Part #: 8290603N

MPA Electrical 8290603N Alternator

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⚙️ 34 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
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🚗Fitment: Buick, Chevrolet, GMC, Isuzu, Saab, and Oldsmobile, Rainier, Trailblazer, Trailblazer EXT, Envoy, Envoy XL, Ascender, 9-7x, Envoy XUV, and Bravada
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Reliable 150 Amp Alternator for Buick, Chevrolet, GMC, and More

The MPA Electrical New alternator, part number 8290603N, is designed to provide consistent 12-volt electrical power for a range of vehicles including Buick, Chevrolet, GMC, Isuzu, Oldsmobile, and Saab models. Engineered with an internal fan and regulator, this alternator supports efficient charging and reliable starting performance.

  • 150 amps output for stable electrical supply
  • 12 volts system compatibility
  • Internal fan for effective cooling
  • Internal voltage regulator for consistent performance
  • 6 groove serpentine pulley design
  • Clockwise rotation at 4:00 clock position
  • Delco manufacturer components for durability

Detailed Alternator Features and Specifications

This MPA Electrical New alternator (part number 8290603N) delivers 150 amps of power, suitable for vehicles requiring a robust charging system. It operates on a 12-volt electrical system and features an internal fan that helps maintain optimal operating temperatures during extended use. The internal voltage regulator ensures steady voltage output, protecting your vehicle’s electrical components. The 6 groove serpentine pulley is designed for compatibility with modern belt systems, while the clockwise rotation and 4:00 clock position facilitate proper fitment in specified engine bays.

Compatible Vehicles and Applications

This alternator is compatible with several GM and related makes, including Buick, Chevrolet, GMC, Isuzu, Oldsmobile, and Saab. It fits models such as the Saab 9-7x, Isuzu Ascender, GMC Bravada, GMC Envoy (including Envoy XL and Envoy XUV), GMC Rainier, and Chevrolet Trailblazer (including Trailblazer EXT). This part number 8290603N is ideal for replacing worn or failing alternators in these vehicles to restore reliable charging and electrical system performance.

  • Restores charging system functionality in Buick, Chevrolet, GMC, and related models
  • Resolves dimming or flickering headlights
  • Fixes battery warning light issues
  • Eliminates battery drain and starting problems
  • Prevents electrical system failures due to alternator malfunction

Installation Notes and Tips

When installing the MPA Electrical New alternator 8290603N, ensure the serpentine belt is properly aligned with the 6 groove pulley. Verify the clockwise rotation and 4:00 clock position match the vehicle’s original alternator orientation. It is recommended to disconnect the battery before installation to avoid electrical shorts. Check all electrical connections and mounting points for secure fitment to maintain optimal performance.

Quality Assurance and Warranty

MPA Electrical’s New product line includes alternators built with quality components from Delco, ensuring durability and reliable operation. This alternator undergoes rigorous testing to meet OEM standards. While specific warranty details are not provided here, MPA Electrical products typically come with manufacturer-backed warranties to protect against defects and ensure customer confidence.

BrandMPA Electrical
Part Number8290603N
PositionNew
Amps150 Amps
Clock4:00
FanInternal
ManufacturerDelco
Pulley6 Groove Serpentine
RegulatorInternal
RotationClockwise
Volts12 Volts

This part fits 34 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2006BuickRainier4.2LL6N/ANew
2006ChevroletTrailblazer4.2LL6N/ANew
2006ChevroletTrailblazer EXT4.2LL6N/ANew
2006GMCEnvoy4.2LL6N/ANew
2006GMCEnvoy XL4.2LL6N/ANew
2006IsuzuAscender4.2LL6N/ANew
2006Saab9-7x4.2LL6N/ANew
2005BuickRainier4.2LL6N/ANew
2005ChevroletTrailblazer4.2LL6N/ANew
2005ChevroletTrailblazer EXT4.2LL6N/ANew
2005GMCEnvoy4.2LL6N/ANew
2005GMCEnvoy XL4.2LL6N/ANew
2005GMCEnvoy XUV4.2LL6N/ANew
2005IsuzuAscender4.2LL6N/ANew
2005Saab9-7x4.2LL6N/ANew
2004BuickRainier4.2LL6N/ANew
2004ChevroletTrailblazer4.2LL6N/ANew
2004ChevroletTrailblazer EXT4.2LL6N/ANew
2004GMCEnvoy4.2LL6N/ANew
2004GMCEnvoy XL4.2LL6N/ANew
2004GMCEnvoy XUV4.2LL6N/ANew
2004IsuzuAscender4.2LL6N/ANew
2004OldsmobileBravada4.2LL6N/ANew
2003ChevroletTrailblazer4.2LL6N/ANew
2003ChevroletTrailblazer EXT4.2LL6N/ANew
2003GMCEnvoy4.2LL6N/ANew
2003GMCEnvoy XL4.2LL6N/ANew
2003IsuzuAscender4.2LL6N/ANew
2003OldsmobileBravada4.2LL6N/ANew
2002ChevroletTrailblazer4.2LL6N/ANew
2002ChevroletTrailblazer EXT4.2LL6N/ANew
2002GMCEnvoy4.2LL6N/ANew
2002GMCEnvoy XL4.2LL6N/ANew
2002OldsmobileBravada4.2LL6N/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:

1046446815062413151628391520011019118694191360851915192019244750810464468081520011008191186940829088864284

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