Remy
Premium Remanufactured

Remy 12846 Alternator

Brand Remy 12846
Amperage Rating 150
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 Cadillac · 2 vehicles

Premium remanufactured. Restored to deliver dependable charging performance.

OE manufacturer pedigree. Built with Nippondenso heritage for a precise fit and function.

Internal regulator. Integrated voltage control simplifies the charging system.

Cross-references 104210-5390 and 10396863 for the same application. See all 2.

$247.60Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
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Step 2 — Quantity
Order total $247.60
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

Remanufactured Alternator for Cadillac CTS

Remy Premium Remanufactured alternator Part Number 12846 is a 12-volt, 150-amp charging unit built for 2008-2009 Cadillac CTS applications. It uses an internal fan, internal voltage regulator, clockwise rotation, and includes the pulley for a direct-fit replacement in the specified vehicle range.

Key Features

  • Remy Premium Remanufactured alternator for charging system service
  • 150 amp amperage rating for OE-style electrical output
  • 12V unit with internal voltage regulator
  • Internal fan design for integrated cooling
  • Clockwise rotation with pulley included
  • OE manufacturer reference: Nippondenso
  • Fits 2008-2009 Cadillac CTS, N/A

Product Details

Part Number 12846 is a remanufactured alternator from Remy’s Premium Remanufactured line, built for drivers who need a replacement charging component matched to the original vehicle configuration. This unit is specified for 2008-2009 Cadillac CTS models and is listed as compatible with multiple 150 amp alternator variants. The OE manufacturer reference is Nippondenso, which helps narrow the application for buyers searching for a Cadillac CTS alternator replacement or a 150 amp remanufactured alternator for the CTS.

This part cross-references 104210-5390 and 10396863 for the same application.

Common Problems This Part Can Address

  • Battery warning light caused by alternator output loss
  • Low charging voltage during driving or idle
  • Electrical system instability from a failing alternator
  • Charging issues after alternator bearing, diode, or regulator wear
  • Need for a direct replacement 150 amp alternator on a Cadillac CTS

Installation Notes and Tips

Verify the vehicle’s original alternator specifications before installation, including amperage rating, rotation direction, regulator type, and pulley configuration. Confirm fitment against the existing unit on 2008-2009 Cadillac CTS models, especially when replacing a 150 amp alternator variant. Inspect the charging system, battery condition, and belt drive components during service to help ensure proper operation after replacement.

Quality Assurance

Remy Premium Remanufactured parts are remanufactured to restore charging-system function for the listed application. This alternator is built as a remanufactured replacement unit for 2008-2009 Cadillac CTS vehicles with the specified configuration.

This part fits 2 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2009CadillacCTS3.6LV6N/ACompatible with multiple 150 Amp alternator variants.; Premium Remanufactured
2008CadillacCTS3.6LV6N/ACompatible with multiple 150 Amp alternator variants.; Premium Remanufactured
Directly replaces or cross-references 2 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
104210-539010396863