The Story
This 220 A AD-244 alternator is built for GM LS applications that need reliable charging capacity with a clean chrome finish. It provides the electrical output needed to support upgraded ignition systems, electric cooling fans, fuel pumps, lighting, and additional accessories.
High Output Charging Performance
With a 220 A output rating, this alternator delivers the charging capacity needed for vehicles running added electrical demand. Strong output helps maintain consistent system voltage in street, cruise, and stop-and-go driving conditions.
Consistent Voltage & Electrical Stability
The internal charging design helps reduce voltage drop that can affect ignition performance, fuel delivery, lighting, and sensitive electronic components under load.
Durable Internal Construction
Built with quality internal components, this alternator is designed to handle heat, vibration, and sustained electrical demand commonly found in street and performance applications.
Serpentine Pulley Configuration
Equipped with a serpentine pulley setup, this unit should be matched to the belt system and mounting layout listed in the specifications.
Direct-Fit Installation
The AD-244 case and split mount support a straightforward installation when paired with the correct brackets, wiring, and pulley alignment.
Fitment
COMPATIBLE WITH
GM LS TRUCK ACCESSORY DRIVE SYSTEMS
NOTES:
GM AD244 style alternator commonly used on 1999–2006 GM LS truck applications.
Fits vehicles equipped with factory-style AD244 alternator brackets and 4-pin connectors.
Not all LS engines use this alternator — compatibility depends on accessory drive spacing (truck vs. car) and bracket configuration.
Designed for use with LS truck spacing or compatible aftermarket brackets.
Fitment must be verified based on bracket type, mounting points, electrical connector, and pulley alignment.
Specifications:
AC Service Tap: No
Amperage Rating: 220 A
Brushless: No
Case Circumference: 17.900 in.
Case Color: Silver
Case Material: Aluminum
Distance Between Mounting Feet: 4.100 in.
External Fan Included: Yes
External Regulator Included: No
Family: AD-244
Fan Type: External
Finish: Chrome
Ground Type: Case ground
Mounting Type: Split Mount
One Wire Capable: No
Outside Pulley Diameter: 2.500 in.
Plug Clock Rear View Main Mounting Ear at 6 O Clock: 10 o'clock
Plug Type: 4-pin
Pulley Belt Type: Serpentine
Pulley Groove Quantity: 6
Pulley Included: Yes
Regulator Type: Internal
Rotation Direction: Clockwise
Split Mounting Foot Overall Inner Spacing: 4.100
Split Mounting Foot Overall Outside Spacing: 5.100
Terminal Quantity: 5
Voltage: 12 VDC
Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.
Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.
Description
This 220 A AD-244 alternator is built for GM LS applications that need reliable charging capacity with a clean chrome finish. It provides the electrical output needed to support upgraded ignition systems, electric cooling fans, fuel pumps, lighting, and additional accessories.
High Output Charging Performance
With a 220 A output rating, this alternator delivers the charging capacity needed for vehicles running added electrical demand. Strong output helps maintain consistent system voltage in street, cruise, and stop-and-go driving conditions.
Consistent Voltage & Electrical Stability
The internal charging design helps reduce voltage drop that can affect ignition performance, fuel delivery, lighting, and sensitive electronic components under load.
Durable Internal Construction
Built with quality internal components, this alternator is designed to handle heat, vibration, and sustained electrical demand commonly found in street and performance applications.
Serpentine Pulley Configuration
Equipped with a serpentine pulley setup, this unit should be matched to the belt system and mounting layout listed in the specifications.
Direct-Fit Installation
The AD-244 case and split mount support a straightforward installation when paired with the correct brackets, wiring, and pulley alignment.
Fitment
COMPATIBLE WITH
GM LS TRUCK ACCESSORY DRIVE SYSTEMS
NOTES:
GM AD244 style alternator commonly used on 1999–2006 GM LS truck applications.
Fits vehicles equipped with factory-style AD244 alternator brackets and 4-pin connectors.
Not all LS engines use this alternator — compatibility depends on accessory drive spacing (truck vs. car) and bracket configuration.
Designed for use with LS truck spacing or compatible aftermarket brackets.
Fitment must be verified based on bracket type, mounting points, electrical connector, and pulley alignment.
Specifications:
AC Service Tap: No
Amperage Rating: 220 A
Brushless: No
Case Circumference: 17.900 in.
Case Color: Silver
Case Material: Aluminum
Distance Between Mounting Feet: 4.100 in.
External Fan Included: Yes
External Regulator Included: No
Family: AD-244
Fan Type: External
Finish: Chrome
Ground Type: Case ground
Mounting Type: Split Mount
One Wire Capable: No
Outside Pulley Diameter: 2.500 in.
Plug Clock Rear View Main Mounting Ear at 6 O Clock: 10 o'clock
Plug Type: 4-pin
Pulley Belt Type: Serpentine
Pulley Groove Quantity: 6
Pulley Included: Yes
Regulator Type: Internal
Rotation Direction: Clockwise
Split Mounting Foot Overall Inner Spacing: 4.100
Split Mounting Foot Overall Outside Spacing: 5.100
Terminal Quantity: 5
Voltage: 12 VDC
