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2003 GMC Sierra 3500
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Alternators, Batteries & Starters
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11 Products found

7 Q&A for Alternator Repair
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  • OEM (Genuine) 2003 GMC Sierra 3500 Alternator

    PartNumber: 19244731
    OEM 2003 GMC Sierra 3500 Alternator - 19244731
    Product Specifications
    • Notes: 4.8, 5.3, 6.0 & 8.1 Liter, 105 Amp; 6.6 Liter Turbo Diesel, 105 Amp
    • Other Names: Alternator
    • Item Dimensions: 9.4 x 7.9 x 7.5 inches
    • Item Weight: 18.40 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 10464481, 19151898
    • Part Description: 2003 GMC Sierra 3500 Alternator
    More Info
    Vehicle Fitment
    • 2003 GMC Sierra 3500 | Base, SL, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL, 8 Cyl 8.1 L GAS
    $282.20 MSRP: $511.62
    You Save: $229.42 (45%)
  • TYC Alternator for 2003 GMC Sierra 3500 - 2-08292

    TYC® Alternator for 2003 GMC Sierra 3500

    PartNumber: 2-08292
    Product Specifications
    • Notes: OPT; Reg Position: Int; Fan Position: Int; Pwr Generation (Amps): 145A
    • Fan Position: Internal
    • OE Manufacturer: DE
    • OE Part Number: 10464476
    • Power Generation (amps): 145A
    • Pully Wheel Design: Regular
    • Pully Wheel Grooves: 6
    • Regulator Position: Internal
    • Rotation Direction: CW
    • UPC: 762405281490
    • Part Description: 2003 GMC Sierra 3500 Alternator
    More Info
    Vehicle Fitment
    • 2003 GMC Sierra 3500 | All Trims | 8 Cyl 6.0L
    • 2003 GMC Sierra 3500 | All Trims | 8 Cyl 6.6L
    • 2003 GMC Sierra 3500 | All Trims | 8 Cyl 8.1L
    Show More
    $119.60
  • Remy Remanufactured Alternator for 2003 GMC Sierra 3500 - 22054

    Remy® Remanufactured Alternator for 2003 GMC Sierra 3500

    PartNumber: 22054
    Product Specifications
    • Notes: w/144mm (5 11/16") Dia Alt Case; 145 Amps
    • Amp Rating: 145
    • Fan Type: Internal
    • New or Remanufactured: Remanufactured
    • OE Manufacturer: Delco/Delphi
    • One Wire Capable: NO
    • Pulley Belt Type: Serpentine
    • Pulley Groove Quantity: 6
    • Pulley Included: Yes
    • Pulley Outside Diameter: 57
    • Regulator Type: Internal
    • Rotation Direction: Clockwise
    • UPC: 090244220548
    • Voltage [V]: 12
    • Part Description: 2003 GMC Sierra 3500 Remanufactured Alternator
    More Info
    Vehicle Fitment
    • 2003 GMC Sierra 3500 | All Trims | 8 Cyl 6.0L
    • 2003 GMC Sierra 3500 | All Trims | 8 Cyl 6.6L
    • 2003 GMC Sierra 3500 | All Trims | 8 Cyl 8.1L
    Show More
    $110.52
  • Quality-Built Alternator Remanufactured for 2003 GMC Sierra 3500 - 8247603

    Quality-Built® Alternator Remanufactured for 2003 GMC Sierra 3500

    PartNumber: 8247603
    Product Specifications
    • Notes: w/Delco 105 amp alt.
    • Amps: 105 Amps
    • Clock: 11:30
    • Fan: Internal
    • Manufacturer: Delco
    • Pulley: 6 Groove Serpentine
    • Regulator: Internal
    • Rotation: Clockwise
    • Volts: 12 Volts
    • Part Description: 2003 GMC Sierra 3500 Alternator Remanufactured
    More Info
    Vehicle Fitment
    • 2003 GMC Sierra 3500 | All Trims | 8 Cyl 6.0L
    • 2003 GMC Sierra 3500 | All Trims | 8 Cyl 6.6L
    • 2003 GMC Sierra 3500 | All Trims | 8 Cyl 8.1L
    Show More
    $53.09
  • OEM (Genuine) 2003 GMC Sierra 3500 Alternator

    PartNumber: 19244751
    OEM 2003 GMC Sierra 3500 Alternator - 19244751
    Product Specifications
    • Notes: 4.8, 5.3, 6.0 & 8.1 Liter, 145 Amp; 6.6 Liter Turbo Diesel, 145 Amp
    • Other Names: Alternator
    • Item Dimensions: 9.2 x 8.0 x 7.4 inches
    • Item Weight: 16.70 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 20989650, 22781130, 19151921, 10464476, 15200109, 15263859
    • Part Description: 2003 GMC Sierra 3500 Alternator
    More Info
    Vehicle Fitment
    • 2003 GMC Sierra 3500 | Base, SL, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL, 8 Cyl 8.1 L GAS
    $331.66 MSRP: $614.91
    You Save: $283.25 (47%)
  • Remy Remanufactured Alternator for 2003 GMC Sierra 3500 - 21798

    Remy® Remanufactured Alternator for 2003 GMC Sierra 3500

    PartNumber: 21798
    Product Specifications
    • Notes: w/137mm (5 3/8") Dia Alt Case; 105 Amps
    • Amp Rating: 105
    • Fan Type: Internal
    • New or Remanufactured: Remanufactured
    • OE Manufacturer: Delco/Delphi
    • One Wire Capable: NO
    • Pulley Belt Type: Serpentine
    • Pulley Groove Quantity: 6
    • Pulley Included: Yes
    • Pulley Outside Diameter: 56
    • Regulator Type: Internal
    • Rotation Direction: Clockwise
    • UPC: 090244217982
    • Voltage [V]: 12
    • Part Description: 2003 GMC Sierra 3500 Remanufactured Alternator
    More Info
    Vehicle Fitment
    • 2003 GMC Sierra 3500 | All Trims | 8 Cyl 6.0L
    • 2003 GMC Sierra 3500 | All Trims | 8 Cyl 6.6L
    • 2003 GMC Sierra 3500 | All Trims | 8 Cyl 8.1L
    Show More
    $67.83
  • Quality-Built Alternator Remanufactured for 2003 GMC Sierra 3500 - 8292603

    Quality-Built® Alternator Remanufactured for 2003 GMC Sierra 3500

    PartNumber: 8292603
    Product Specifications
    • Notes: optional, w/145 amp alt.
    • Amps: 145 Amps
    • Clock: 3:00
    • Fan: Internal
    • Manufacturer: Delco
    • Pulley: 6 Groove Serpentine
    • Regulator: Internal
    • Rotation: Clockwise
    • Volts: 12 Volts
    • Part Description: 2003 GMC Sierra 3500 Alternator Remanufactured
    More Info
    Vehicle Fitment
    • 2003 GMC Sierra 3500 | All Trims | 8 Cyl 6.6L
    • 2003 GMC Sierra 3500 | All Trims | 8 Cyl 6.0L
    • 2003 GMC Sierra 3500 | All Trims | 8 Cyl 8.1L
    Show More
    $107.48
  • Remy Alternator for 2003 GMC Sierra 3500 - 91653

    Remy® Alternator for 2003 GMC Sierra 3500

    PartNumber: 91653
    Product Specifications
    • Notes: w/144mm (5 11/16") Dia Alt Case; 145 Amps
    • Amp Rating: 145
    • Fan Type: Internal
    • New or Remanufactured: New
    • OE Manufacturer: Delco/Delphi
    • One Wire Capable: NO
    • Pulley Belt Type: Serpentine
    • Pulley Groove Quantity: 6
    • Pulley Included: Yes
    • Pulley Outside Diameter: 56
    • Regulator Type: Internal
    • Rotation Direction: Clockwise
    • Voltage [V]: 12
    • Part Description: 2003 GMC Sierra 3500 Alternator
    More Info
    Vehicle Fitment
    • 2003 GMC Sierra 3500 | All Trims | 8 Cyl 6.0L
    • 2003 GMC Sierra 3500 | All Trims | 8 Cyl 6.6L
    • 2003 GMC Sierra 3500 | All Trims | 8 Cyl 8.1L
    Show More
    $120.09
  • Quality-Built Alternator New for 2003 GMC Sierra 3500 - 8247603N

    Quality-Built® Alternator New for 2003 GMC Sierra 3500

    PartNumber: 8247603N
    Product Specifications
    • Notes: w/Delco 105 amp alt.
    • Amps: 105 Amps
    • Clock: 11:30
    • Fan: Internal
    • Manufacturer: Delco
    • Pulley: 6 Groove Serpentine
    • Regulator: Internal
    • Rotation: Clockwise
    • Volts: 12 Volts
    • Part Description: 2003 GMC Sierra 3500 Alternator New
    More Info
    Vehicle Fitment
    • 2003 GMC Sierra 3500 | All Trims | 8 Cyl 6.0L
    • 2003 GMC Sierra 3500 | All Trims | 8 Cyl 6.6L
    • 2003 GMC Sierra 3500 | All Trims | 8 Cyl 8.1L
    Show More
    $102.07
  • Remy Alternator for 2003 GMC Sierra 3500 - 91602

    Remy® Alternator for 2003 GMC Sierra 3500

    PartNumber: 91602
    Product Specifications
    • Notes: w/137mm (5 3/8") Dia Alt Case; 105 Amps
    • Amp Rating: 105
    • Fan Type: Internal
    • New or Remanufactured: New
    • OE Manufacturer: Delco/Delphi
    • One Wire Capable: NO
    • Pulley Belt Type: Serpentine
    • Pulley Groove Quantity: 6
    • Pulley Included: Yes
    • Pulley Outside Diameter: 56
    • Regulator Type: Internal
    • Rotation Direction: Clockwise
    • Voltage [V]: 11
    • Part Description: 2003 GMC Sierra 3500 Alternator
    More Info
    Vehicle Fitment
    • 2003 GMC Sierra 3500 | All Trims | 8 Cyl 6.0L
    • 2003 GMC Sierra 3500 | All Trims | 8 Cyl 6.6L
    • 2003 GMC Sierra 3500 | All Trims | 8 Cyl 8.1L
    Show More
    $119.12
  • Quality-Built Alternator New for 2003 GMC Sierra 3500 - 8292603N

    Quality-Built® Alternator New for 2003 GMC Sierra 3500

    PartNumber: 8292603N
    Product Specifications
    • Notes: optional, w/145 amp alt.
    • Amps: 130 Amps
    • Clock: 2:30
    • Fan: Internal
    • Manufacturer: Bosch
    • Pulley: 6 Groove Serpentine
    • Regulator: Internal
    • Rotation: Clockwise
    • Volts: 12 Volts
    • Part Description: 2003 GMC Sierra 3500 Alternator New
    More Info
    Vehicle Fitment
    • 2003 GMC Sierra 3500 | All Trims | 8 Cyl 6.6L
    • 2003 GMC Sierra 3500 | All Trims | 8 Cyl 6.0L
    • 2003 GMC Sierra 3500 | All Trims | 8 Cyl 8.1L
    Show More
    $161.61

FAQ for Alternator Repair

Q: How to install the generator bracket?
A:
You can install the generator bracket, the generator bracket bolts, install the power steering pump, and the generator.
By Bob
GM Specialist
28/10/2022
Q: How to remove the generator cable?
A:
You can disconnect the negative battery cable, remove the engine sight shield, and the generator cable from the generator, open the positive cable junction block, and remove the generator cable nut, and the generator cable from the junction block.
By Bob
GM Specialist
28/10/2022
Q: How to install the generator?
A:
You can the generator, the generator bolts, install the generator cable to the generator, connect the generator electrical connector, and install the accessory drive belt.
By Bob
GM Specialist
28/10/2022
Q: How to remove the generator?
A:
You can disconnect the negative battery cable, remove the accessory drive belt, and the engine sight shield, disconnect the generator electrical connector, and remove the generator cable from the generator, the generator bolts, and the generator.
By Bob
GM Specialist
28/10/2022
Q: What is the recommended bolt torque for the fuel rail outlet pipe?
A:
The recommended bolt torque is 50 N.m (37 lb-ft).
By Bob
GM Specialist
28/10/2022
Q: How to remove the generator bracket?
A:
You can remove the battery cable junction block bracket bolts, the generator, the power steering pump, the generator bracket bolts, and the generator bracket.
By Bob
GM Specialist
28/10/2022
Q: How to install the generator cable?
A:
You can install the generator cable to the junction block, and the generator cable nut, install the generator cable to the generator and connect the negative battery cable.
By Bob
GM Specialist
28/10/2022
See more FAQs (2)