High Output: This alternator produces a massive 220 amps, a significant upgrade from standard stock alternators, providing more power for your vehicle's electrical systems. Accessory Friendly: Ideal for vehicles with a lot of accessories and equipment, this alternator efficiently meets higher electrical demands. LS-Era Compatibility: Designed to fit most LS-era truck applications, this alternator is equipped to accept the OEM connection, perfect for many truck, van, and SUV models from 1999-2006. Important Fit Note: This GM AD244 style alternator features a 4-pin connector, therefore it is not compatible with 2-pin harnesses. Broad Engine Fit: Compatible with Compatible with Chevy Big Block Compatible with V8 Gen VII 8.1L/496ci, Compatible with Chevy Small Block Compatible with V8 Gen I 5.0L/305ci, 5.7L/350ci, Compatible with Chevrolet Small Block Compatible with V8 Gen III/IV (LS Based) 4.8L/294ci, 5.3L/325ci, 5.7L/346ci (commonly referred to as 350), 6.0L/364ci, Duramax Diesel Compatible with V8 6.6L/403ci, GM Diesel Compatible with V8 6.5L/395ci, and GM 90° V6 4.3L/262ci engines. Speedway Motors alternators are a great addition to your engine, whether it’s for the great look or the reliable high-amperage output. This alternator produces 220 amps, which is a huge jump above stock. It is perfect for vehicles with a lot of accessories and equipment. As this is the style used in most LS-era truck applications, it is equipped to take the OEM connection. Specifications: Alternator Style: AD244. Maximum Amperage Output: 220 Amps. Normal RPM and draw: average 180 amps. Voltage Compatibility: 12 Volts. One-Wire Capable: No. Regulator Style: Internal. Regulator Included: Yes. Pulley Included: Yes. Pulley Style: Serpentine. Finish: Black. Important: AD244 style alternator used in many truck, van, and SUV applications from 1999-2006. Alternator has a 4-pin connector and therefore will not fit 2-pin harness. Alternators differ by application; verify style needed before ordering. Fits: Compatible with Chevy Big Block Compatible with V8 Gen VII 8.1L / 496ci Compatible with Chevy Small Block Compatible with V8 Gen I 5.0L / 305ci 5.7L / 350ci Compatible with Chevrolet Small Block Compatible with V8 Gen III/IV (LS Based) 4.8L / 294ci 5.3L / 325ci 5.7L / 346ci, commonly referred to as 350 6.0L / 364ci DuCompatible with Ramax Diesel Compatible with V8 6.6L / 403ci GM Diesel Compatible with V8 6.5L / 395ci GM 90° V6 4.3L / 262ci