20989651 Genuine GM Alternator For Express Savana Silverado Sierra 4.8L 5.3L 6.0L

Name: 20989651 Genuine GM Alternator For Express Savana Silverado Sierra 4.8L 5.3L 6.0L
Brand: GM
Price: 389.00 USD
Availability: InStock

P/N: 20989651 Manufactured by: GM

$389.00 - $389.00

$389.00

$389.00 - $389.00

$389.00

9 in Stock

Condition: New

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Description

The 20989651 alternator is a GM factory charging component designed for Chevrolet, GMC, Cadillac, and similar vehicles equipped with compatible V6 and V8 engines. It delivers consistent electrical output to maintain battery charge and ensure proper operation of vehicle systems under normal driving conditions.

Vehicle Compatibility

Year	Vehicle	Engine	Trims
2016	Chevrolet Express 2500/3500	4.8L / 6.0L / 6.6L	Base, LS, Cargo, Passenger
2016	GMC Savana 3500/4500	4.8L / 6.0L / 6.6L	LS, LT, Passenger
2015	Chevrolet Express 2500	4.8L / 6.0L / 6.6L	Base, Cargo
2014	Chevrolet Express 1500/2500	4.3L / 4.8L / 6.0L / 6.6L	Base, LS, LT
2014	GMC Savana 3500/4500	4.8L / 6.0L / 6.6L	LS, LT, Passenger
2013	Chevrolet Express 1500	4.3L / 5.3L	Base, LS
2013	GMC Savana 3500/4500	6.0L	SL, Base
2012	Chevrolet Express 1500/2500	4.3L / 4.8L / 5.3L / 6.0L / 6.6L	Base, LS, LT
2011	Chevrolet Express 1500/2500	4.3L / 4.8L / 6.0L / 6.6L	Base, LS, LT
2011	GMC Savana 3500/4500	6.0L / 6.6L	LS, LT
2010	Cadillac Escalade / ESV / EXT	6.2L / 6.0L Hybrid	Base, Platinum
2010	Chevrolet Avalanche	5.3L	LS, LT
2010	GMC Savana 3500/4500	6.0L	LS, LT
2010	GMC Yukon / Yukon XL 1500/2500	5.3L / 6.0L / 6.2L	SLE, SLT, Denali
2010	Hummer H3 / H3T	5.3L	Alpha
2009	Chevrolet Express 1500	4.3L / 5.3L	Base, LS
2008	Chevrolet Express 1500/2500/3500	4.8L / 6.0L / 6.6L	Base, LS, LT
2007	Chevrolet Express 1500/2500	4.3L / 4.8L / 6.0L / 6.6L	Base, LS, LT
2007	GMC Sierra 1500 Classic / 2500 HD Classic	4.3L / 4.8L / 5.3L / 6.0L / 6.6L	WT, SL, SLE, SLT
2006	Chevrolet Express 1500/2500	4.3L / 4.8L / 6.0L / 6.6L	Base, LS, LT
2006	GMC Yukon / Yukon XL 1500/2500	5.3L / 6.0L / 8.1L	SLE, SLT
2006	Saab 9-7x	5.3L	Base
2006	Isuzu Ascender	5.3L	LS
2005	Chevrolet Astro	4.3L	Base, LS
2005	Chevrolet Express 1500	4.3L / 5.3L	Base, LS
2005	GMC Savana 2500/3500	4.8L / 5.3L / 6.0L	SLE
2005	GMC Yukon / Yukon XL 1500/2500	5.3L / 6.0L	SLE, SLT, Denali
2004	Chevrolet Express 3500	4.8L	Base, LS
2004	GMC Savana 3500	4.8L	Base, SLE

General Specifications

Condition	New
Part Number	20989651
Brand	GM
Part Type	Alternator
Years	2004–2016
Fitment Type	Direct replacement
Weight	16.50 lb
Dimensions	9.5 x 8.4 x 8.1 inches

Product Features

The 20989651 alternator is built to match factory performance and installation requirements:

Provides steady electrical output for charging system operation
Maintains proper battery voltage across varying load conditions
Designed for GM truck, van, and SUV electrical systems
Matches original mounting points and wiring connections
Supports reliable operation of onboard electronics and accessories
Built to GM specifications for consistent performance

Application Notes

The 20989651 alternator is intended for vehicles equipped with the factory charging system and compatible engine configurations listed above. Proper installation ensures correct electrical output and system operation.

Always verify part number, engine configuration, VIN code, and pulley requirements before installation.