{
    "lazyNodes": false,
    "abFitnotesFlag": false,
    "abCrawlReviews": false,
    "productOptionsCookie": false,
    "orderDelayFlag": false,
    "skipSessionCookie": false,
    "covidMessage": false,
    "fullTitleCookie": false,
    "nrLoggerCookie": false,
    "checkoutReviewCookie": false,
    "productOptionSeqCookie": false,
    "maintenanceFlag": false,
    "bufferETACookie": false,
    "multiShippingDiscountFlag": false,
    "newFitmentFlag": false,
    "surveyOptInFlag": false,
    "crossSellFlag": false,
    "skuMappingFlag": false,
    "paySplitCookie": false,
    "callDisableFlag": false,
    "zipPaymentFlag": "u",
    "hassleFreeReturn": false,
    "lifetimeReplacement": false,
    "cpn_off": false
}
2003 GMC Sierra 3500

2003 GMC Sierra 3500 Serpentine Belts

Refine by:

Shop Catalog

Showing 1 - 15 of 65 results
Display item:
15
30
45
Sort by:
Professional Series Serpentine Belt - Direct Fit, Sold individually
Part Number: AC6K956
Guaranteed to Fit
$35.99
Vehicle Fitment
  • 2003 GMC Sierra 3500 SLE 8 Cyl 8.1L Truck, With 145 Amp. Alternator
  • 2003 GMC Sierra 3500 SLT 8 Cyl 8.1L Truck, With 145 Amp. Alternator
  • 2003 GMC Sierra 3500 Base 8 Cyl 8.1L Truck, With 145 Amp. Alternator
Product Details
Notes : Fan V-ribbed belt; 96-1/8 in. belt O.C.Warranty : Lifetime AC Delco limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : Professional SeriesInterchange Part Number : REPC316206Replaces OE Number : 88932793Product Fit : Direct Fit
Professional Series Serpentine Belt - Direct Fit, Sold individually
Part Number: AC6K950
Guaranteed to Fit
$44.49
Vehicle Fitment
  • 2003 GMC Sierra 3500 SLE 8 Cyl 8.1L Truck
  • 2003 GMC Sierra 3500 SLT 8 Cyl 8.1L Truck
  • 2003 GMC Sierra 3500 Base 8 Cyl 8.1L Truck
Product Details
Notes : Fan belt; 0.81 in. x 95.63 in. serpentine fan belt; 95-5/8 in. belt O.C.Warranty : Lifetime AC Delco limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : Professional SeriesInterchange Part Number : REPG316202Replaces OE Number : 88932792Product Fit : Direct Fit
GM Original Equipment Series Serpentine Belt - Direct Fit, Sold individually
Part Number: AC12637204
Guaranteed to Fit
$71.49
Vehicle Fitment
  • 2003 GMC Sierra 3500 SLT 8 Cyl 6.0L Fan, Water Pump, Alternator and Power Steering (145 AMP(KG3), SEO 145 AMP GEN(8C6))
  • 2003 GMC Sierra 3500 SLE 8 Cyl 6.0L Fan, Water Pump, Alternator and Power Steering (145 AMP(KG3), SEO 145 AMP GEN(8C6))
  • 2003 GMC Sierra 3500 Base 8 Cyl 6.0L Fan, Water Pump, Alternator and Power Steering (145 AMP(KG3), SEO 145 AMP GEN(8C6))
Product Details
Notes : Fan, water pump, generator, and power steering pump beltWarranty : Lifetime AC Delco limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : GM Original Equipment SeriesProduct Fit : Direct Fit
Professional Series Serpentine Belt - Direct Fit, Sold individually
Part Number: AC4K378
Guaranteed to Fit
$25.49
Vehicle Fitment
  • 2003 GMC Sierra 3500 SLT 8 Cyl 6.0L CNG
  • 2003 GMC Sierra 3500 SLE 8 Cyl 6.0L GAS
  • 2003 GMC Sierra 3500 Base 8 Cyl 6.0L GAS
Product Details
Location : Air ConditioningNotes : Fan beltWarranty : Lifetime AC Delco limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Outside Circumference : 38.45 in.Series : Professional SeriesTop Width : 0.56 in.Effective Length : 37.89 in.Replaces OE Number : 88932529Rib Count : 4Product Fit : Direct Fit
Serpentine Belt - V-belt, Direct Fit, Sold individually
Part Number: GATK061360
Guaranteed to Fit
$34.99
Vehicle Fitment
  • 2003 GMC Sierra 3500 SLE 8 Cyl 6.6L Without V.P.
  • 2003 GMC Sierra 3500 Base 8 Cyl 6.6L Without V.P.
  • 2003 GMC Sierra 3500 SLT 8 Cyl 6.6L Without V.P.
Product Details
Warranty : Lifetime Gates limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Outside Circumference : 136.5 in.Top Width : 0.81 in.Type : V-beltEffective Length : 135.98 in.Product Fit : Direct Fit
Specialty Series Serpentine Belt - Serpentine belt, Direct Fit, Sold individually
Part Number: ACK061195HD
Guaranteed to Fit
$46.99
Vehicle Fitment
  • 2003 GMC Sierra 3500 SLE 8 Cyl 6.6L Truck, With 145 Amperes Alternator
  • 2003 GMC Sierra 3500 Base 8 Cyl 6.6L Truck, With 145 Amperes Alternator
  • 2003 GMC Sierra 3500 SLT 8 Cyl 6.6L Truck, With 145 Amperes Alternator
Product Details
Warranty : Lifetime AC Delco limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : Specialty SeriesType : Serpentine beltReplaces OE Number : 19163505Product Fit : Direct Fit
Specialty Series Serpentine Belt - Serpentine belt, Direct Fit, Sold individually
Part Number: ACK061360HD
Guaranteed to Fit
$49.49
Vehicle Fitment
  • 2003 GMC Sierra 3500 SLE 8 Cyl 6.6L Truck, With Dual 105 Amp. Alternators, Without Vacuum Pump
  • 2003 GMC Sierra 3500 Base 8 Cyl 6.6L Truck, With Dual 105 Amp. Alternators, Without Vacuum Pump
  • 2003 GMC Sierra 3500 SLT 8 Cyl 6.6L Truck, With Dual 105 Amp. Alternators, Without Vacuum Pump
Product Details
Notes : Fleetrunner heavy duty; V-ribbed; Reinforced EPDM rubber materialWarranty : Lifetime AC Delco limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Top Width : 0.81 in.Effective Length : 135.98 in.Replaces OE Number : 19163506Rib Count : 6Product Fit : Direct FitOutside Circumference : 136.5 in.Series : Specialty SeriesType : Serpentine belt
Specialty Series Serpentine Belt - Direct Fit, Sold individually
Part Number: ACK061187HD
Guaranteed to Fit
$51.49
Vehicle Fitment
  • 2003 GMC Sierra 3500 SLE 8 Cyl 6.6L Truck
  • 2003 GMC Sierra 3500 Base 8 Cyl 6.6L Truck
  • 2003 GMC Sierra 3500 SLT 8 Cyl 6.6L Truck
Product Details
Warranty : Lifetime AC Delco limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : Specialty SeriesProduct Fit : Direct Fit
Serpentine Belt - Direct Fit, Sold individually
Part Number: CTT4061195
Guaranteed to Fit
$40.99
Vehicle Fitment
  • 2003 GMC Sierra 3500 SLE 8 Cyl 6.6L DIESEL, Accessory Drive; With 145 Amp Alt; With Vacuum Pump
  • 2003 GMC Sierra 3500 Base 8 Cyl 6.6L DIESEL, Accessory Drive; With 145 Amp Alt; With Vacuum Pump
  • 2003 GMC Sierra 3500 SLT 8 Cyl 6.6L DIESEL, Accessory Drive; With 145 Amp Alt; With Vacuum Pump
Product Details
Warranty : 5 Year Continental Limited WarrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Promotions : European Vehicle PartsTop Width : 0.83 in.Effective Length : 119.5 in.Rib Count : 6Product Fit : Direct Fit
Serpentine Belt - V-belt, Direct Fit, Sold individually
Part Number: GATK061187
Guaranteed to Fit
$34.99
Vehicle Fitment
  • 2003 GMC Sierra 3500 SLE 8 Cyl 6.6L with V.P.
  • 2003 GMC Sierra 3500 Base 8 Cyl 6.6L with V.P.
  • 2003 GMC Sierra 3500 SLT 8 Cyl 6.6L with V.P.
Product Details
Warranty : Lifetime Gates limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Outside Circumference : 119.31 in.Top Width : 0.81 in.Type : V-beltEffective Length : 118.74 in.Product Fit : Direct Fit
Professional Series Serpentine Belt - Direct Fit, Sold individually
Part Number: AC6K1177
Guaranteed to Fit
$30.99
Vehicle Fitment
  • 2003 GMC Sierra 3500 SLE 8 Cyl 6.6L Truck, With 105 Amperes Alternator, Without V.P.
  • 2003 GMC Sierra 3500 Base 8 Cyl 6.6L Truck, With 105 Amperes Alternator, Without V.P.
  • 2003 GMC Sierra 3500 SLT 8 Cyl 6.6L Truck, With 105 Amperes Alternator, Without V.P.
Product Details
Notes : Fan beltWarranty : Lifetime AC Delco limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : Professional SeriesReplaces OE Number : 89028860Product Fit : Direct Fit
Professional Series Serpentine Belt - Fan belt, Direct Fit, Sold individually
Part Number: AC4K398
Guaranteed to Fit
$22.49
Vehicle Fitment
  • 2003 GMC Sierra 3500 Base 8 Cyl 8.1L Truck
  • 2003 GMC Sierra 3500 SLE 8 Cyl 8.1L Truck
  • 2003 GMC Sierra 3500 SLT 8 Cyl 8.1L Truck
Product Details
Notes : Fan beltWarranty : Lifetime AC Delco limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : Professional SeriesType : Fan beltProduct Fit : Direct Fit
Serpentine Belt - V-belt, Direct Fit, Sold individually
Part Number: GATK061195
Guaranteed to Fit
$26.49
Vehicle Fitment
  • 2003 GMC Sierra 3500 SLE 8 Cyl 6.6L
  • 2003 GMC Sierra 3500 Base 8 Cyl 6.6L
  • 2003 GMC Sierra 3500 SLT 8 Cyl 6.6L
Product Details
Warranty : Lifetime Gates limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Outside Circumference : 120.1 in.Top Width : 0.81 in.Type : V-beltEffective Length : 119.53 in.Product Fit : Direct Fit
Century Micro-V Series Serpentine Belt - V-belt, Direct Fit, Sold individually
Part Number: GATK060923
Guaranteed to Fit
$34.99
Vehicle Fitment
  • 2003 GMC Sierra 3500 SLT 8 Cyl 6.0L
  • 2003 GMC Sierra 3500 SLE 8 Cyl 6.0L
  • 2003 GMC Sierra 3500 Base 8 Cyl 6.0L
Product Details
Notes : V-ribbed beltWarranty : Lifetime Gates limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Outside Circumference : 92.9 in.Series : Century Micro-V SeriesTop Width : 0.81 in.Type : V-beltEffective Length : 92.34 in.Product Fit : Direct Fit
GM Original Equipment Series Serpentine Belt - Direct Fit, Sold individually
Part Number: AC12642433
Guaranteed to Fit
$50.49
Vehicle Fitment
  • 2003 GMC Sierra 3500 SLE 8 Cyl 6.6L <ul><li>Fan - 105 AMP(K68), CALIF EMIS LEV(NC1), FEDERAL EMIS(NF4)</li><li>Fan - 145 AMP(KG3), FED EMIS SYS(NF2)</li></ul>
  • 2003 GMC Sierra 3500 Base 8 Cyl 6.6L <ul><li>Fan - 105 AMP(K68), CALIF EMIS LEV(NC1), FEDERAL EMIS(NF4)</li><li>Fan - 145 AMP(KG3), FED EMIS SYS(NF2)</li></ul>
  • 2003 GMC Sierra 3500 SLT 8 Cyl 6.6L <ul><li>Fan - 105 AMP(K68), CALIF EMIS LEV(NC1), FEDERAL EMIS(NF4)</li><li>Fan - 145 AMP(KG3), FED EMIS SYS(NF2)</li></ul>
Product Details
Notes : Fan beltWarranty : Lifetime AC Delco limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : GM Original Equipment SeriesProduct Fit : Direct Fit
Page 1 of 5 | Showing 1 - 15 of 65 results

Top Rated Products

This replacement belt fits and runs quietly Thank you for correcting the problem withSee More
Gary B J.
VERIFIED PURCHASER

Popular Products

Product Questions & Answers

Q:Is this belt for a dual alternator 2013 GMC 6.6 duramax?
Jamey R.
A:BEST ANSWERHi Jamey, thank you for reaching out. No, it is not. You can click the link below to order the correct belt. Have a good one! https://www.carparts.com/serpentine-belt/ac-delco/ac6k1373?can=cpab2020_csqa_20230506 Show less
Andrew B.
 
1 Question, 1 AnswerView all Q&As >

Helpful Automotive Resources

Power Steering Not Working: Why This Happens and What to Do
Power Steering Not Working: Why This Happens and What to DoSometimes the power steering works just fine but may become noisy, either because of loose or slipping belts, bad bearings, or air in the hydraulic system – this air problem can happen without warning even if  the power steering fluid isn’t low and hasn’t been drained. The noise can be