Jaylec Black Series High Performance Upgrade Alternators – Built for 4x4 Power

Nissan Navara D40 Parthfinder R51 YD25DDTI 12V 200A Alternator

Vehicle Compatibility:

• Nissan Navara D40 YD25DDTI 2.5L DSL
• Nissan Pathfinder R51 YD25DDTI 2.5L DSL

Please note a battery positive wiring upgrade is needed for this alternator.

We recommend this product be installed by a licensed Auto Electrician.

When your vehicle demands more than what the factory ever intended, the Jaylec Black Series High Performance Upgrade Alternator delivers the muscle to keep every accessory running strong—on the tracks, at camp, or deep in remote touring country.

Purpose-built for 4x4, performance, heavy-duty, and road-transport applications, the Black Series range is engineered for vehicles running high-demand electrical systems. From dual batteries to modern comms, lighting, and recovery gear, these alternators provide the reliable output needed to keep your adventure powered.

Why Upgrade to the Black Series Alternator?

• Replaces the Standard 150A Alternator
  A true upgrade for vehicles requiring additional charging capacity.
• Higher Charge at Lower RPM
  Designed to deliver strong charging output even at idle or low engine speeds.
• Designed for Vehicles That Outgrow Their O.E. Alternator
  Perfect for accessory-loaded 4WDs where factory charging systems fall short.
• Higher Output at Lower Cut-In Speeds
  Delivers strong charging performance right from idle, ideal for slow technical driving, winching, and long periods of idling at camp.
• Built for High-Demand 4x4 Accessories
  Capable of powering and maintaining charge while running:
  • Fridges & dual battery systems
  • Driving lights and upgraded lighting
  • Winches
  • Dual thermo-fans
  • Electric steering & injection systems
  • Air conditioning systems
  • Navigation, monitoring & comms equipment
• Heavy-Duty Engineering for Harsh Conditions
  Premium bearings, efficient cooling fans, and a rigorous design/testing process ensure the Black Series outperforms standard and many aftermarket units.

Hot & Cold Amperage Rated – Genuine Performance Data

The Jaylec Black Series is one of the few ranges rated both Hot and Cold, giving 4x4 owners realistic output expectations under real-world operating temperatures. This is a major advantage when reliability matters most.

COLD 13.5V @ 205A

HOT 13.5V @ 182A

Built to Outperform — Not Just Replace

With significantly improved electrical performance and durability, these alternators are crafted to replace and outperform the most popular high-output units on the market today. Whether you’re touring, towing, or pushing deep off-grid, the Black Series delivers dependable power when it counts.

Warranty Information – 4WD Applications

2 Years or 50,000km (whichever comes first)
Applicable to all 4WD installations.

Warranty Exclusions

The warranty does not cover alternators that have been:

• Submerged in water
• Used in vehicles with electrical loads of 85% or more of the alternator’s hot-rated output
• Run with a lithium battery system without a DC-to-DC charger
• Installed with wiring that has not been upgraded to handle the alternator’s increased output

These conditions ensure safe operation and protect the alternator from overload or improper installation.

Power Your 4x4 the Right Way

When you’re running serious gear, a stock alternator simply won’t keep up. Upgrade to the Jaylec Black Series High Performance Alternator and enjoy reliable, consistent charging for every adventure— no matter how demanding the load.