20881337 Genuine GM Alternator For Silverado Sierra Express V8

Name: 20881337 Genuine GM Alternator For Silverado Sierra Express V8
Brand: GM
Price: 348.00 USD
Availability: InStock

P/N: 20881337 Manufactured by: GM

$348.00 - $348.00

$348.00

$348.00 - $348.00

$348.00

8 in Stock

Condition: New

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Description

The 20881337 alternator is a genuine GM generator assembly designed to supply consistent electrical output for charging and vehicle systems. It maintains proper battery charge and supports stable operation of onboard electronics under varying loads.

Vehicle Compatibility

Year	Vehicle	Engine	Trims
2020	Chevrolet LCF 3500 / 4500	6.0L V8 Gas, Flex, CNG	Base Straight Truck - Low Cab / Tilt
2019	Chevrolet LCF 3500 / 4500	6.0L V8 Gas, Flex, CNG	Base Straight Truck - Low Cab / Tilt
2018	Chevrolet LCF 3500 / 4500	6.0L V8 Gas, Flex	Base Straight Truck - Low Cab / Tilt
2017	Chevrolet LCF 3500 / 4500	6.0L V8 Gas, Flex, CNG	Base Straight Truck - Low Cab / Tilt
2016	Chevrolet LCF 3500 / 4500	6.0L V8 Gas, Flex, CNG	Base Straight Truck - Low Cab / Tilt
2014	Cadillac Escalade / ESV	6.2L V8 Gas, Flex	Base, Luxury, Premium, Platinum
2013	Cadillac Escalade / ESV / EXT	6.2L V8 Gas, Flex, Hybrid	Base, Luxury, Premium, Platinum
2013	Chevrolet Avalanche	5.3L V8 Flex	Base, LS, LT, LTZ
2012	Chevrolet Silverado 1500	4.3L V6, 4.8L V8, 5.3L V8, 6.2L V8 Hybrid	LS, LT, LTZ, WT
2011	Chevrolet Silverado 1500	4.3L V6, 4.8L V8, 5.3L V8, 6.2L V8 Hybrid	LS, LT, LTZ, WT
2010	Chevrolet Avalanche / Colorado / Express / Suburban / Silverado 1500/2500 HD	Multiple V6 & V8 engines	Multiple trims
2009	Chevrolet Avalanche / Colorado / Express / Silverado 1500/2500 HD	Multiple V6 & V8 engines	Multiple trims
2008	Chevrolet Avalanche / Silverado 1500	Multiple V6 & V8 engines	LS, LT, LTZ, WT
2007	Chevrolet Silverado 1500 / 2500 HD / Classic	Multiple V6 & V8 engines	LS, LT, LTZ, WT
2007	GMC Sierra 2500 HD / Classic, Yukon XL 1500 / 2500	Multiple V8 engines	SLE, SLT

General Specifications

Condition	New
Part Number	20881337
Brand	GM
Part Type	Alternator
Years	2007–2020
Dimensions	10.7 x 10.6 x 10.6 inches
Weight	16.70 lb
Fitment Type	Direct replacement

Product Features

The 20881337 alternator is built to match factory performance and installation requirements:

Provides stable electrical output for charging system operation
Maintains proper battery voltage under varying load conditions
Designed for compatibility with GM electrical systems
Matches factory mounting points and electrical connections
Supports reliable operation of onboard electronics and accessories
Built to GM specifications for consistent performance

Application Notes

The 20881337 alternator is intended for vehicles equipped with the factory charging system listed above.

Always verify part number, engine configuration, and electrical system requirements before installation.