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Home / Lighting / Driving & light bars

Black Series Upgraded Alternator 12V 240A, CHEV, GM APPS, 2 INCH STD MOUNTBlack Series Upgraded Alternator 12V 240A, CHEV, GM APPS, 2 INCH STD MOUNTBlack Series Upgraded Alternator 12V 240A, CHEV, GM APPS, 2 INCH STD MOUNTBlack Series Upgraded Alternator 12V 240A, CHEV, GM APPS, 2 INCH STD MOUNT

Jaylec

Black Series Upgraded Alternator 12V 240A, CHEV, GM APPS, 2 INCH STD MOUNT

BKS-240GM

MOUNT: Universal GM & Holden ApplicationsVEHICLE: GM, US & Australian Applications* FEATURE:• 13.5V @ 240A Cold / 13.5V @ 202A Hot• Upgraded technology• Black powder coated BENEFITS:• Suitable for vehicles with high electrical loads - performance and 4X4 vehicles,dual thermo-fans,…

$809.10$899.00 Save $89.90

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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
Suitable for GM, US, and Australian vehicles (with some modifications for Australian models). Designed for performance, heavy-duty, road transport, and 4x4 applications.

Shipping & collection

Worldwide shipping available*
In-store pickup
Professional installation available

*Shipping is calculated at checkout based on your location. Some products can't be delivered to every address.

MOUNT: Universal GM & Holden Applications
VEHICLE: GM, US & Australian Applications*

FEATURE:
• 13.5V @ 240A Cold / 13.5V @ 202A Hot
• Upgraded technology
• Black powder coated

BENEFITS:
• Suitable for vehicles with high electrical loads - performance and 4X4 vehicles,
dual thermo-fans, injection systems, air conditioning, electric steering,
monitoring systems, upgraded lighting systems, winches and maintaining
the battery at the desired levels.
• Higher charge @ lower RPM.
• Professional look.

*(Aust application needs some modifications)

WIRING MUST BE UPGRADED BEFORE FITTMENT
THIS ALTERNATOR IS FITTED WITH OE STATOR, ROTOR, REGULATOR AND RECTIFIER. PLEASE NOTE A BATTERY POSITIVE WIRING UPGRADE IS NEEDED FOR THIS ALTERNATOR.
Specifications:
Voltage 12V
Amperage 240A
Mount Leg ID 50mm
C-C Mounts 185mm
Hole ID Top M10
Hole ID Bottom 10mm
Shaft Size
Pulley Type 6PV, FIXED
Pulley Belt Width
Pulley Grooves 6
Pulley Diameter 56mm
Regulator Type INTERNAL
Series HAIR PIN
Connections Plug # EP39
Terminals B+,
Excitation EXTERNAL
Ground NEGATIVE
  • High output 240A charging capacity
  • Designed for heavy electrical loads (thermo-fans, injection, AC, steering, lighting, winches)
  • Black powder-coated finish for durability and professional appearance
  • Maintains battery charge at low RPM
  • OE-quality components with upgraded technology

Voltage12V

Amperage240A

Mount Leg ID50mm

Center-to-Center Mounts185mm

Hole ID TopM10

Hole ID Bottom10mm

Pulley Type6PV, Fixed

Pulley Grooves6

Pulley Diameter56mm

Regulator TypeInternal

SeriesHair Pin

Connections Plug #EP39

TerminalsB+

ExcitationExternal

GroundNegative

Pulley Diameter: 56mm

Mounting Leg ID: 50mm

Mount Center-to-Center: 185mm

Overall dimensions compatible with standard 2-inch GM/Holden mounts

Everything this install needs

0 of 0 in the box

Requires wiring upgrade before installation to accommodate the increased amperage.

Professional installation is recommended to ensure proper fitment and operation.

Suitable for GM, US, and Australian vehicles (with some modifications for Australian models). Designed for performance, heavy-duty, road transport, and 4x4 applications.

Q: Will this fit my vehicle?
A: Compatible with most GM, US, and Australian vehicles using a 2-inch standard mount. Australian models may need minor modifications.

Q: Is wiring upgrade necessary?
A: Yes, to safely handle the higher amperage output.

Q: Does it come with all parts needed?
A: It includes OE stator, rotor, regulator, rectifier, and clutch pulley.

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