Part #: 12445

Remy 12445 Alternator

Premium Remanufactured
4 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
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In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
Premium Remanufactured
Fitment: Nissan, Frontier and Xterra
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Reliable Alternator for Nissan Frontier and Xterra

The Remy Premium Remanufactured Alternator 12445 is designed to restore your Nissan Frontier or Xterra's charging system with dependable performance. This 12-volt alternator features a 100-amp rating and includes an internal fan and voltage regulator for efficient operation.

Key Features of Remy Alternator 12445

  • Amperage Rating: 100 amps for consistent electrical output
  • Internal fan type for effective cooling
  • Remanufactured to meet OE standards
  • OE Manufacturer: Hitachi, ensuring compatibility and quality
  • Includes pulley for straightforward installation
  • Clockwise rotation direction
  • Internal voltage regulator for stable voltage control
  • 12-volt system compatibility

About the Premium Remanufactured Product Line

The Premium Remanufactured line by Remy offers alternators that have been carefully rebuilt to meet original equipment specifications. This ensures that the alternator 12445 delivers reliable performance and durability comparable to new units. The remanufacturing process includes thorough testing and replacement of worn components, making it a practical choice for Nissan Frontier and Xterra owners seeking quality replacement parts.

Detailed Product Description

This Remy alternator 12445 is specifically engineered for Nissan Frontier and Xterra models, providing a 100-amp output suitable for the vehicle's electrical demands. The internal fan design helps maintain optimal operating temperatures, while the internal voltage regulator ensures consistent voltage delivery to protect your vehicle's electrical system. The included pulley and clockwise rotation direction match the original equipment, simplifying installation and ensuring proper fitment.

Common Issues Addressed by This Alternator

  • Battery not charging or losing charge quickly
  • Dimming or flickering headlights and dashboard lights
  • Electrical system warning lights on the dashboard
  • Unusual noises from the engine bay related to the charging system
  • Vehicle stalling or difficulty starting due to insufficient electrical power

Installation Notes and Tips

  • Ensure compatibility with your Nissan Frontier or Xterra model year before installation
  • Disconnect the battery before removing the old alternator to prevent electrical shorts
  • Verify the clockwise rotation direction matches your vehicle’s requirements
  • Check the pulley alignment and belt tension after installation
  • Test the charging system after installation to confirm proper operation

Quality Assurance and Warranty

The Remy Premium Remanufactured alternator 12445 undergoes rigorous testing to meet or exceed original equipment standards. Manufactured with components from Hitachi, this alternator is built for durability and reliable performance. Warranty details are provided by Remy to ensure customer confidence in the product’s quality and longevity.

BrandRemy
Part Number12445
PositionPremium Remanufactured
Amperage Rating100
Fan TypeInternal
New or RemanufacturedRemanufactured
OE ManufacturerHitachi
Pulley IncludedYes
Rotation DirectionClockwise
Voltage (V)12
Voltage Regulator TypeInternal

This part fits 4 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2004NissanFrontier3.3LV6N/A100 Amps, fits various alternator models.; Premium Remanufactured
2004NissanXterra3.3LV6N/A100 Amps, fits various alternator models.; Premium Remanufactured
2003NissanFrontier3.3LV6N/A100 Amps, fits various alternator models.; Premium Remanufactured
2003NissanXterra3.3LV6N/A100 Amps, fits various alternator models.; Premium Remanufactured

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

23100-1Z600LR1100-736BLR1100-736C

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.