Jaylec 130 Amp Upgraded Alternator & Optional Wiring Kit - Gen 3 Isuzu D-Max RG & Gen 3 Mazda BT-50 4JJ3 3.0Ltr

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Struggling with the factory 90 Amp Alternator keeping up with your additional Accessories on your new 4JJ3 3.0Ltr BT-50 & D-Max?

Jaylec's 130 Amp Upgrade Alternator is a good well priced solution for some much needed additional Amperage.

2 Year / 25,000km Warranty


To upgrade the alternator on these models, you will need to upgrade the Alternator & Earth wiring harness to accomodate the larger Alternator.

For those wanting an all in one solution, we have developed an off the shelf kit for these to be able to accomodate most common Alternator Upgrades up to 160A output.

This kit fits with a factory sized battery & replaces the main power feed from the Alternator across to the battery tray area.

It requires you to drill 2 holes in the tray beside the battery on the engine side of the battery tray with the battery removed to fit the Mega Fuse Holder that is required to upgrade the main power fuse to handle the greater alternator output.
You can either Nut and Bolt it down, or just fit it using 2 roofing style metal screws.

The Positive cable then runs from the fuse holder up to the battery positive.

The Earth Cable supplied piggy backs on to your current engine bay earth and engine earths to increase the capacity back to the battery.



Optional Wiring Harness Kit Includes:

  • 1x 175A Rated Upgraded Engine, Battery & Earth Wiring Harness 
  • 1x Mega Fuse Holder
  • 2x 175A Mega Fuses


Professional Installation is recommended.


Alternator Specifications
Voltage 12V
Amperage 130A
Mount Leg ID 55mm
C-C Mounts 161mm
Hole ID Top M8
Hole ID Bottom 10mm
Shaft Size  
Pulley Type 7PV, CLUTCH
Pulley Belt Width  
Pulley Grooves 7
Pulley Diameter 62mm
Regulator Type INTERNAL
Connections Plug #  
Terminals B+, LIN
Excitation EXTERNAL


SKU 345386
Brand Jaylec

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