ACDelco 321-2127 Alternator

Part Number

321-2127

AlternatorFits: 02-05 Chevrolet Trailblazer, 02-05 Chevrolet Trailblazer EXT, 02-05 GMC Envoy, 02-05 GMC Envoy XL, 02-04 Oldsmobile Bravada, 03-05 Isuzu Ascender, 04-05 Buick Rainier, 04-05 GMC Envoy XUV, 05 Saab 9-7x

Special Price $266.04 Regular Price $312.99

In stock

Estimated Ship Date: 1 Business Day or Less

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Details

ACDelco GM Original Equipment Light Duty Remanufactured Alternators are GM-recommended replacement for your vehicle's original alternator. Alternators provide power to your vehicle's electrical systems and charge the battery while the engine is running. ACDelco GM Original Equipment Light Duty Remanufactured Alternators are engineered for virtually every make and model of GM car, light duty truck, and sport utility vehicle. Remanufacturing alternators is an industry standard practice that involves disassembly of existing units, and replacing components that are most prone to wear with new components. Damaged and obsolete parts are replaced and are end of line tested to ensure they perform to ACDelco specifications. In addition, remanufacturing returns components back into service rather than processing as scrap or simply disposing of them. These 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:

Components are tested to meet original specification requirements for remarkable durability
Remanufactured to meet or exceed original equipment specifications and are performance-tested
Remanufacturing is an industry standard practice that returns parts into service rather than scrapping them
Tested to ensure they perform to GM specifications

SPECIFICS:

1068_in	2.4
181_in	1.02
181_mm	26.0
ACD_Reman_Sentence	Remanufactured - Not for sale where imports are restricted.
ACD_RemanDes	Remanufactured
ACD_RemanDesc_woNo	Remanufactured
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:

2005-2005 GMC Envoy XUV

150 AMP GEN(KG4)

2005-2005 GMC Envoy

150 AMP GEN(KG4)

2005-2005 Saab 9-7x

150 AMP GEN(KG4)

2002-2004 GMC Envoy

150 AMP GEN(KG4) AMPS 150

2002-2004 Chevrolet Trailblazer

150 AMP GEN(KG4) AMPS 150

2005-2005 GMC Envoy XL

150 AMP GEN(KG4)

2005-2005 Chevrolet Trailblazer

150 AMP GEN(KG4)

2002-2004 GMC Envoy XL

150 AMP GEN(KG4) AMPS 150

2005-2005 Buick Rainier

150 AMP GEN(KG4)

2002-2004 Oldsmobile Bravada

150 AMP GEN(KG4) AMPS 150

2003-2004 Isuzu Ascender

150 AMP GEN(KG4) AMPS 150

2005-2005 Chevrolet Trailblazer EXT

150 AMP GEN(KG4)

2005-2005 Isuzu Ascender

150 AMP GEN(KG4)

2004-2004 Buick Rainier

150 AMP GEN(KG4) AMPS 150

2004-2004 GMC Envoy XUV

150 AMP GEN(KG4) AMPS 150

2002-2004 Chevrolet Trailblazer EXT

150 AMP GEN(KG4) AMPS 150

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.