.

Isuzu DMAX RG 4JJ3 Upgraded Alternator Kit (BKS-240DMAX)

$1,210.00
Description

Upgrade your Isuzu DMAX RG with a high-output charging system built for modern touring, towing, and heavy-duty 4WD electrical demands. This kit combines the BKS-240DMAX Black Series 240A alternator with the Elevate Automotive upgraded alternator wiring harness, engineered specifically for the 4JJ3 platform.

Designed to support dual battery systems, lithium setups, and high accessory loads, this upgrade delivers strong, stable charging performance where factory systems struggle under pressure.

Whether you’re running fridges, UHF radios, compressors, canopy setups, or long-distance touring accessories, this kit is built to keep up.

FEATURES
  • High-output 240A charging capacity
  • Designed specifically for the 4JJ3 platform
  • Strong, stable voltage under load
  • Ideal for touring, towing, and work setups
  • Supports dual battery and high-demand electrical systems
  • Internal LIN regulator for modern vehicle compatibility
  • OE-style fitment for straightforward install
  • Efficient cooling and durable construction
  • Perfect for fridges, canopy setups, lighting, compressors, and inverters
Specifications
  • 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
Installation Information


This kit is designed for straightforward installation using the included Elevate Automotive wiring harness tailored to the specific engine platform. Professional installation is strongly recommended to ensure correct ECU integration, charging regulation, and dual battery system setup.

Warranty Information

2‑year / 25,000 km manufacturer warranty

PICKUP OR SHIPPING

Australia-wide shipping available

Pickup available from Elevate Automotive (by arrangement)

Shipping times vary depending on stock availability

FAQ's

Q: Will this fit my DMAX?

A: This kit suits Isuzu DMAX RG models (2020+) with the 4JJ3 diesel engine.

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

Q: Do I need upgraded wiring?
A: Yes — this kit includes an upgraded alternator wiring harness to safely support the increased output.