Remy
Premium Remanufactured

Remy 12737 Alternator

Brand Remy 12737
Amperage Rating 130
Fan Type Internal
New or Remanufactured Remanufactured
OE Manufacturer Nippondenso
Pulley Included Yes
Rotation Direction Clockwise
Voltage (V) 12
Voltage Regulator Type Internal
Product line Premium Remanufactured
Fits Lexus · 5 vehicles

Premium remanufactured. Restored for dependable charging performance.

OE manufacturer pedigree. Built to Nippondenso specifications.

Internal regulator. Simplifies charging system integration.

Cross-references 27060-50340 and 104210-4000 for the same application. See all 2.

$214.02Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
Free return shipping if it doesn't fit when you check fitment here first.
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
Step 2 — Quantity
Order total $214.02
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

Remanufactured Alternator for Lexus V8 Charging Systems

The Remy Premium Remanufactured 12737 alternator is a 12-volt, 130-amp charging unit built for select Lexus applications with Nippondenso OE architecture. It uses an internal fan, internal voltage regulator, clockwise rotation, and includes the pulley for a direct replacement approach.

Compatible With 2006-2007 Lexus GS430 and 2004-2006 Lexus LS430, this alternator is built for vehicle-specific fitment. If you are replacing a failing Lexus GS430 alternator or a Lexus LS430 charging unit, verify application details before purchase.

Key Features

  • Remy Premium Remanufactured alternator
  • Part number: 12737
  • 130 amp output for 12-volt systems
  • Internal fan and internal voltage regulator
  • Clockwise rotation
  • Pulley included
  • OE manufacturer reference: Nippondenso
  • Cross-reference part numbers: 27060-50340, 104210-4000

Product Details

Remy Premium Remanufactured focuses on remanufactured electrical components built to match the original unit’s application requirements. This alternator is specified for Lexus GS430 and Lexus LS430 models that use a Nippondenso-style charging system, making it a practical replacement for restoring proper battery charging and electrical system performance. The 12737 alternator is a direct-fit style replacement for the listed vehicles and should be matched to the original part number and vehicle configuration.

This part cross-references Nippondenso-style OE numbers 27060-50340 and 104210-4000 for the same application.

What It Helps Solve

  • Battery warning light caused by low charging output
  • Dim lights or unstable electrical performance
  • Battery drain from a failing alternator
  • Charging system noise or inconsistent voltage output
  • Starting issues related to insufficient alternator output

Installation Notes and Tips

Confirm the original alternator part number, pulley style, rotation direction, and electrical connector layout before installation. Because this unit is vehicle-specific, compare the existing alternator to the replacement and verify fitment for your Lexus GS430 or Lexus LS430 application. After installation, check charging voltage at the battery and inspect belt condition and tension.

Quality Assurance

Remy Premium Remanufactured parts are remanufactured electrical components built for replacement use in the listed applications. Verify compatibility before buying to ensure the correct fit for your vehicle.

This part fits 5 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2007LexusGS4304.3LV8N/A130 Amp alternator - Vehicle specific fitment; verify compatibility before buying.; Premium Remanufactured
2006LexusGS4304.3LV8N/A130 Amp alternator - Vehicle specific fitment; verify compatibility before buying.; Premium Remanufactured
2006LexusLS4304.3LV8N/A130 Amp alternator - Vehicle specific fitment; verify compatibility before buying.; Premium Remanufactured
2005LexusLS4304.3LV8N/A130 Amp alternator - Vehicle specific fitment; verify compatibility before buying.; Premium Remanufactured
2004LexusLS4304.3LV8N/A130 Amp alternator - Vehicle specific fitment; verify compatibility before buying.; Premium Remanufactured
Directly replaces or cross-references 2 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
27060-50340104210-4000