BBB Industries
NEW ALTERNATOR

BBB Industries N13275 Alternator

Brand BBB Industries N13275
AC Tap No
Amperage Rating 70
Brushless Design No
Cooling Method Air
Decoupled Or Clutch Pulley No
Fan Type Internal
Number Of Pulley Grooves 5
OE Manufacturer Hitachi
One Wire Capable No
Outside Pulley Diameter (in) 2-5/16
Outside Pulley Diameter (mm) 59
Plug Clock Position 10
Polarity Negative
Pulley Belt Type Serpentine
Pulley Included Yes
Pulley Type Conventional
Rotation Direction Clockwise
Voltage (V) 12
Voltage Regulator Type Internal
Product line NEW ALTERNATOR
Fits Subaru · 5 vehicles

OE direct replacement. Built to match the original alternator design for straightforward installation.

Internal voltage regulator. Helps maintain steady charging performance with fewer external components.

Pulley included. Ready for a complete alternator replacement right out of the box.

Cross-references 23700-AA090, LR170-732B and LR170-732C for the same application. See all 3.

$227.74Free shipping
In stock · usually ships same day before 1pm CST
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Order total $227.74
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Free returns within 60 days if it doesn't fit when fitment is verified.

BBB Industries N13275 Alternator for Subaru Legacy

BBB Industries NEW ALTERNATOR N13275 is a 12-volt, 70-amp replacement alternator built for 1990-1994 Subaru Legacy applications with a Hitachi OE design. It uses an internal voltage regulator, clockwise rotation, and a serpentine pulley setup to match the original charging system layout.

Key Features

  • 70 amp output for factory-style charging performance
  • 12V alternator with internal voltage regulator
  • OE manufacturer reference: Hitachi
  • Internal fan with air cooling
  • Serpentine belt pulley included, 5-groove conventional pulley
  • Negative polarity and clockwise rotation
  • Plug clock position: 10
  • Cross-reference part numbers include 23700-AA090 and LR170-732B

Product Details

This BBB Industries alternator, part number N13275, is built for Subaru Legacy charging-system service where a direct-fit Hitachi-style replacement is required. It features a 2-5/16 inch (59 mm) outside pulley diameter, internal cooling fan, and a conventional pulley design to align with the original serpentine belt drive. For Subaru Legacy owners searching for a 1990-1994 Subaru Legacy alternator or a 70 amp Hitachi alternator replacement, N13275 provides the core electrical and mounting specifications needed for a proper match.

Fits 1990-1994 Subaru Legacy, N/A.

Common Problems This Part Can Address

  • Battery warning light caused by alternator output loss
  • Low charging voltage at idle or under electrical load
  • Dim headlights and weak accessory performance
  • Battery drain from an alternator that no longer maintains system voltage
  • Charging-system noise or inconsistent operation from a worn OE unit

Installation Notes and Tips

Verify pulley groove count, plug clock position, rotation direction, and OE reference before installation. Confirm the vehicle uses the listed Hitachi-style application and inspect the serpentine belt condition, wiring connector, and battery terminals during replacement. This part number is N13275.

Quality Assurance

BBB Industries NEW ALTERNATOR line focuses on replacement electrical components built to match OE-style fitment and operating specifications for service applications.

This part fits 5 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
1994SubaruLegacy2.2LH4N/A70 Amp Hitachi Alternator; NEW ALTERNATOR
1993SubaruLegacy2.2LH4N/A70 Amp Hitachi Alternator; NEW ALTERNATOR
1992SubaruLegacy2.2LH4N/A70 Amp Hitachi Alternator; NEW ALTERNATOR
1991SubaruLegacy2.2LH4N/A70 Amp Hitachi Alternator; NEW ALTERNATOR
1990SubaruLegacy2.2LH4N/A70 Amp Hitachi Alternator; NEW ALTERNATOR
Directly replaces or cross-references 3 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
23700-AA090LR170-732BLR170-732C