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Replacement and OEM Parts for 2003 GMC Sierra 1500 Idler Pulley

2003 GMC Sierra 1500 Idler Pulley

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2003 GMC Sierra 1500
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  • OEM 2003 GMC Sierra 1500 Serpentine Idler Pulley Diagram - 12669569
    View Related Parts

    OEM (Genuine) 2003 GMC Sierra 1500 Serpentine Idler Pulley

    PartNumber: 12669569
    OEM 2003 GMC Sierra 1500 Serpentine Idler Pulley - 12669569
    Product Specifications
    • Notes: 4.3 Liter, W/AC; 4.8, 5.3 & 6.0 Liter
    • Other Names: Idler Pulley, Serpentine Idler Pulley
    • Item Dimensions: 6.8 x 4.4 x 4.4 inches
    • Item Weight: 1.20 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 12555609, 12580771
    • Part Description: 2003 GMC Sierra 1500 Serpentine Idler Pulley
    More Info
    Vehicle Fitment
    • 2003 GMC Sierra 1500 | Base, C3, Denali, HT, Hybrid, SL, SLE, SLT, WT, XFE | 6 Cyl 4.3 L GAS, 8 Cyl 4.8 L FLEX, 8 Cyl 4.8 L GAS, 8 Cyl 5.3 L ELECTRIC/GAS, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L ELECTRIC/FLEX, 8 Cyl 6.0 L ELECTRIC/GAS, 8 Cyl 6.0 L GAS, 8 Cyl 6.2 L FLEX, 8 Cyl 6.2 L GAS
    $54.20 MSRP: $102.28
    You Save: $48.08 (48%)
  • Gates Drivealign Drive Belt Idler Pulley for 2003 GMC Sierra 1500 - 36299

    Gates® Drivealign Drive Belt Idler Pulley for 2003 GMC Sierra 1500

    PartNumber: 36299
    Product Specifications
    • Bearing Bore Inside Diameter 1: 17 mm
    • Contact Surface: Smooth/Backside
    • Material: Steel
    • Number of Grooves: 0
    • Number Of Pulleys: 1
    • Outside Diameter: 3.54"
    • Pulley 1 Flanged: No
    • UPC: 072053394078
    • Width: 31 mm
    • Part Description: 2003 GMC Sierra 1500 Drivealign Drive Belt Idler Pulley
    More Info
    Vehicle Fitment
    • 2003 GMC Sierra 1500 | All Trims | 6 Cyl 4.3L
    • 2003 GMC Sierra 1500 | All Trims | 8 Cyl 4.8L
    • 2003 GMC Sierra 1500 | All Trims | 8 Cyl 6.0L
    • 2003 GMC Sierra 1500 | All Trims | 8 Cyl 5.3L
    Show More
    $25.40
  • Dayco No Slack Light Duty New Style Idler Tensioner Pulley for 2003 GMC Sierra 1500 - 89006

    Dayco® No Slack Light Duty New Style Idler Tensioner Pulley for 2003 GMC Sierra 1500

    PartNumber: 89006
    Product Specifications
    • Bearing Inner Diameter 1: 17
    • Bearing Width: 12
    • Belt Type: Serpentine
    • Flat: Y
    • Material: Steel
    • Max Belt Width: 06 Rib
    • Number of Bearings: 1
    • Pulley Outside Diameter: 90
    • Pulley Width: 30
    • UPC: 038244156948
    • Part Description: 2003 GMC Sierra 1500 No Slack Light Duty New Style Idler Tensioner Pulley
    More Info
    Vehicle Fitment
    • 2003 GMC Sierra 1500 | All Trims | 6 Cyl 4.3L
    • 2003 GMC Sierra 1500 | All Trims | 8 Cyl 4.8L
    • 2003 GMC Sierra 1500 | All Trims | 8 Cyl 5.3L
    • 2003 GMC Sierra 1500 | All Trims | 8 Cyl 6.0L
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    $19.32
  • OEM 2003 GMC Sierra 1500 Serpentine Tensioner Diagram - 12580196
    View Related Parts

    OEM (Genuine) 2003 GMC Sierra 1500 Serpentine Tensioner

    PartNumber: 12580196
    OEM 2003 GMC Sierra 1500 Serpentine Tensioner - 12580196
    Product Specifications
    • Notes: 4.8, 5.3 & 6.0 Liter, AC Belt
    • Other Names: Belt Tensioner, Serpentine Tensioner, Tensioner
    • Item Dimensions: 4.8 x 3.1 x 2.7 inches
    • Item Weight: 1.10 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 12562065, 12565372
    • Part Description: 2003 GMC Sierra 1500 Serpentine Tensioner
    More Info
    Vehicle Fitment
    • 2003 GMC Sierra 1500 | Base, C3, Denali, HT, Hybrid, SL, SLE, SLT, WT | 8 Cyl 4.8 L GAS, 8 Cyl 5.3 L ELECTRIC/GAS, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L GAS, 8 Cyl 6.2 L GAS
    $55.60 MSRP: $104.91
    You Save: $49.31 (48%)
  • Four Seasons Drive Belt Idler Pulley for 2003 GMC Sierra 1500 - 45975

    Four Seasons® Drive Belt Idler Pulley for 2003 GMC Sierra 1500

    PartNumber: 45975
    Product Specifications
    • Notes: Smooth
    • Belt Type: Serpentine
    • Belt Width IN: 1.000
    • Belt Width MM: 25.400
    • Bore Dia. IN: .69
    • Color: Black
    • Groove Quantity: Smooth
    • I.D. MM: 17
    • Inside Diameter: 0.6875
    • Material: Steel
    • Meets / Exceeds OEM: Yes
    • Mount Hole Qty: 1
    • Mounting Hardware: Not Included
    • O.D. MM: 88.900
    • Outside Diameter: 3.500
    • Pulley Type: Back Idler
    • Pulley Width IN: 1
    • Pulley Width MM: 25.4
    • Style: Idler / Tensioner Pulley
    • UPC: 096361459755
    • Width: 25.4
    • Part Description: 2003 GMC Sierra 1500 Drive Belt Idler Pulley
    More Info
    Vehicle Fitment
    • 2003 GMC Sierra 1500 | All Trims | 6 Cyl 4.3L
    • 2003 GMC Sierra 1500 | All Trims | 8 Cyl 4.8L
    • 2003 GMC Sierra 1500 | All Trims | 8 Cyl 5.3L
    • 2003 GMC Sierra 1500 | All Trims | 8 Cyl 6.0L
    Show More
    $13.76
  • Gates Drivealign Drive Belt Idler Pulley for 2003 GMC Sierra 1500 - 36169

    Gates® Drivealign Drive Belt Idler Pulley for 2003 GMC Sierra 1500

    PartNumber: 36169
    Product Specifications
    • Bearing Bore Inside Diameter 1: 12 mm
    • Contact Surface: Smooth/Backside
    • Material: Steel
    • Number of Grooves: 0
    • Number Of Pulleys: 1
    • Outside Diameter: 60 mm
    • Pulley 1 Flanged: No
    • UPC: 072053392777
    • Width: 21.25 mm
    • Part Description: 2003 GMC Sierra 1500 Drivealign Drive Belt Idler Pulley
    More Info
    Vehicle Fitment
    • 2003 GMC Sierra 1500 | All Trims | 8 Cyl 4.8L
    • 2003 GMC Sierra 1500 | All Trims | 8 Cyl 5.3L
    • 2003 GMC Sierra 1500 | All Trims | 8 Cyl 6.0L
    Show More
    $24.88
  • Dayco No Slack Light Duty Idler Tensioner Pulley for 2003 GMC Sierra 1500 - 89542

    Dayco® No Slack Light Duty Idler Tensioner Pulley for 2003 GMC Sierra 1500

    PartNumber: 89542
    Product Specifications
    • Notes: Steel Pulley, 12mm Bearing ID, Fits OE Tensioner;Steel Pulley, 12mm Bearing ID
    • Bearing Inner Diameter 1: 12
    • Bearing Width: 8
    • Belt Type: Serpentine
    • Flat: Y
    • Material: Steel
    • Max Belt Width: 04 Rib
    • Number of Bearings: 1
    • Pulley Outside Diameter: 60
    • Pulley Width: 21
    • UPC: 036687843036
    • Part Description: 2003 GMC Sierra 1500 No Slack Light Duty Idler Tensioner Pulley
    More Info
    Vehicle Fitment
    • 2003 GMC Sierra 1500 | All Trims | 8 Cyl 4.8L
    • 2003 GMC Sierra 1500 | All Trims | 8 Cyl 5.3L
    • 2003 GMC Sierra 1500 | All Trims | 8 Cyl 6.0L
    Show More
    $21.65
  • OEM 2003 GMC Sierra 1500 Serpentine Idler Pulley Diagram - 12580774
    View Related Parts

    OEM (Genuine) 2003 GMC Sierra 1500 Serpentine Idler Pulley

    PartNumber: 12580774
    OEM 2003 GMC Sierra 1500 Serpentine Idler Pulley - 12580774
    Product Specifications
    • Notes: 4.3 Liter, W/O AC
    • Other Names: Idler Pulley, Serpentine Idler Pulley
    • Item Dimensions: 3.0 x 3.2 x 3.2 inches
    • Item Weight: 0.60 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 12556612
    • Part Description: 2003 GMC Sierra 1500 Serpentine Idler Pulley
    More Info
    Vehicle Fitment
    • 2003 GMC Sierra 1500 | Base, HT, Hybrid, SL, SLE, SLT, WT | 6 Cyl 4.3 L GAS, 8 Cyl 5.3 L ELECTRIC/GAS, 8 Cyl 6.0 L ELECTRIC/FLEX, 8 Cyl 6.0 L ELECTRIC/GAS
    $48.00 MSRP: $90.59
    You Save: $42.59 (48%)
  • Four Seasons Drive Belt Idler Pulley for 2003 GMC Sierra 1500 - 45971

    Four Seasons® Drive Belt Idler Pulley for 2003 GMC Sierra 1500

    PartNumber: 45971
    Product Specifications
    • Belt Type: Serpentine
    • Belt Width IN: .88
    • Belt Width MM: 22.4
    • Bore Dia. IN: .67
    • Color: Black
    • Groove Quantity: 6
    • I.D. MM: 17
    • Inside Diameter: 0.671875
    • Material: Plastic
    • Meets / Exceeds OEM: Yes
    • Mount Hole Qty: 1
    • Mounting Hardware: Not Included
    • O.D. MM: 76.0
    • Outside Diameter: 2.99
    • Pulley Type: Idler Pulley
    • Pulley Width IN: 1.13
    • Pulley Width MM: 28.7
    • Style: Idler / Tensioner Pulley
    • UPC: 096361459717
    • Width: 28.7
    • Part Description: 2003 GMC Sierra 1500 Drive Belt Idler Pulley
    More Info
    Vehicle Fitment
    • 2003 GMC Sierra 1500 | All Trims | 8 Cyl 4.8L
    • 2003 GMC Sierra 1500 | All Trims | 8 Cyl 5.3L
    • 2003 GMC Sierra 1500 | All Trims | 8 Cyl 6.0L
    Show More
    $12.39
  • Gates Drivealign Grooved Drive Belt Idler Pulley for 2003 GMC Sierra 1500 - 38008

    Gates® Drivealign Grooved Drive Belt Idler Pulley for 2003 GMC Sierra 1500

    PartNumber: 38008
    Product Specifications
    • Notes: w/o AC
    • Bearing Bore Inside Diameter 1: 17 mm
    • Contact Surface: V-Ribbed Grooved
    • Material: Thermoplastic
    • Number of Grooves: 6
    • Number Of Pulleys: 1
    • Outside Diameter: 2.76"
    • Pulley 1 Flanged: Yes
    • UPC: 072053284232
    • Width: 25 mm
    • Part Description: 2003 GMC Sierra 1500 Drivealign Grooved Drive Belt Idler Pulley
    More Info
    Vehicle Fitment
    • 2003 GMC Sierra 1500 | All Trims | 6 Cyl 4.3L
    $15.85
  • Dayco No Slack Light Duty Idler Tensioner Pulley for 2003 GMC Sierra 1500 - 89550

    Dayco® No Slack Light Duty Idler Tensioner Pulley for 2003 GMC Sierra 1500

    PartNumber: 89550
    Product Specifications
    • Notes: Plastic Pulley, 17mm Bearing ID;Plastic Pulley, 17mm Bearing ID, Fits Dayco Tensioner
    • Bearing Inner Diameter 1: 17
    • Bearing Width: 12
    • Belt Type: Serpentine
    • Flat: Y
    • Material: Polymer
    • Max Belt Width: 04 Rib
    • Number of Bearings: 1
    • Pulley Outside Diameter: 60
    • Pulley Width: 20
    • UPC: 036687845047
    • Part Description: 2003 GMC Sierra 1500 No Slack Light Duty Idler Tensioner Pulley
    More Info
    Vehicle Fitment
    • 2003 GMC Sierra 1500 | All Trims | 8 Cyl 4.8L
    • 2003 GMC Sierra 1500 | All Trims | 8 Cyl 5.3L
    • 2003 GMC Sierra 1500 | All Trims | 8 Cyl 6.0L
    Show More
    $15.96
  • Four Seasons Drive Belt Idler Pulley for 2003 GMC Sierra 1500 - 45996

    Four Seasons® Drive Belt Idler Pulley for 2003 GMC Sierra 1500

    PartNumber: 45996
    Product Specifications
    • Notes: Grooved; w/o AC
    • Belt Type: Serpentine
    • Belt Width IN: 0.875
    • Belt Width MM: 22.225
    • Bore Dia. IN: .67
    • Color: Black
    • Groove Quantity: 6
    • I.D. MM: 17
    • Inside Diameter: 0.671875
    • Material: Plastic
    • Meets / Exceeds OEM: Yes
    • Mount Hole Qty: 1
    • Mounting Hardware: Not Included
    • O.D. MM: 69.850
    • Outside Diameter: 2.750
    • Pulley Type: Idler Pulley
    • Pulley Width IN: 1.11
    • Pulley Width MM: Idler / Tensioner Pulley
    • Style: Idler / Tensioner Pulley
    • UPC: 096361459960
    • Width: 28.6
    • Part Description: 2003 GMC Sierra 1500 Drive Belt Idler Pulley
    More Info
    Vehicle Fitment
    • 2003 GMC Sierra 1500 | All Trims | 6 Cyl 4.3L
    $13.54
  • Gates Drivealign Drive Belt Idler Pulley for 2003 GMC Sierra 1500 - 38009

    Gates® Drivealign Drive Belt Idler Pulley for 2003 GMC Sierra 1500

    PartNumber: 38009
    Product Specifications
    • Bearing Bore Inside Diameter 1: 17 mm
    • Contact Surface: V-Ribbed Grooved
    • Material: Thermoplastic
    • Number of Grooves: 6
    • Number Of Pulleys: 1
    • Outside Diameter: 2.99"
    • Pulley 1 Flanged: Yes
    • UPC: 072053284256
    • Width: 25 mm
    • Part Description: 2003 GMC Sierra 1500 Drivealign Drive Belt Idler Pulley
    More Info
    Vehicle Fitment
    • 2003 GMC Sierra 1500 | All Trims | 8 Cyl 4.8L
    • 2003 GMC Sierra 1500 | All Trims | 8 Cyl 5.3L
    • 2003 GMC Sierra 1500 | All Trims | 8 Cyl 6.0L
    Show More
    $15.36
  • Dayco No Slack Light Duty Idler Tensioner Pulley for 2003 GMC Sierra 1500 - 89015

    Dayco® No Slack Light Duty Idler Tensioner Pulley for 2003 GMC Sierra 1500

    PartNumber: 89015
    Product Specifications
    • Notes: w/o AC
    • Bearing Inner Diameter 1: 17
    • Bearing Width: 12
    • Belt Type: Serpentine
    • Flat: N
    • Groove Quantity: 6
    • Material: Polymer
    • Max Belt Width: 06 Rib
    • Number of Bearings: 1
    • Pulley Outside Diameter: 70
    • Pulley Width: 28.3
    • UPC: 036687135353
    • Part Description: 2003 GMC Sierra 1500 No Slack Light Duty Idler Tensioner Pulley
    More Info
    Vehicle Fitment
    • 2003 GMC Sierra 1500 | All Trims | 6 Cyl 4.3L
    $15.18
  • Dayco No Slack Light Duty Idler Tensioner Pulley for 2003 GMC Sierra 1500 - 89009

    Dayco® No Slack Light Duty Idler Tensioner Pulley for 2003 GMC Sierra 1500

    PartNumber: 89009
    Product Specifications
    • Bearing Inner Diameter 1: 17
    • Bearing Width: 12
    • Belt Type: Serpentine
    • Flat: N
    • Groove Quantity: 6
    • Material: Polymer
    • Max Belt Width: 06 Rib
    • Number of Bearings: 1
    • Pulley Outside Diameter: 76
    • Pulley Width: 28.7
    • UPC: 038244156979
    • Part Description: 2003 GMC Sierra 1500 No Slack Light Duty Idler Tensioner Pulley
    More Info
    Vehicle Fitment
    • 2003 GMC Sierra 1500 | All Trims | 8 Cyl 4.8L
    • 2003 GMC Sierra 1500 | All Trims | 8 Cyl 5.3L
    • 2003 GMC Sierra 1500 | All Trims | 8 Cyl 6.0L
    Show More
    $13.50