MPA Electrical 8550603 Alternator
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MPA Electrical
 Remanufactured

MPA Electrical 8550603 Alternator

Brand MPA Electrical 8550603
Amps 145 Amps
Clock 3:00
Fan Internal
Manufacturer Delco
Pulley 6 Groove Serpentine
Regulator Internal
Rotation Clockwise
Volts 12 Volts
Product line Remanufactured
Fits Chevrolet, Cadillac, GMC, and Hummer · 178 vehicles

Remanufactured unit. A remanufactured alternator for dependable charging performance.

145 amps. Provides strong electrical output for demanding systems.

Internal regulator. Built with an internal regulator for simpler installation.

Cross-references BBB Industries 8550, 8400207 and 20881337 for the same application. See all 4.

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Remanufactured 145 Amp Alternator for GM Applications

The MPA Electrical 8550603 is a remanufactured 12-volt alternator built for GM trucks, SUVs, and vans that use a 145 amp Delco-style charging system. It features an internal regulator, internal fan, clockwise rotation, and a 6-groove serpentine pulley for direct replacement in the listed applications.

Key Features

  • 145 amp output for vehicles equipped with the correct charging system
  • 12-volt alternator with internal regulator
  • Internal fan design for charging system cooling
  • 6-groove serpentine pulley
  • Clockwise rotation and 3:00 clock position
  • Remanufactured Delco unit from MPA Electrical
  • Part number 8550603 for easy identification

Detailed Description

MPA Electrical 8550603 is a remanufactured alternator intended for a range of Chevrolet, GMC, Cadillac, and Hummer vehicles that specify a 145 amp alternator. This unit is listed for applications such as Chevrolet Silverado 1500, Chevrolet Tahoe, GMC Sierra 1500, GMC Yukon, Cadillac Escalade, and related GM platforms. This part cross-references BBB Industries 8550 for the same application. The part number 8550603 also appears in interchange listings with 8400207, 20881337, and 25968616.

What It Helps Solve

  • Battery warning lights caused by alternator output loss
  • Low charging voltage during driving or idling
  • Dim headlights and electrical accessory performance issues
  • Charging system failure on GM vehicles with a 145 amp alternator
  • Replacement needs for worn or failed Delco-style alternators

Installation Notes and Fitment

Verify pulley type, rotation, clock position, and amperage before installation. Fits 2014 Cadillac Escalade, N/A. Fits 2011-2014 Cadillac Escalade ESV, N/A. Fits 2011-2014 Chevrolet Cheyenne, N/A. Fits 2010-2014 Chevrolet Express 1500, N/A. Fits 2011-2014 Chevrolet Silverado 1500, N/A. Fits 2014 Chevrolet Silverado 2500, N/A. Fits 2008-2011 Chevrolet Silverado 2500, N/A. Fits 2014 Chevrolet Silverado 2500 HD, N/A. Fits 2014 Chevrolet Silverado 3500 HD, N/A. Fits 2011-2014 Chevrolet Suburban 1500, N/A. Fits 2011-2014 Chevrolet Tahoe, N/A. Fits 2013-2014 GMC Savana 1500, N/A. Fits 2010-2011 GMC Savana 1500, N/A. Fits 2011-2014 GMC Sierra, N/A. Fits 2014 GMC Sierra 2500 HD, N/A. Fits 2014 GMC Sierra 3500 HD, N/A. Fits 2011-2014 GMC Yukon, N/A. Fits 2014 GMC Yukon XL 1500, N/A. Fits 2011-2013 Cadillac Escalade, N/A. Fits 2010-2013 Cadillac Escalade EXT, N/A. Fits 2011-2013 Chevrolet Avalanche, N/A. Fits 2012-2013 Chevrolet Silverado 1500, N/A. Fits 2012-2013 Chevrolet Silverado 2500, N/A. Fits 2013 Chevrolet Silverado 2500 HD, N/A. Fits 2008-2013 Chevrolet Silverado 3500, N/A. Fits 2013 Chevrolet Silverado 3500 HD, N/A. Fits 2007-2013 Chevrolet Suburban 1500, N/A. Fits 2013 Chevrolet Suburban 2500, N/A. Fits 2011-2013 GMC Sierra 1500, N/A. Fits 2013 GMC Sierra 2500 HD, N/A. Fits 2013 GMC Sierra 3500 HD, N/A. Fits 2012-2013 GMC Yukon, N/A. Fits 2011-2013 GMC Yukon XL 1500, N/A. Fits 2012-2013 GMC Yukon XL 2500, N/A. Fits 2011-2012 Chevrolet Colorado, N/A. Fits 2011-2012 Chevrolet Suburban 2500, N/A. Fits 2011-2012 GMC Canyon, N/A. Fits 2012 GMC Savana 1500, N/A. Fits 2011 Chevrolet Silverado 1500, N/A. Fits 2011 GMC Sierra 1500, N/A. Fits 2011 GMC Yukon XL 2500, N/A. Fits 2007-2010 Chevrolet Cheyenne, N/A. Fits 2010 Chevrolet Silverado 1500, N/A. Fits 2009-2010 GMC Yukon, N/A. Fits 2010 GMC Yukon XL 1500, N/A. Fits 2010 GMC Yukon XL 2500, N/A. Fits 2010 Hummer H3, N/A. Fits 2010 Hummer H3T, N/A. Fits 2009 Chevrolet Express 1500, N/A. Fits 2009 GMC Yukon XL 1500, N/A. Fits 2009 GMC Yukon XL 2500, N/A.

Quality Assurance

This remanufactured alternator is built to match the listed Delco-style specifications, including 145 amp output, internal regulation, and the correct pulley and rotation details for the supported GM applications.

Related reading

This part fits 178 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2014CadillacEscalade6.2LV8N/ACompatible with vehicles equipped with a 145 amp alternator.; Remanufactured
2014CadillacEscalade ESV6.2LV8N/ACompatible with vehicles equipped with a 145 amp alternator.; Remanufactured
2014ChevroletCheyenne6.2LV8N/ACompatible with vehicles equipped with a 145 amp alternator.; Remanufactured
2014ChevroletCheyenne5.3LV8N/ACompatible with vehicles equipped with a 145 amp alternator.; Remanufactured
2014ChevroletExpress 15005.3LV8N/ACompatible with vehicles equipped with a 145 amp alternator.; Remanufactured
2014ChevroletExpress 15004.3LV6N/ARemanufactured
2014ChevroletSilverado 15004.3LV6N/ACompatible with vehicles equipped with a 145 amp alternator.; Remanufactured
2014ChevroletSilverado 25005.3LV8N/ARemanufactured
2014ChevroletSilverado 2500 HD6.6LV8N/ACompatible with vehicles equipped with a 145 amp alternator.; Remanufactured
2014ChevroletSilverado 2500 HD6.0LV8N/ACompatible with vehicles equipped with a 145 amp alternator.; Remanufactured
2014ChevroletSilverado 3500 HD6.0LV8N/ACompatible with vehicles equipped with a 145 amp alternator.; Remanufactured
2014ChevroletSuburban 15005.3LV8N/ACompatible with vehicles equipped with a 145 amp alternator.; Remanufactured
2014ChevroletTahoe5.3LV8N/ACompatible with vehicles equipped with a 145 amp alternator.; Remanufactured
2014ChevroletTahoe5.3LV8N/ARemanufactured
2014GMCSavana 15005.3LV8N/ACompatible with vehicles equipped with a 145 amp alternator.; Remanufactured
2014GMCSavana 15004.3LV6N/ARemanufactured
2014GMCSierra6.2LV8N/ARemanufactured
2014GMCSierra5.3LV8N/ARemanufactured
2014GMCSierra 2500 HD6.6LV8N/ACompatible with vehicles equipped with a 145 amp alternator.; Remanufactured
2014GMCSierra 2500 HD6.0LV8N/ACompatible with vehicles equipped with a 145 amp alternator.; Remanufactured
2014GMCSierra 3500 HD6.0LV8N/ACompatible with vehicles equipped with a 145 amp alternator.; Remanufactured
2014GMCYukon6.2LV8N/ACompatible with vehicles equipped with a 145 amp alternator.; Remanufactured
2014GMCYukon6.2LV8N/ARemanufactured
2014GMCYukon5.3LV8N/ACompatible with vehicles equipped with a 145 amp alternator.; Remanufactured
2014GMCYukon XL 15006.2LV8N/ACompatible with vehicles equipped with a 145 amp alternator.; Remanufactured
2014GMCYukon XL 15005.3LV8N/ACompatible with vehicles equipped with a 145 amp alternator.; Remanufactured
2013CadillacEscalade6.2LV8N/Aw/ 145 amp alt.; Remanufactured
2013CadillacEscalade ESV6.2LV8N/ACompatible with vehicles equipped with a 145 amp alternator.; Remanufactured
2013CadillacEscalade EXT6.2LV8N/Aw/ 145 amp alt.; Remanufactured
2013ChevroletAvalanche5.3LV8N/Aw/ 145 amp alt.; Remanufactured
2013ChevroletCheyenne5.3LV8N/ACompatible with vehicles equipped with a 145 amp alternator.; Remanufactured
2013ChevroletExpress 15005.3LV8N/ACompatible with vehicles equipped with a 145 amp alternator.; Remanufactured
2013ChevroletExpress 15004.3LV6N/ARemanufactured
2013ChevroletSilverado 15006.2LV8N/Aw/ 145 amp alt.; Remanufactured
2013ChevroletSilverado 15005.3LV8N/Aw/ 145 amp alt.; Remanufactured
2013ChevroletSilverado 15004.8LV8N/Aw/ 145 amp alt.; Remanufactured
2013ChevroletSilverado 15004.3LV6N/ACompatible with vehicles equipped with a 145 amp alternator.; Remanufactured
2013ChevroletSilverado 25005.3LV8N/ACompatible with vehicles equipped with a 145 amp alternator.; Remanufactured
2013ChevroletSilverado 25004.8LV8N/ACompatible with vehicles equipped with a 145 amp alternator.; Remanufactured
2013ChevroletSilverado 2500 HD6.0LV8N/Aw/ 145 amp alt.; Remanufactured
2013ChevroletSilverado 35006.0LV8N/ARemanufactured
2013ChevroletSilverado 3500 HD6.0LV8N/Aw/ 145 amp alt.; Remanufactured
2013ChevroletSuburban 15006.0LV8N/ARemanufactured
2013ChevroletSuburban 15005.3LV8N/ACompatible with vehicles equipped with a 145 amp alternator.; Remanufactured
2013ChevroletSuburban 15005.3LV8N/ARemanufactured
2013ChevroletSuburban 25006.0LV8N/Aw/ 145 amp alt.; Remanufactured
2013ChevroletTahoe5.3LV8N/ACompatible with vehicles equipped with a 145 amp alternator.; Remanufactured
2013ChevroletTahoe5.3LV8N/ARemanufactured
2013GMCSavana 15005.3LV8N/ACompatible with vehicles equipped with a 145 amp alternator.; Remanufactured
2013GMCSavana 15004.3LV6N/ARemanufactured
2013GMCSierra6.2LV8N/ARemanufactured
2013GMCSierra5.3LV8N/ARemanufactured
2013GMCSierra 15006.2LV8N/Aw/ 145 amp alt.; Remanufactured
2013GMCSierra 15005.3LV8N/Aw/ 145 amp alt.; Remanufactured
2013GMCSierra 15004.8LV8N/Aw/ 145 amp alt.; Remanufactured
2013GMCSierra 15004.3LV6N/Aw/ 145 amp alt.; Remanufactured
2013GMCSierra 2500 HD6.0LV8N/Aw/ 145 amp alt.; Remanufactured
2013GMCSierra 3500 HD6.0LV8N/Aw/ 145 amp alt.; Remanufactured
2013GMCYukon6.2LV8N/ACompatible with vehicles equipped with a 145 amp alternator.; Remanufactured
2013GMCYukon6.2LV8N/ARemanufactured
2013GMCYukon5.3LV8N/Aw/ 145 amp alt.; Remanufactured
2013GMCYukon XL 15006.2LV8N/Aw/ 145 amp alt.; Remanufactured
2013GMCYukon XL 15005.3LV8N/Aw/ 145 amp alt.; Remanufactured
2013GMCYukon XL 25006.0LV8N/Aw/ 145 amp alt.; Remanufactured
2012CadillacEscalade6.2LV8N/Aw/ 145 amp alt.; Remanufactured
2012CadillacEscalade ESV6.2LV8N/ACompatible with vehicles equipped with a 145 amp alternator.; Remanufactured
2012CadillacEscalade EXT6.2LV8N/Aw/ 145 amp alt.; Remanufactured
2012ChevroletAvalanche5.3LV8N/Aw/ 145 amp alt.; Remanufactured
2012ChevroletCheyenne5.3LV8N/ACompatible with vehicles equipped with a 145 amp alternator.; Remanufactured
2012ChevroletColorado5.3LV8N/ARemanufactured
2012ChevroletExpress 15005.3LV8N/ACompatible with vehicles equipped with a 145 amp alternator.; Remanufactured
2012ChevroletExpress 15004.3LV6N/ARemanufactured
2012ChevroletSilverado 15005.3LV8N/Aw/ 145 amp alt.; Remanufactured
2012ChevroletSilverado 15004.8LV8N/Aw/ 145 amp alt.; Remanufactured
2012ChevroletSilverado 15004.3LV6N/ACompatible with vehicles equipped with a 145 amp alternator.; Remanufactured
2012ChevroletSilverado 25005.3LV8N/ACompatible with vehicles equipped with a 145 amp alternator.; Remanufactured
2012ChevroletSilverado 25004.8LV8N/ACompatible with vehicles equipped with a 145 amp alternator.; Remanufactured
2012ChevroletSilverado 35006.0LV8N/ARemanufactured
2012ChevroletSuburban 15006.0LV8N/ARemanufactured
2012ChevroletSuburban 15005.3LV8N/ACompatible with vehicles equipped with a 145 amp alternator.; Remanufactured
2012ChevroletSuburban 15005.3LV8N/ARemanufactured
2012ChevroletSuburban 25006.0LV8N/ACompatible with vehicles equipped with a 145 amp alternator.; Remanufactured
2012ChevroletTahoe5.3LV8N/ACompatible with vehicles equipped with a 145 amp alternator.; Remanufactured
2012ChevroletTahoe5.3LV8N/ARemanufactured
2012GMCCanyon5.3LV8N/ARemanufactured
2012GMCSavana 15005.3LV8N/Aw/ Delco alt.; Remanufactured
2012GMCSavana 15004.3LV6N/ARemanufactured
2012GMCSierra6.2LV8N/ARemanufactured
2012GMCSierra5.3LV8N/ARemanufactured
2012GMCSierra 15006.2LV8N/Aw/ 145 amp alt.; Remanufactured
2012GMCSierra 15005.3LV8N/Aw/ 145 amp alt.; Remanufactured
2012GMCSierra 15004.8LV8N/Aw/ 145 amp alt.; Remanufactured
2012GMCSierra 15004.3LV6N/Aw/ 145 amp alt.; Remanufactured
2012GMCYukon6.2LV8N/ACompatible with vehicles equipped with a 145 amp alternator.; Remanufactured
2012GMCYukon6.2LV8N/ARemanufactured
2012GMCYukon5.3LV8N/Aw/ 145 amp alt.; Remanufactured
2012GMCYukon XL 15006.2LV8N/Aw/ 145 amp alt.; Remanufactured
2012GMCYukon XL 15005.3LV8N/Aw/ 145 amp alt.; Remanufactured
2012GMCYukon XL 25006.0LV8N/Aw/ 145 amp alt.; Remanufactured
2011CadillacEscalade6.2LV8N/Aw/ 145 amp alt.; Remanufactured
2011CadillacEscalade ESV6.2LV8N/ACompatible with vehicles equipped with a 145 amp alternator.; Remanufactured
2011CadillacEscalade EXT6.2LV8N/Aw/ 145 amp alt.; Remanufactured
2011ChevroletAvalanche5.3LV8N/Aw/ 145 amp alt.; Remanufactured
2011ChevroletCheyenne5.3LV8N/ACompatible with vehicles equipped with a 145 amp alternator.; Remanufactured
2011ChevroletColorado5.3LV8N/ARemanufactured
2011ChevroletExpress 15005.3LV8N/ACompatible with vehicles equipped with a 145 amp alternator.; Remanufactured
2011ChevroletExpress 15004.3LV6N/ACompatible with vehicles equipped with a 145 amp alternator.; Remanufactured
2011ChevroletSilverado 15005.3LV8N/ACompatible with vehicles equipped with a 145 amp alternator.; Remanufactured
2011ChevroletSilverado 15004.8LV8N/ACompatible with vehicles equipped with a 145 amp alternator.; Remanufactured
2011ChevroletSilverado 15004.3LV6N/Aw/ 145 amp alt., DR37 Type; Remanufactured
2011ChevroletSilverado 25005.3LV8N/ARemanufactured
2011ChevroletSilverado 35006.0LV8N/ARemanufactured
2011ChevroletSuburban 15006.0LV8N/ARemanufactured
2011ChevroletSuburban 15005.3LV8N/ACompatible with vehicles equipped with a 145 amp alternator.; Remanufactured
2011ChevroletSuburban 15005.3LV8N/ARemanufactured
2011ChevroletSuburban 25006.0LV8N/ACompatible with vehicles equipped with a 145 amp alternator.; Remanufactured
2011ChevroletTahoe5.3LV8N/ACompatible with vehicles equipped with a 145 amp alternator.; Remanufactured
2011ChevroletTahoe5.3LV8N/ARemanufactured
2011GMCCanyon5.3LV8N/ARemanufactured
2011GMCSavana 15005.3LV8N/ACompatible with vehicles equipped with a 145 amp alternator.; Remanufactured
2011GMCSavana 15004.3LV6N/ARemanufactured
2011GMCSierra6.2LV8N/ARemanufactured
2011GMCSierra5.3LV8N/ARemanufactured
2011GMCSierra 15005.3LV8N/ACompatible with vehicles equipped with a 145 amp alternator.; Remanufactured
2011GMCSierra 15004.8LV8N/ACompatible with vehicles equipped with a 145 amp alternator.; Remanufactured
2011GMCSierra 15004.3LV6N/Aw/ 145 amp alt.; Remanufactured
2011GMCYukon6.2LV8N/ACompatible with vehicles equipped with a 145 amp alternator.; Remanufactured
2011GMCYukon6.2LV8N/ARemanufactured
2011GMCYukon5.3LV8N/ACompatible with vehicles equipped with a 145 amp alternator.; Remanufactured
2011GMCYukon XL 15006.2LV8N/Aw/ 145 amp alt.; Remanufactured
2011GMCYukon XL 15005.3LV8N/ACompatible with vehicles equipped with a 145 amp alternator.; Remanufactured
2011GMCYukon XL 25006.0LV8N/AOptional w/ 145 amp alt.; Remanufactured
2010CadillacEscalade EXT6.2LV8N/Aw/ 145 amp alt.; Remanufactured
2010ChevroletCheyenne5.3LV8N/ARemanufactured
2010ChevroletExpress 15005.3LV8N/ACompatible with vehicles equipped with a 145 amp alternator.; Remanufactured
2010ChevroletSilverado 15005.3LV8N/AStandard output 145 amp DR37 Delco alt.; Remanufactured
2010ChevroletSilverado 25005.3LV8N/ARemanufactured
2010ChevroletSilverado 35006.0LV8N/ARemanufactured
2010ChevroletSuburban 15005.3LV8N/ARemanufactured
2010ChevroletTahoe5.3LV8N/ARemanufactured
2010GMCSavana 15005.3LV8N/ACompatible with vehicles equipped with a 145 amp alternator.; Remanufactured
2010GMCSierra6.2LV8N/ARemanufactured
2010GMCSierra5.3LV8N/ARemanufactured
2010GMCYukon6.2LV8N/Aw/ Delco DR 37 145 amp alt.; Remanufactured
2010GMCYukon XL 15006.2LV8N/Aw/ 145 Amp Alternator; Remanufactured
2010GMCYukon XL 25006.0LV8N/Aw/ 145 amp DR37 type alt; Remanufactured
2010HummerH35.3LV8N/ARemanufactured
2010HummerH3T5.3LV8N/ARemanufactured
2009ChevroletCheyenne5.3LV8N/ARemanufactured
2009ChevroletExpress 15004.3LV6N/Aw/ 2 pin plug DR37 Delco 145 amp alt.; Remanufactured
2009ChevroletSilverado 25005.3LV8N/ARemanufactured
2009ChevroletSilverado 35006.0LV8N/ARemanufactured
2009ChevroletSuburban 15005.3LV8N/ARemanufactured
2009ChevroletTahoe5.3LV8N/ARemanufactured
2009GMCSierra6.2LV8N/ARemanufactured
2009GMCSierra5.3LV8N/ARemanufactured
2009GMCYukon6.2LV8N/Aw/ Delco DR 37 145 amp alt.; Remanufactured
2009GMCYukon6.2LV8N/ARemanufactured
2009GMCYukon5.3LV8N/ARemanufactured
2009GMCYukon XL 15006.2LV8N/Aw/ 145 amp Delco alt., DR37 Type; Remanufactured
2009GMCYukon XL 15006.0LV8N/Aw/ 145 amp Delco alt., DR37 Type; Remanufactured
2009GMCYukon XL 15005.3LV8N/Aw/ 145 amp Delco alt., DR37 Type; Remanufactured
2009GMCYukon XL 25006.0LV8N/Aw/ 145 amp Delco alt., DR37 Type; Remanufactured
2008ChevroletCheyenne5.3LV8N/ARemanufactured
2008ChevroletSilverado 25005.3LV8N/ARemanufactured
2008ChevroletSilverado 35006.0LV8N/ARemanufactured
2008ChevroletSuburban 15005.3LV8N/ARemanufactured
2008ChevroletTahoe5.3LV8N/ARemanufactured
2008GMCSierra6.2LV8N/ARemanufactured
2008GMCSierra5.3LV8N/ARemanufactured
2008GMCYukon6.2LV8N/ARemanufactured
2008GMCYukon5.3LV8N/ARemanufactured
2007ChevroletCheyenne5.3LV8N/ARemanufactured
2007ChevroletSuburban 15005.3LV8N/ARemanufactured
2007ChevroletTahoe5.3LV8N/ARemanufactured
2007GMCSierra5.3LV8N/ARemanufactured
2007GMCYukon6.2LV8N/ARemanufactured
2007GMCYukon5.3LV8N/ARemanufactured
Directly replaces or cross-references 4 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
BBB Industries — 855084002072088133725968616