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 Chevy Big Block V8 Gen VII 8.1L/496ci, Chevy Small Block V8 Gen I 5.0L/305ci, 5.7L/350ci, Chevrolet Small Block V8 Gen III/IV (L
GM AD244 Black LS Alternator | High Output 220 Amp Speedway Motors
GM AD244 Black LS Alternator | High Output 220 Amp
Sku # 2891024
Mfr. Part # 2891024
Condition
New
Brand
Speedway Motors
Sold
Each
Details

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:

Chevy Big Block V8 Gen VII

8.1L / 496ci

Chevy Small Block V8 Gen I

5.0L / 305ci

5.7L / 350ci

Chevrolet Small Block 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 V8

6.6L / 403ci

GM Diesel V8

6.5L / 395ci

GM 90° V6

4.3L / 262ci

Specs
One Wire Alternator
No
Alternator Case Style
GM AD244
Alternator Amperage
220 amp
Voltage Required
12-Volt
Regulator
Internal
Alternator Finish
Black
Alternator Pulley Included
Yes
Color
Black
Sold in Quantity
Each
MFG. Part #
2891024
Pulley Style
V-belt
Belt Type
Serpentine
Reviews

Is working great so far !

Rated
Product Rating
by Gumby on December 29, 2025

Summary: I put this on my 84 GMC. The little 100 amp stock one just wasn't doin the job. Came across this one and it was great price and it's working just perfect.

Yes, I recommend this product.

Alternator

Rated
Product Rating
by Yup on October 16, 2025

Summary: Good product

Yes, I recommend this product.

Alternator black

Rated
Product Rating
by EP on October 16, 2025

Summary: i purchased this item which is similar to holleys premium alternator and half the price. Looks well built and the paint material of nice quality. Will test soon but looks awesome

Yes, I recommend this product.

Exact Part I Needed

Rated
Product Rating
by AD on September 15, 2025

Summary: I needed a higher demand alternator for my LS application and this delivered exactly what I needed to insure proper operation of all onboard electronics.

Yes, I recommend this product.

Awesome, alternator! Looks good on my LM7 swap.

Rated
Product Rating
by J Ax on September 14, 2025

Summary: Used this on a LM7 swap and my 87 El Camino. Along with the Holly plug that has a single yellow wire and resistor in it. I used it with my Aces jackpot EFI system, connected the yellow wire to a key on and it is working perfectly.

Yes, I recommend this product.

Related Items / Suggested Parts
Tech Support
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About
Speedway Motors is America’s Oldest Speed Shop® and has been a trusted source for specialty rodding and racing products and friendly expert advice for more than 74 years. Founded in 1952 by “Speedy” Bill Smith – a racer and street rodder himself – Speedway has grown from a one-man operation to become the world’s largest manufacturer, distributor and retailer of street rod and racing products. Our industry-leading fast delivery is the result of same-day shipping from our state-of-the-art, centrally located 500,000 sq. ft. headquarters. Speedway’s size offers customers unmatched product selection and low pricing, while our excellent technical support and customer service have made us a recognized leader in the rodding and racing industries.