
OE
Pack of 1
OE
Pack of 1
GM Genuine Parts Generator
GM Part #42842358
ACDelco Part #42842358
About this product
GM Genuine Parts Alternators are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These alternators provide power to the vehicle's electrical systems and charge the battery while the engine is running. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE).
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
- Newly manufactured as an exact replacement for your GM vehicle's original alternator
- Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)
- GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors
- GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
- GM regularly updates production and service part designs to integrate new materials and technologies
Pulley Belt TypeSerpentine
Terminal Quantity3
Distance Between Mounting Feet5.45 in / 138.55 mm
Outside Pulley Diameter2.56 in / 65 mm
Case Circumference5.63 in / 143 mm
ClassificationOE
Drive End To Pulley 1st Groove Distance2.86 in / 72.74 mm
Pulley Groove Quantity5
Pulley IncludedYes
Plug Type365
Decoupled Or Clutch PulleyYes
One Wire CapableYes
Mounting TypeFront Mount
Plug Clock Rear View Main Mounting Ear at 6 O Clock1
Regulator TypeInternal
Ground TypeNegative
External Regulator IncludedNo
Case MaterialAluminum
Case ColorNatural
AC Service TapNo
Fan TypeInternal
FinishUncoated
External Fan IncludedNo
Rotation DirectionClockwise (Right)
Voltage12DC
Grade TypeStandard Replacement
Amperage Rating156A
Pulley Belt TypeSerpentine
Distance Between Mounting Feet5.45 in / 138.55 mm
Case Circumference5.63 in / 143 mm
Drive End To Pulley 1st Groove Distance2.86 in / 72.74 mm
Pulley IncludedYes
Decoupled Or Clutch PulleyYes
Mounting TypeFront Mount
Regulator TypeInternal
External Regulator IncludedNo
Case ColorNatural
Fan TypeInternal
External Fan IncludedNo
Voltage12DC
Amperage Rating156A
Terminal Quantity3
Outside Pulley Diameter2.56 in / 65 mm
ClassificationOE
Pulley Groove Quantity5
Plug Type365
One Wire CapableYes
Plug Clock Rear View Main Mounting Ear at 6 O Clock1
Ground TypeNegative
Case MaterialAluminum
AC Service TapNo
FinishUncoated
Rotation DirectionClockwise (Right)
Grade TypeStandard Replacement
24 Months/Unlimited Miles Limited Warranty for Parts (plus Labor if installed by a GM dealer)
Please visit our warranty page on Gmparts.com for full warranty details.

