ACDelco 15145637 Alternator

Part Number

Fits: 04-05 Buick LeSabre, 04-05 Pontiac Bonneville

Special Price $251.59 Regular Price $295.99
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  • Alternator


Amperage Rating140
Comparison Chart 1PL31_PL33_CC_NewRemanChart.jpg
External Regulator IncludedNo
FamilyNippondenso IR HP
Fan TypeInternal
FAQ - A1Yes. These alternators are designed to withstand a wide range of weather conditions.
FAQ - A2No. 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 - Q1Can I be assured that the unit will last, especially in extreme weather?
FAQ - Q2Do all alternators supply the same amperage?
Features & Benefits - B1100% newly manufactured as an exact replacement for your GM vehicle's original alternator
Features & Benefits - B2Components are tested to meet original specification requirements for remarkable durability
Features & Benefits - B3GM-recommended replacement part for your GM vehicle's original factory component
Features & Benefits - B4Offering the quality, reliability, and durability of GM OE
Features & Benefits - B5Manufactured to GM OE specifications for fit, form, and function
Good Maintenance Practices - S1 B1There 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 B2It 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.
Ground TypeNegative
Marketing Statement - Product LineStay 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_CA36 Months/60,000 KM (Parts Only). Please see for more details.
Mkt_State_Warranty_US24 Month / Unlimited Mile Limited Warranty (Parts Only). Please see for more details.
Mounting TypePad Mount
One Wire CapableNo
Plug Clock Rear View Main Mounting Ear at 6 O Clock9
Product DescriptionACDelco 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.
Programming RequiredNO
Pulley Belt TypeSerpentine
Pulley Groove Quantity6
Pulley IncludedYes
Regulator TypeInternal
Rotation DirectionClockwise
Signs of Wear & Troubleshooting - S1 B1Engine doesn't turn over or start
Signs of Wear & Troubleshooting - S1 B2Loss of battery power
Signs of Wear & Troubleshooting - S1 B3Some loss of electrical power (dimming headlight, etc.)
Signs of Wear & Troubleshooting - S1 B4Grinding or squeaking noise
Signs of Wear & Troubleshooting - S1 B5Alternator warning light illuminates
Signs of Wear & Troubleshooting - S1 HIndicators that there could be a problem with your vehicle's alternator are:
Signs of Wear & Troubleshooting - S2 B1Bad battery
Signs of Wear & Troubleshooting - S2 B2Broken, frayed, or loose drive belt
Signs of Wear & Troubleshooting - S2 B3Electrical fault
Signs of Wear & Troubleshooting - S2 B4Worn or damaged bearings
Signs of Wear & Troubleshooting - S2 B5Corroded or loose battery terminal connection
Signs of Wear & Troubleshooting - S2 B6Burned fuses or fusible links
Signs of Wear & Troubleshooting - S2 HOther vehicle parts that might cause related alternator problems include:
Signs of Wear & Troubleshooting - S3 B1Battery health
Signs of Wear & Troubleshooting - S3 B2Diagnostic trouble codes
Signs of Wear & Troubleshooting - S3 HWhen making repairs on electrical systems, in-depth diagnosis is needed before parts replacement. This includes checking:

140 AMP(KG9) AMPS 140



  • 2004-2005 Pontiac Bonneville
  • 2004-2005 Buick LeSabre
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