MPA Electrical 8290603N Alternator

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

New unit. Freshly built alternator for dependable charging performance.

150 amps. Delivers strong electrical output for demanding systems.

Internal regulator. Simplifies charging control with an integrated design.

Cross-references AP Exhaust 8290, 10464468 and 15062413 for the same application. See all 13.

$175.39Free shipping
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Free returns within 60 days if it doesn't fit when fitment is verified.

150 Amp Alternator for GM SUV Applications

MPA Electrical part number 8290603N is a new 12-volt alternator built for GM SUV and crossover applications that need stable charging output. It delivers 150 amps with an internal regulator, internal fan, and a 6-groove serpentine pulley for direct-fit service on the listed vehicles.

This alternator is a Delco-style unit with clockwise rotation and a 4:00 clock position. It is a practical replacement for charging-system service on the Chevrolet Trailblazer, GMC Envoy, Buick Rainier, and related platforms.

Key Features

  • 150 amp output for 12-volt charging systems
  • Internal regulator for integrated voltage control
  • Internal fan for alternator cooling
  • 6-groove serpentine pulley
  • Clockwise rotation with 4:00 clock position
  • Delco manufacturer style
  • New MPA Electrical part number 8290603N

Detailed Description

MPA Electrical 8290603N is an alternator designed around the listed OE-style specifications, including 150 amps, internal regulation, and a serpentine belt pulley configuration. The Delco-style layout and 4:00 clock position help match the original charging-system setup on supported GM vehicles. This part number 8290603N is also referenced for applications that call for OE numbers such as 10464468 and 15062413.

Compatible With 2004-2006 Buick Rainier, 2002-2006 Chevrolet Trailblazer, 2002-2006 Chevrolet Trailblazer EXT, 2002-2006 GMC Envoy, 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 number 8290603N is a fitment-based replacement for these GM and related models when the charging system calls for the listed alternator configuration.

This part cross-references AP Exhaust 8290 for the same application.

Common Problems 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 with the listed fitment

Installation Notes and Tips

Verify pulley groove count, clock position, rotation, and electrical connector style before installation. Confirm the vehicle uses a 12-volt system and compare the original unit to MPA Electrical 8290603N to ensure the Delco-style alternator matches the existing mounting and belt alignment. After installation, check charging voltage and inspect belt condition, tension, and battery health.

Quality Assurance

MPA Electrical supplies a new alternator built to the stated specifications for direct replacement service. The product details provided here are based on the listed attributes and fitment data for accurate application matching.

This part fits 34 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
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
Directly replaces or cross-references 13 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
AP Exhaust — 8290104644681506241315162839152001101911869419136085191519201924475088864284810464468081520011008191186940