MPA Electrical
Remanufactured

MPA Electrical 8290603 Alternator

Brand MPA Electrical 8290603
Amps 150 Amps
Clock 4:00
Fan Internal
Manufacturer Delco
Pulley 6 Groove Serpentine
Regulator Internal
Rotation Clockwise
Volts 12 Volts
Product line Remanufactured
Fits Buick, Chevrolet, GMC, Isuzu, Saab, and Oldsmobile · 34 vehicles

Remanufactured unit. A remanufactured alternator built for dependable charging performance.

150-amp output. Delivers strong electrical capacity for demanding systems.

Internal regulator. Integrated regulation helps simplify the charging system.

Cross-references AP Exhaust 8290, BBB Industries 8497 and 10464468 for the same application. See all 15.

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Remanufactured Alternator for GM SUV Applications

MPA Electrical part number 8290603 is a remanufactured 12-volt alternator built for charging-system service on select GM SUVs and related platforms. It delivers 150 amps with an internal regulator, internal fan, clockwise rotation, and a 6-groove serpentine pulley for direct replacement use.

This remanufactured alternator is a Delco-style unit for vehicles such as the Chevrolet Trailblazer, GMC Envoy, and Buick Rainier. It is also listed for the Chevrolet Trailblazer EXT, GMC Envoy XL, GMC Envoy XUV, Isuzu Ascender, Saab 9-7x, and Oldsmobile Bravada.

Key Features

  • MPA Electrical remanufactured alternator, part number 8290603
  • 150 amp output for 12-volt charging systems
  • Internal voltage regulator and internal fan
  • 6-groove serpentine pulley
  • Clockwise rotation with 4:00 clock position
  • Delco manufacturer style for listed applications

Detailed Product Overview

Part number 8290603 is a remanufactured alternator engineered around the specifications commonly used on GM truck-based SUVs. The 150 amp rating supports the electrical demand of factory charging systems, while the internal regulator helps maintain stable output without an external regulator. The internal fan and clockwise rotation match the listed OE-style configuration, and the 6-groove serpentine pulley supports belt-driven installation on the specified vehicles.

Compatible With 2002-2006 Chevrolet Trailblazer, N/A; 2002-2006 GMC Envoy, N/A; and 2004-2006 Buick Rainier, N/A. It also cross-references BBB Industries 8497 for the same application.

Common Issues This Part Can Address

  • Low battery charging caused by a worn alternator
  • Battery warning light related to charging-system output
  • Dim lights or electrical instability at idle
  • Noise or bearing wear from an aging alternator assembly
  • Charging failure on GM SUV applications using this Delco-style setup

Installation Notes and Tips

Verify pulley groove count, rotation, clock position, and connector style before installation. Confirm the vehicle’s charging-system layout matches the listed 12-volt, internal-regulator configuration. For best results, inspect the belt, tensioner, battery condition, and charging cables during replacement so the new alternator can operate within normal system load.

Quality Assurance

MPA Electrical supplies this unit as a remanufactured alternator built to match the listed application specifications. Fitment is confirmed for 2002-2006 Chevrolet Trailblazer, 2002-2006 GMC Envoy, 2004-2006 Buick Rainier, 2002-2006 Chevrolet Trailblazer EXT, 2002-2006 GMC Envoy XL, 2003-2006 Isuzu Ascender, 2005-2006 Saab 9-7x, 2004-2005 GMC Envoy XUV, and 2002-2004 Oldsmobile Bravada.

This part fits 34 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2006BuickRainier4.2LL6N/ARemanufactured
2006ChevroletTrailblazer4.2LL6N/ARemanufactured
2006ChevroletTrailblazer EXT4.2LL6N/ARemanufactured
2006GMCEnvoy4.2LL6N/ARemanufactured
2006GMCEnvoy XL4.2LL6N/ARemanufactured
2006IsuzuAscender4.2LL6N/ARemanufactured
2006Saab9-7x4.2LL6N/ARemanufactured
2005BuickRainier4.2LL6N/ARemanufactured
2005ChevroletTrailblazer4.2LL6N/ARemanufactured
2005ChevroletTrailblazer EXT4.2LL6N/ARemanufactured
2005GMCEnvoy4.2LL6N/ARemanufactured
2005GMCEnvoy XL4.2LL6N/ARemanufactured
2005GMCEnvoy XUV4.2LL6N/ARemanufactured
2005IsuzuAscender4.2LL6N/ARemanufactured
2005Saab9-7x4.2LL6N/ARemanufactured
2004BuickRainier4.2LL6N/ARemanufactured
2004ChevroletTrailblazer4.2LL6N/ARemanufactured
2004ChevroletTrailblazer EXT4.2LL6N/ARemanufactured
2004GMCEnvoy4.2LL6N/ARemanufactured
2004GMCEnvoy XL4.2LL6N/ARemanufactured
2004GMCEnvoy XUV4.2LL6N/ARemanufactured
2004IsuzuAscender4.2LL6N/ARemanufactured
2004OldsmobileBravada4.2LL6N/ARemanufactured
2003ChevroletTrailblazer4.2LL6N/ARemanufactured
2003ChevroletTrailblazer EXT4.2LL6N/ARemanufactured
2003GMCEnvoy4.2LL6N/ARemanufactured
2003GMCEnvoy XL4.2LL6N/ARemanufactured
2003IsuzuAscender4.2LL6N/ARemanufactured
2003OldsmobileBravada4.2LL6N/ARemanufactured
2002ChevroletTrailblazer4.2LL6N/ARemanufactured
2002ChevroletTrailblazer EXT4.2LL6N/ARemanufactured
2002GMCEnvoy4.2LL6N/ARemanufactured
2002GMCEnvoy XL4.2LL6N/ARemanufactured
2002OldsmobileBravada4.2LL6N/ARemanufactured
Directly replaces or cross-references 15 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
AP Exhaust — 8290BBB Industries — 84971046446815062413151628391520011019118694191360851915192019244750888642848104644680815200110081911869408192447500