MPA Electrical 8302603 Alternator

Remanufactured 145 Amp Alternator for GM Trucks

MPA Electrical Part Number 8302603 is a remanufactured 12-volt alternator built around a Delco design with a 145 amp output, internal regulator, internal fan, and 6-groove serpentine pulley. It is a direct-fit charging system replacement for a wide range of Chevrolet, GMC, Cadillac, Hummer, and Saab applications that use the DR44-style alternator configuration.

For shoppers searching for a remanufactured alternator for a 2010 Chevrolet Silverado 1500, 2007-2009 GMC Sierra 1500, or 2007-2010 Cadillac Escalade, this unit matches the listed electrical and pulley specifications. Part number 8302603 is also a fitment-based replacement for many GM full-size trucks and SUVs across the 2005-2011 model years.

Key Features

• 145 amp output for 12-volt charging systems
• Delco-style remanufactured alternator construction
• Internal voltage regulator for simplified integration
• Internal fan design
• 6-groove serpentine pulley
• Clockwise rotation
• 3:00 plug clocking
• Fits many Chevrolet Silverado, GMC Sierra, Tahoe, Yukon, and Escalade applications

Product Details

This remanufactured alternator is specified for vehicles that use a Delco DR44-type charging unit with a 145 amp capacity. The combination of internal regulation, clockwise rotation, and 6-groove serpentine pulley makes it a practical replacement for GM trucks and SUVs that require the same mounting and electrical configuration. Part number 8302603 should be matched to the vehicle’s original alternator style, plug orientation, and amperage rating before ordering.

This part cross-references BBB Industries 8302 for the same application.

What It Helps Address

• Battery warning light caused by alternator output loss
• Low charging voltage at idle or under load
• Dim lights or electrical instability
• Charging system failure after alternator wear
• Replacement needs for a Delco 145 amp DR44-style unit

Installation Notes and Fitment Tips

Verify the original alternator amperage, pulley groove count, plug clocking, and regulator connection before installation. This unit is listed for applications such as Fits 2011 Chevrolet Silverado 1500, N/A; Fits 2011 Chevrolet Suburban 1500, N/A; Fits 2010 Chevrolet Silverado 1500, N/A; Fits 2010 GMC Sierra 1500, N/A; Fits 2007-2010 Cadillac Escalade, N/A; and Fits 2007-2009 Chevrolet Tahoe, N/A. Additional listed applications include Fits 2007-2009 GMC Yukon, N/A and Fits 2008-2009 Hummer H3, N/A.

Because several vehicles in this range use different alternator options, confirm the original unit against the vehicle’s existing Delco 145 amp setup, 2-pin regulator plug, or 3:00 plug orientation where noted in the fitment data.

Quality Assurance

MPA Electrical identifies this unit as remanufactured and built to the listed Delco-based specifications for the stated applications. The product details, amperage rating, pulley style, and fitment notes should be used to confirm the correct replacement before installation.