Part #: 13791N

MPA Electrical 13791N Alternator

New
⚙️ 13 vehicles fit this part
🔍
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$234.98Free Shipping
🚚Free ShippingNo Cost to Continental U.S.
🔄Free Returns*Wrong fit? No cost
🛡️60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
🔥
✅ In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
📦New
🚗Fitment: Lexus, GS300 and IS300
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Reliable Alternator for Lexus GS300 and IS300

The MPA Electrical New 13791N alternator is designed to provide consistent 12-volt electrical output for Lexus GS300 and IS300 models. Engineered with quality components, this 100-amp alternator ensures your vehicle's charging system operates efficiently under various driving conditions.

  • 100 amps output for stable electrical performance
  • 12 volts system compatibility
  • Internal fan for effective cooling
  • 6 groove serpentine pulley design
  • Internal voltage regulator for precise control
  • Clockwise rotation suitable for specific Lexus models
  • Manufactured by Nippondenso for reliable quality

Detailed Alternator Features and Specifications

This MPA Electrical New alternator, part number 13791N, is built with an internal fan that helps maintain optimal operating temperatures, reducing the risk of overheating during extended use. The 6 groove serpentine pulley ensures compatibility with the Lexus GS300 and IS300 belt systems, providing smooth power transfer. Featuring an internal voltage regulator, this alternator maintains consistent voltage output, protecting your vehicle's electrical components. The clockwise rotation matches the original equipment specifications for these Lexus models, ensuring proper fit and function. Manufactured by Nippondenso, a recognized name in automotive electrical parts, this alternator meets the necessary standards for durability and performance.

MPA Electrical New Product Line Overview

The New product line from MPA Electrical focuses on delivering updated and reliable electrical components tailored for specific vehicle applications. This alternator, part of the New line, incorporates modern design elements such as an internal fan and regulator to enhance longevity and efficiency. Choosing a part from the New line ensures compatibility with current vehicle requirements and adherence to quality manufacturing processes.

Common Issues Addressed by This Alternator

  • Battery not charging properly in Lexus GS300 or IS300
  • Dim or flickering dashboard and headlights
  • Electrical system warning lights illuminated
  • Unusual noises from the alternator area
  • Vehicle stalling or difficulty starting due to charging failure

Installation Notes and Tips

When installing the MPA Electrical New 13791N alternator, ensure the serpentine belt is properly aligned with the 6 groove pulley. Verify the clockwise rotation matches the vehicle’s original alternator to avoid mechanical issues. It is recommended to inspect the battery and electrical connections for corrosion or damage before installation. Professional installation is advised to maintain electrical system integrity and safety.

Quality Assurance and Warranty Information

This alternator is manufactured by Nippondenso and distributed under the MPA Electrical New product line, reflecting adherence to industry standards. While specific warranty details are not provided here, MPA Electrical products typically come with a limited warranty covering defects in materials and workmanship. Consult the product documentation or supplier for exact warranty terms.

BrandMPA Electrical
Part Number13791N
PositionNew
Amps100 Amps
Clock12:00
FanInternal
ManufacturerNippondenso
Pulley6 Groove Serpentine
RegulatorInternal
RotationClockwise
Volts12 Volts

This part fits 13 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2005LexusGS3003.0LL6N/ANew
2005LexusIS3003.0LL6N/ANew
2004LexusGS3003.0LL6N/ANew
2004LexusIS3003.0LL6N/ANew
2003LexusGS3003.0LL6N/ANew
2003LexusIS3003.0LL6N/ANew
2002LexusGS3003.0LL6N/ANew
2002LexusIS3003.0LL6N/ANew
2001LexusGS3003.0LL6N/ANew
2001LexusIS3003.0LL6N/ANew
2000LexusGS3003.0LL6N/ANew
1999LexusGS3003.0LL6N/ANew
1998LexusGS3003.0LL6N/ANew

* 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:

101211-7800102211-0730137911913433227060-4622027060-4627027060-46300

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