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GM Denso Style 1-Wire Mini Race Alternator, 90 Amp, Black

$199.10

Product Highlights

In stock

SKU D5DC93DC Category Brand:
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High Output Performance – Produces up to 90 amps maximum output with 68 amps at turn-on around 1600 RPM, ideal for race and street applications, One Wire Simplicity – One-wire capable design with internal regulator allows for clean, straightforward installation, Compact Mini Design – Lightweight, space-saving alternator fits easily in tight engine compartments without sacrificing output, GM Denso Style Fitment – Features 6.15″ mount center-to-center spacing with included V-belt pulley for versatile applications, Complete Ready-to-Run Unit – Includes internal regulator and pulley, delivering reliable 12-volt charging in a durable all-black finish

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GM Denso Style 1-Wire Mini Race All Black Alternator, 90 Amp
Sku # 2891004-BLK
Mfr. Part # 2891004-BLK
Condition
New

Brand
Speedway Motors

Sold
Each

Details

Speedway Motors mini alternators are a great addition to your engine, whether it’s for the great look or the reliable high-amperage output. This alternator produces max 90 amps at max rpm (68 amps at turn on 1600 RPM), which will generally meet the demand of a hot rod or race application. Its compact and lightweight design allows for installation in the tightest spaces.

Specifications:

  • Alternator Style: Nippondenso
  • 6.15″ mount center to center
  • Maximum Amperage Output: 90 Amps (68 amps @ turn on 1600 RPM)
  • Voltage Compatibility: 12 Volts
  • One-Wire Capable: Yes
  • Regulator Style: Internal
  • Regulator Included: Yes
  • Pulley Included: Yes
  • Pulley Style: V-belt
  • Finish: Choose Satin or Black

 

Specs
One Wire Alternator
Yes

Alternator Case Style
Nippondenso

Alternator Amperage
90 amp

Voltage Required
12-Volt

Regulator
Internal

Alternator Finish
Powder Coated

Regulator Included
Yes

Color
Black

Sold in Quantity
Each

MFG. Part #
2891004-BLK

Notes
PULLEY NUT THREADS M14-1.5

Pulley Style
V-belt

Belt Type
V-Belt

Reviews

Perfect to replace Hitachi external regulator on Courier

Rated

by Greg on June 02, 2026

Summary: Perfect size to convert to a one wire alternator on a 1973 Ford Courier

Yes, I recommend this product.

I would buy it again

Rated

by Dragster on April 30, 2026

Summary: Dragracing

Yes, I recommend this product.

just what I needed.

Rated

by jfb05177 on January 04, 2026

Summary: thanks for the assistance in placing order. arrived when promised. installed and working

Yes, I recommend this product.

I recommend this to any hot rod builder

Rated

by 34 Plymouth on November 13, 2025

Summary: Put this on my 34 Plymouth hot rod it works great easy to install

Yes, I recommend this product.

I would buy again

Rated

by Dirtfun3 on May 06, 2025

Summary: Install was easy

Yes, I recommend this product.

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GM Denso Style 1-Wire Mini Race Alternator Kit, 90A, Low Mount

Tech Support
We’re here to help before and after your purchase. If you have a question or need assistance with one of our products, please contact us through eBay Messaging and a knowledgeable Speedway Motors team member will be happy to help.

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.

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