FWGC 8302R-6G1 Alternator
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FWGC

FWGC 8302R-6G1 Alternator

Brand FWGC 8302R-6G1
Voltage 12
Fan Type Internal
Rotation Direction Clockwise (right)
Pulley Included Yes
Family Delco
Pulley Groove Quantity 6
Pulley Belt Type Serpentine
Regulator Type Internal
Decoupled Or Clutch Pulley No
Amperage Rating 145
Fits Cadillac, Chevrolet, GMC, and Isuzu · 26 vehicles

145-amp output. Supports the electrical demand of modern charging systems.

Internal regulation. Built with an integrated voltage regulator for stable operation.

Serpentine drive. Uses a 6-groove pulley for specified belt configurations.

Cross-references BBB Industries 8302, 8400078 and 8400105 for the same application. See all 6.

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Alternator Overview

This 12-volt alternator is built for vehicles that need steady charging output and dependable electrical performance. It uses an internal regulator, internal fan, and a serpentine pulley setup to match the specified application requirements.

Part number 8302R-6G1 is a DELCO-family alternator with a 145-amp rating and clockwise rotation. It is a fitment-based replacement for select Chevrolet Silverado 1500, GMC Sierra 1500, and Cadillac Escalade applications, along with other listed trucks and SUVs.

Key Features

  • 145-amp output for modern electrical loads
  • Internal regulator for integrated voltage control
  • Internal fan design for compact alternator packaging
  • Serpentine pulley with 6 grooves
  • Clockwise rotation with decoupled clutch pulley not used
  • DELCO family configuration for specified applications

Detailed Description

Power Select alternators are engineered to deliver the amperage needed for today’s vehicle electrical systems. This unit is built with proprietary components and manufacturing processes intended to support long service life and consistent performance. The 8302R-6G1 alternator is specified with a 12-volt system, internal regulator, internal fan, and included pulley, making it a direct match for the listed charging system requirements.

Fitment includes 2005-2007 Chevrolet Silverado 1500, 2005-2006 Chevrolet Silverado 1500 HD, 2005 Chevrolet Silverado 2500 HD, 2005 Chevrolet Silverado 3500, 2005-2006 GMC Sierra 1500, 2005 GMC Sierra 1500 HD, 2005 GMC Sierra 2500 HD, 2005 GMC Sierra 3500, 2005-2006 Cadillac Escalade, 2005-2006 Cadillac Escalade ESV, 2005-2006 Cadillac Escalade EXT, and 2019-2020 Isuzu NPR applications with the listed Delco charging system notes. Part number 8302R-6G1 also cross-references BBB Industries 8302 for the same application.

Common Replacement Uses

  • Charging system warning lights caused by alternator output issues
  • Battery drain from insufficient charging performance
  • Dim lights or unstable electrical operation under load
  • Noise or wear related to alternator pulley and internal components
  • Replacement for a failed 145-amp Delco-style alternator

Installation Notes

Verify the vehicle’s original alternator family, amperage rating, pulley groove count, and rotation direction before installation. This unit is specified for clockwise rotation and a serpentine belt drive, so matching the existing charging system configuration is important. Confirm the application notes for Delco DR44, DR44G, or DR37 references where listed.

Quality Assurance

Power Select alternators are manufactured with proprietary components and processes to support maximum life and performance. Part number 8302R-6G1 is built to meet the electrical demands of the specified applications.

Related reading

This part fits 26 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersNotes
2020IsuzuNPR———
2019IsuzuNPR———
2007ChevroletSilverado 15004.3LV6With Delco DR44G 145 Amp 57mm OD Pulley
2007ChevroletSilverado 1500 Classic5.3LV8With Delco DR44 145 Amp or DR37 145 Amp, Supplied as DR37 145 Amp
2007GMCSierra 15004.3LV6With Delco DR44G 145 Amp 57mm OD Pulley
2007GMCSierra 1500 Classic5.3LV8With Delco DR44 145 Amp or DR37 145 Amp, Supplied as DR37 145 Amp
2006CadillacEscalade——With Delco DR44 145 Amp or DR37 145 Amp, Supplied as DR37 145 Amp
2006CadillacEscalade ESV——With Delco DR44 145 Amp or DR37 145 Amp, Supplied as DR37 145 Amp
2006CadillacEscalade EXT——With Delco DR44 145 Amp or DR37 145 Amp, Supplied as DR37 145 Amp
2006ChevroletAvalanche 1500——With Delco DR44 145 Amp or DR37 145 Amp, Supplied as DR37 145 Amp
2006ChevroletSilverado 15005.3LV8With Delco DR44 145 Amp or DR37 145 Amp, Supplied as DR37 145 Amp
2006ChevroletSilverado 1500 HD——With Delco DR44 145 Amp or DR37 145 Amp, Supplied as DR37 145 Amp
2006GMCSierra 15005.3LV8With Delco DR44 145 Amp or DR37 145 Amp, Supplied as DR37 145 Amp
2006GMCYukon XL 15005.3LV8With Delco DR44 145 Amp or DR37 145 Amp, Supplied as DR37 145 Amp
2005CadillacEscalade6.0LV8With Delco DR44 145 Amp or DR37 145 Amp, Supplied as DR37 145 Amp
2005CadillacEscalade ESV——With Delco DR44 145 Amp or DR37 145 Amp, Supplied as DR37 145 Amp
2005CadillacEscalade EXT——With Delco DR44 145 Amp or DR37 145 Amp, Supplied as DR37 145 Amp
2005ChevroletAvalanche 1500——With Delco DR44 145 Amp or DR37 145 Amp, Supplied as DR37 145 Amp
2005ChevroletSilverado 15006.0LV8With Delco DR44 145 Amp or DR37 145 Amp, Supplied as DR37 145 Amp
2005ChevroletSilverado 1500 HD——With Delco DR44 145 Amp or DR37 145 Amp, Supplied as DR37 145 Amp
2005ChevroletSilverado 2500 HD6.0LV8With Delco DR44 145 Amp or DR37 145 Amp, Supplied as DR37 145 Amp
2005ChevroletSilverado 35006.0LV8With Delco DR44 145 Amp or DR37 145 Amp, Supplied as DR37 145 Amp
2005GMCSierra 15005.3LV8With Delco DR44 145 Amp or DR37 145 Amp, Supplied as DR37 145 Amp
2005GMCSierra 1500 HD——With Delco DR44 145 Amp or DR37 145 Amp, Supplied as DR37 145 Amp
2005GMCSierra 2500 HD6.0LV8With Delco DR44 145 Amp or DR37 145 Amp, Supplied as DR37 145 Amp
2005GMCSierra 35006.0LV8With Delco DR44 145 Amp or DR37 145 Amp, Supplied as DR37 145 Amp
Directly replaces or cross-references 6 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
BBB Industries — 830284000788400105103927591520026815263858