GM Genuine Parts 20881337 | Alternator

Name: GM Genuine Parts 20881337 | Alternator
Brand: GM Genuine Parts
SKU: ACD20881337
Price: 239.99 USD
Availability: InStock

Part Number

20881337

Alternator

Fits: 07-14 Cadillac Escalade, 07-14 Cadillac Escalade ESV, 07-13 Cadillac Escalade EXT, 07-13 Chevrolet Avalanche, 07-13 Chevrolet Silverado 1500, 07-14 Chevrolet Silverado 2500 HD, 07-14 Chevrolet Suburban 1500, 07-13 Chevrolet Suburban 2500, 07-14 Chevrolet Tahoe, 07-13 GMC Sierra 1500, 07-14 GMC Sierra 2500 HD, 07-14 GMC Yukon, 07-14 GMC Yukon XL 1500, 07-13 GMC Yukon XL 2500, 08-10 Hummer H3, 09-12 Chevrolet Colorado, 09-14 Chevrolet Express 1500, 09-12 GMC Canyon, 09-14 GMC Savana 1500, 09-10 Hummer H3T, 10 Chevrolet Express 2500, 10 Chevrolet Express 3500, 10 Chevrolet Express 4500, 10 GMC Savana 2500, 10 GMC Savana 3500, 10 GMC Savana 4500

Special Price $220.79 Regular Price $239.99

In stock

Estimated Ship Date: 1 Business Day or Less

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Details

ACDelco GM Original Equipment Light Duty Alternators have components that are newly manufactured, and are GM-recommended replacement for your vehicle's original alternator. Alternators provide power to the vehicle's electrical systems and charge the battery while the engine is running. These original equipment alternators have been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.
Alternator

BRAND: ACDelco

FEATURES:

100% newly manufactured as an exact replacement for your GM vehicle's original alternator
Alternator
Components are tested to meet original specification requirements for remarkable durability
GM-recommended replacement part for your GM vehicle's original factory component
Manufactured to GM OE specifications for fit, form, and function
Offering the quality, reliability, and durability of GM OE

SPECIFICS:

1068_in	2.3
181_in	0.83
181_mm	21.0
183_in	2.00
183_mm	51.0
ACD_RemanDes	No
Comparison Chart 1	PL31_PL33_CC_NewRemanChart.jpg
FAQ - A1	Yes. These alternators are designed to withstand a wide range of weather conditions.
FAQ - A2	No. Some vehicles require more amperage than others depending on the amount of electronics that need to be operated. Consult the vehicle information for proper application.
FAQ - Q1	Can I be assured that the unit will last, especially in extreme weather?
FAQ - Q2	Do all alternators supply the same amperage?
Good Maintenance Practices - S1 B1	There is a cooling fan in most alternators to keep it from overheating. Making sure that the fan is clean will help the fan and alternator run properly.
Good Maintenance Practices - S1 B2	It is also important that all electrical connections are kept clean and firmly attached, which will make sure the battery is being properly charged by the alternator.
Marketing Statement - Product Line	Stay with the parts brand your General Motors vehicle came with and get the quality you know and trust with ACDelco GM Original Equipment Starters and Alternators. ACDelco GM OE replacement parts give you the peace of mind that the fit, form, and function is up to the high standards and specifications of General Motors. ACDelco GM Original Equipment Starter and Alternators are manufactured for virtually every model of GM car, light duty truck, and sport utility vehicle.
Mkt_State_Warranty_CA	36 Months/60,000 KM (Parts Only). Please see ACDelcocanada.com for more details.
Mkt_State_Warranty_US	24 Month / Unlimited Mile Limited Warranty (Parts Only). Please see ACDelco.com for more details.
PAdb Update Date	2014-09-09
Signs of Wear & Troubleshooting - S1 B1	Engine doesn't turn over or start
Signs of Wear & Troubleshooting - S1 B2	Loss of battery power
Signs of Wear & Troubleshooting - S1 B3	Some loss of electrical power (dimming headlight, etc.)
Signs of Wear & Troubleshooting - S1 B4	Grinding or squeaking noise
Signs of Wear & Troubleshooting - S1 B5	Alternator warning light illuminates
Signs of Wear & Troubleshooting - S1 H	Indicators that there could be a problem with your vehicle's alternator are:
Signs of Wear & Troubleshooting - S2 B1	Bad battery
Signs of Wear & Troubleshooting - S2 B2	Broken, frayed, or loose drive belt
Signs of Wear & Troubleshooting - S2 B3	Electrical fault
Signs of Wear & Troubleshooting - S2 B4	Worn or damaged bearings
Signs of Wear & Troubleshooting - S2 B5	Corroded or loose battery terminal connection
Signs of Wear & Troubleshooting - S2 B6	Burned fuses or fusible links
Signs of Wear & Troubleshooting - S2 H	Other vehicle parts that might cause related alternator problems include:
Signs of Wear & Troubleshooting - S3 B1	Battery health
Signs of Wear & Troubleshooting - S3 B2	Diagnostic trouble codes
Signs of Wear & Troubleshooting - S3 H	When making repairs on electrical systems, in-depth diagnosis is needed before parts replacement. This includes checking:
Vintage_Part_Indicator	N

DOWNLOADS:

APPLICATIONS:

2010-2010 Hummer H3

LABELED 20881337 2 WIRE

2008-2009 Hummer H3

STAMPED "JD" 2 WIRE

2007-2013 GMC Sierra 1500

145 AMP(KG3) 2 WIRE

2010-2010 Chevrolet Colorado

LABELED 20881337 2 WIRE

2009-2009 Chevrolet Colorado

STAMPED "JD" 2 WIRE

2010-2010 Chevrolet Express 2500

145 AMP(KG3) 1st Design VEH BUILT W/ A 2 WIRE CONN, FOR GENERATOR)(FOR 2ND DES SEE 22781131 2 WIRE

2009-2014 Chevrolet Express 1500

145 AMP(KG3) 145 AMP 2 WIRE

2007-2014 Chevrolet Suburban 1500

145 AMP(KG3) 2 WIRE

2007-2014 GMC Sierra 2500 HD

145 AMP(KG3) 2 WIRE

2009-2014 GMC Savana 1500

145 AMP(KG3) 145 AMP 2 WIRE

2007-2014 Cadillac Escalade

145 AMP(KG3) 2 WIRE

2007-2014 GMC Yukon

145 AMP(KG3) 2 WIRE

2009-2014 Chevrolet Express 1500

145 AMP 2 WIRE

2010-2010 Hummer H3T

LABELED 20881337 2 WIRE

2007-2013 Chevrolet Suburban 2500

145 AMP(KG3) 2 WIRE

2011-2012 Chevrolet Colorado

145 AMP(KG3) 2 WIRE

2010-2010 GMC Savana 2500

145 AMP(KG3) 1st Design VEH BUILT W/ A 2 WIRE CONN, FOR GENERATOR)(FOR 2ND DES SEE 22781131 2 WIRE

2007-2013 Chevrolet Silverado 1500

145 AMP(KG3) 2 WIRE

2010-2010 GMC Savana 4500

145 AMP(KG3) 1st Design VEH BUILT W/ A 2 WIRE CONN, FOR GENERATOR)(FOR 2ND DES SEE 22781131 2 WIRE

2007-2014 Cadillac Escalade ESV

145 AMP(KG3) 2 WIRE

2007-2013 Cadillac Escalade EXT

145 AMP(KG3) 2 WIRE

2007-2014 Chevrolet Tahoe

145 AMP(KG3) 2 WIRE

2011-2012 GMC Canyon

145 AMP(KG3) 2 WIRE

2010-2010 GMC Savana 3500

145 AMP(KG3) 1st Design VEH BUILT W/ A 2 WIRE CONN, FOR GENERATOR)(FOR 2ND DES SEE 22781131 2 WIRE

2010-2010 GMC Canyon

LABELED 20881337 2 WIRE

2007-2013 Chevrolet Avalanche

145 AMP(KG3) 2 WIRE

2009-2009 GMC Canyon

STAMPED "JD" 2 WIRE

2007-2013 GMC Yukon XL 2500

145 AMP(KG3) 2 WIRE

2010-2010 Chevrolet Express 4500

145 AMP(KG3) 1st Design VEH BUILT W/ A 2 WIRE CONN, FOR GENERATOR)(FOR 2ND DES SEE 22781131 2 WIRE

2007-2014 GMC Yukon XL 1500

145 AMP(KG3) 2 WIRE

2010-2010 Chevrolet Express 3500

145 AMP(KG3) 1st Design VEH BUILT W/ A 2 WIRE CONN, FOR GENERATOR)(FOR 2ND DES SEE 22781131 2 WIRE

2007-2014 Chevrolet Silverado 2500 HD

145 AMP(KG3) 2 WIRE

2009-2009 Hummer H3T

STAMPED "JD" 2 WIRE

2009-2014 GMC Savana 1500

145 AMP 2 WIRE

Product Questions (7)

Customer Questions

Will the alternator drain my battery?

No, the alternator is not designed to drain the battery. Instead, it charges the battery while the engine is running. If your battery is being drained, it could be due to a variety of factors, and it's recommended to have your vehicle inspected by a mechanic.

How do alternators work?

Alternators convert mechanical energy from the engine into electrical energy to power the vehicle's electrical system and charge the battery. They consist of a rotor, stator, and voltage regulator, which work together to produce electrical energy that is used to power the vehicle's electrical components and charge the battery.

Which alternator do I need?

To determine which alternator you need, consider your vehicle's make and model, engine size, and electrical system requirements.

Which alternator system is controlled by the PCM?

The variable voltage alternator system is commonly controlled by the PCM in modern vehicles.

Does AC Delco make Ford parts?

No, AC Delco produces parts primarily for General Motors vehicles and does not make parts specifically for Ford vehicles.

Can I use AC Delco parts to replace OEM parts?

Yes, in most cases AC Delco parts can be used as a replacement for OEM parts. However, it's important to ensure that the parts are compatible with your specific make and model of vehicle.

What AC Delco oil filter do I need?

AC Delco offers a variety of oil filters that are compatible with different makes and models of vehicles. To determine which AC Delco oil filter you need, consult your vehicle's owner's manual or use our online filter lookup tool that matches the make, model, and year of your vehicle.