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Top Street Performance

Denso Style 90 Amp Mini Alternator with Serpentine Pulley - Black

Denso Style 90 Amp Mini Alternator with Serpentine Pulley - Black

SKU: SKU: ES1015BK

Regular price $224.84
Sale price $224.84 Regular price $255.50
Shipping calculated at checkout.

Out of stock

Top Street Performance (TSP) is committed to providing high-quality performance parts while complying with emissions regulations. This product is designed for use on vehicles that comply with federal emissions regulations. It is the customer’s responsibility to verify that this part is legal for use in their state or local jurisdiction. Check with your local emissions authority before purchasing.

Product Details

Features

  • Compact Denso-Style Design: Ideal for tight engine bays, engine swaps, and limited-clearance installations.
  • 90 Amp Charging Output: Supports electric fans, fuel pumps, ignition systems, and other accessories.
  • Serpentine Pulley Included: Designed for compatible serpentine belt drive systems.
  • One-Wire Capable Operation: Simplifies wiring for street rods, race cars, and custom builds.

Description

Maximize charging performance while saving valuable engine bay space with this Denso-Style 90 Amp Mini Race Alternator featuring a serpentine pulley. Designed for street rods, hot rods, race cars, drag cars, engine swaps, kit cars, and custom builds, this compact alternator delivers dependable charging performance in a lightweight, space-saving package.

The 90 amp output provides the charging capacity needed to support upgraded ignition systems, electric fuel pumps, electric cooling fans, auxiliary lighting, gauges, data logging systems, and other electrical accessories commonly found on performance vehicles. Increased charging capacity helps maintain stable system voltage while supporting modern electrical demands during street and competition use.

Built with a compact Denso-style housing, this mini alternator is engineered for applications where clearance is limited around headers, steering components, suspension systems, chassis tubing, and other engine bay obstacles. Its lightweight construction and reduced overall dimensions make it a popular choice for engine swaps, custom chassis builds, race vehicles, and performance applications where traditional alternators may not fit.

The included serpentine pulley is designed for use with compatible serpentine belt drive systems commonly found on modern engine combinations and custom accessory drive setups. The one-wire capable design simplifies wiring while the internal voltage regulator helps maintain consistent charging performance without requiring an external regulator.

Finished in black, this alternator combines show-quality appearance with dependable charging capability. Whether you're building a street rod, upgrading a hot rod, completing an LS swap, finishing a race car, or solving clearance issues in a custom engine bay, this Denso-style mini alternator delivers the compact packaging, charging performance, and reliability needed for dependable operation.

 

Compact Mini Alternator Design
The Denso-style housing is engineered for applications where space is limited around headers, steering components, suspension parts, chassis tubing, and other engine bay obstacles. Its compact footprint makes it a popular choice for street rods, hot rods, race cars, engine swaps, and custom vehicle builds.

90 Amp Charging Performance
The 90 amp output provides dependable charging capacity for upgraded ignition systems, electric fuel pumps, electric cooling fans, auxiliary lighting, gauges, and other electrical accessories commonly found on performance vehicles. Increased charging capacity helps maintain stable system voltage under varying electrical loads.

Specs

AC Service TapNo
Amperage Rating90 A
BrushlessNo
Case Circumference13.200 in.
Case ColorBlack
Case MaterialAluminum
Distance Between Mounting Feet6.150 in.
External Fan IncludedNo
External Regulator IncludedNo
FamilyDenso
Fan TypeInternal
FinishPowder-coated
Ground TypeCase ground
One Wire CapableYes
Outside Pulley Diameter2.610 in.
Pulley Belt Type0.375 in. V-belt
Pulley Groove Quantity1
Pulley IncludedYes
Regulator TypeInternal
Rotation DirectionClockwise
Terminal Quantity1
Voltage12 VDC

Engine Fitment

COMPATIBLE WITH:
Universal applications where alternator dimensions, mounting points, pulley alignment, belt routing, and wiring configuration are verified before installation.

COMMON VEHICLE APPLICATIONS:
Often used in custom installations requiring a compact alternator package, including:
• LS Engine Swaps
• Small Block Chevy Builds
• Big Block Chevy Builds
• Ford Windsor Builds
• Chrysler Small Block & Big Block Builds
• Custom Muscle Cars
• Classic Trucks
• Dune Buggies
• Sand Rails
• Off-Road Builds

NOTES:
• Universal fitment requires verification of:
• Mounting dimensions
• Mounting ear spacing
• Pulley alignment
• Belt routing
• Bracket compatibility
• Wiring configuration
• Engine bay clearance

Q&A

What is a Denso-style mini alternator?
A Denso-style mini alternator uses a compact housing design that helps save space in tight engine compartments while still providing reliable charging performance.

Will this alternator work for an engine swap?
Yes. The compact housing and one-wire capable design make it a popular choice for LS swaps, street rods, hot rods, race cars, and custom vehicle builds.

What accessories can a 90 amp alternator support?
The 90 amp output can support many common electrical accessories including electric fuel pumps, upgraded ignition systems, electric cooling fans, auxiliary lighting, gauges, and other performance vehicle electronics.

Does this alternator include a pulley?
Yes. This alternator includes a serpentine pulley designed for compatible serpentine belt drive systems.

Is this a one-wire alternator?
The alternator is one-wire capable, allowing simplified wiring in many custom and performance vehicle applications.

Why choose a mini alternator?
Mini alternators are commonly used when additional clearance is needed around headers, steering components, suspension systems, chassis tubing, or other tight engine bay areas.

Is this alternator commonly used for LS swaps?
Yes. The compact Denso-style housing and serpentine pulley configuration make it a popular choice for many LS swap and custom accessory drive applications.

Emissions Notice

This product does not affect vehicle emissions and is not subject to emissions compliance regulations.