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Home / Lighting / Driving & light bars

Black Series BKS-240TP 240A alternator, three quarter view showing the black powder coated housing and the 7PV clutch pulleyRear view of the Black Series BKS-240TP alternator showing the rear entry regulator, the B plus terminal stud and the LIN connector plugOutput curve for the BKS-240TP plotting hot amps against alternator RPM, climbing steeply from around 1200 RPM and levelling out near 216ADimensioned drawing of the BKS-240TP showing the 7PV pulley, mounting hole sizes, 163mm overall length and the LIN plugManufacturer fitting notes for the BKS-240TP covering cable and fuse requirements, battery charging advice, the hot speed current table and lithium battery limitations

Jaylec

Black Series ALT 12V 240A, TOYOTA PRADO, HIACE, LC76/78/79 1GDFTV, 2GDFTV

BKS-240TP

The BKS-240TP is the Black Series 240A alternator for Toyota's 1GD-FTV and 2GD-FTV diesel engines, covering the Prado, the HiAce and the LandCruiser 76, 78 and 79 Series. It delivers 13.5V at 240A cold and 13.5V at 217A hot, which…

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Important note

Jaylec alternators are designed and tested for use with standard lead-acid battery systems. These units are not suitable for direct use with lithium (LiFePO4) battery setups

We accept
Suits Toyota diesel models fitted with the 1GD-FTV or 2GD-FTV engine, including the Prado, the HiAce and the LandCruiser 76, 78 and 79 Series.

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CHARGES HARDER AT IDLE

Higher charge at lower RPM, so the gain shows up around camp rather than only at highway speed.

DIRECT REPLACEMENT FIT

Factory mounting location, 160mm spacing and a 17mm shaft. No brackets or spacers needed.

240A REPLACES 120A

Double the factory output, so a loaded touring system is no longer sitting at capacity.

OE INTERNALS THROUGHOUT

OE stator, rotor, regulator, rectifier and clutch pulley, in a black powder coated housing.

2 YEAR WARRANTY

2 years or 25,000km against defects in materials and workmanship, direct from the manufacturer.

The BKS-240TP is the Black Series 240A alternator for Toyota's 1GD-FTV and 2GD-FTV diesel engines, covering the Prado, the HiAce and the LandCruiser 76, 78 and 79 Series. It delivers 13.5V at 240A cold and 13.5V at 217A hot, which is roughly 120A more than the factory unit, and it makes that extra current available at lower engine speeds rather than only once you are up and moving. That matters most at idle and around camp, where a standard alternator has the least to give and your accessories are still drawing.

It is a direct replacement in the factory mounting location, with a 160mm centre to centre mount spacing, a 52mm mount leg ID and a 17mm shaft. The unit runs a 7PV clutch pulley at 65mm diameter, a rear entry regulator, and OE stator, rotor, regulator, rectifier and clutch pulley internals. The housing is black powder coated, so it looks like it belongs under the bonnet rather than like a reconditioned part.

Plan for the wiring before you order. A battery positive wiring upgrade is required with this alternator. Run 0 B&S cable from the alternator to the battery with a 250A mega fuse inline of the new B+ terminal. The factory cable was sized for the standard unit and will not safely carry 240A, and leaving it in place is the single most common reason a high-output alternator never delivers what it is rated for. We build complete kits that pair this exact alternator with a harness already built to that spec:

Toyota Prado 150 Series 1GD 240A Upgraded Alternator Kit →
This alternator plus the matching harness for the Prado 150.

LandCruiser 70 Series 1GD 2.8L 240A Upgraded Alternator Kit →
The same alternator with the harness cut for the 70 Series 2.8L.

Elevate Alternator Upgrade Wiring Kit, LC70 2.8L 1GD-FTV →
The harness on its own, if you already have the alternator.

One limitation to know before you buy: this alternator must not be connected directly to a lithium battery, and doing so voids the warranty. A DC to DC charger goes between the alternator and any LiFePO4 bank. Wired that way it works exactly as it should, and gives the charger far more current to draw on than a standard alternator ever could.

  • 13.5V at 240A cold and 13.5V at 217A hot
  • Around 120A more output than the OE standard alternator
  • Higher charge at lower RPM, so it delivers at idle rather than only at speed
  • Direct replacement in the factory mounting location
  • Rear entry regulator with OE stator, rotor, regulator, rectifier and clutch pulley
  • 7PV clutch pulley, 65mm diameter
  • Black powder coated housing

Part Number: BKS-240TP

Voltage: 12V

Output: 13.5V at 240A cold, 13.5V at 217A hot

Mount Leg ID: 52mm

Mount Spacing: 160mm centre to centre

Top Hole ID: 12mm

Bottom Hole ID: M10, 11mm

Shaft Size: 17mm

Pulley: 7PV clutch, 7 grooves, 65mm diameter

Regulator Type: Internal, rear entry

Connection Plug: EP85-2

Terminals: B plus and LIN

Excitation: External

Ground: Negative

Mount leg distance: 160mm center to center

Pulley diameter: 65mm

Shaft diameter: 17mm

Everything this install needs

0 of 0 in the box
  • Direct replacement with OE matched fitment, using the factory mounting location.
  • Run 0 B and S cable for the main B plus wire from the alternator to the battery.
  • Fit a 250A mega fuse inline of the new B plus terminal.
  • Do not connect this alternator directly to a lithium battery. A DC to DC charger must be fitted between the two, and connecting direct voids the warranty.
  • Keep the vehicle battery on charge if it is not driven weekly. High amperage units can damage a battery that is sitting in a low state of charge.
  • This unit has a rear entry regulator, so allow for the cable approach behind the case.
  • Disconnect the battery terminals before starting work, and check belt condition and tension while the alternator is out.
  • Confirm charging voltage once everything is back together.
Suits Toyota diesel models fitted with the 1GD-FTV or 2GD-FTV engine, including the Prado, the HiAce and the LandCruiser 76, 78 and 79 Series.

Q: Will this alternator fit my vehicle?
A: It suits Toyota diesels running the 1GD-FTV or 2GD-FTV engine, which covers the Prado, the HiAce and the LandCruiser 76, 78 and 79 Series. It is a direct replacement in the factory location.

Q: What cable and fuse do I need for the wiring upgrade?
A: Run 0 B and S cable for the main B plus wire from the alternator to the battery, with a 250A mega fuse inline of the new B plus terminal. Our complete kits include a harness built to that spec along with the fuse and holder.

Q: Do I have to upgrade the wiring?
A: Yes. A battery positive wiring upgrade is required and is not included with the bare alternator. The factory cable was sized for the standard unit and will not safely carry 240A.

Q: Can it charge a lithium battery?
A: Not directly, and connecting it straight to a lithium battery voids the warranty. A DC to DC charger must be fitted between the alternator and the lithium bank. Wired that way it works fine, and gives the charger far more to draw on.

Q: How much output does it actually make at low revs?
A: The manufacturer hot test figures at 13.5V are 117A at 1801 alternator RPM, 155A at 2200, 174A at 2501, 190A at 3200 and 206A at 4001, levelling out around 216A. Output starts from roughly 1200 alternator RPM.

Q: Do I need to do anything differently with my starting battery?
A: If the vehicle sits for more than a week at a time, put the battery on a charger. A high output alternator will push hard into a flat battery, and lead acid batteries do not like accepting that much current at once. Keeping it topped up means the alternator never has to, which is easier on both.

Q: Is it a clutch pulley or a fixed pulley?
A: A 7PV clutch pulley with 7 grooves, matching the factory arrangement for these engines.

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