{
    "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
}
2021 Ford Mustang
1
0
Price Match Guarantee
60-Day Returns
Lifetime Replacement
Price Match Guarantee
60-Day Returns
Lifetime Replacement
2021 Ford Mustang

2021 Ford Mustang Accessory Belt Idler Pulleys

Refine by:

Shop Catalog

Showing 1 - 15 of 17 results
Display item:
15
30
45
Sort by:
Accessory Belt Idler Pulley, 17 mm ID, 76 mm Pulley Diameter, 31 mm Pulley Width, 20 mm Max Belt Width, Steel Material, Serpentine Type, Flat
Replacement
Accessory Belt Idler Pulley, 17 mm ID, 76 mm Pulley Diameter, 31 mm Pulley Width, 20 mm Max Belt Width, Steel Material, Serpentine Type, Flat
Part Number: REPC313813
Guaranteed to Fit
$9.72
Vehicle Fitment
  • 2021 Ford Mustang GT Premium 8 Cyl 5.0L
  • 2021 Ford Mustang GT 8 Cyl 5.0L
  • 2021 Ford Mustang Mach 1 8 Cyl 5.0L
Product Details
Notes : 1 bearing; 17 mm ID; 76 mm pulley diameter; 31 mm pulley width; 20 mm max belt width; Steel material; Serpentine type; FlatWarranty : 1-year Replacement unlimited-mileage warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemicals including Lead, 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.

Interchange Part Number : 419610, 5019, 5979, 36491, 38043, 38058, 45019, 45979, 49011, 49017, 49039, 49095, 50037, 89005, 89007, 89098, 154683, 154957, 154968, 154970, 4854092, 10069950, 10129560, 12557682, 12557838, 12564401, 12564506, 12569736, 12582004, 12587295, 24501383, 24502735, 24504818, 24506756, 24508594, 24508595, 24577515, 53010230, 8100699500, 8971064550, 1L2Z6B209AA, 1L5Z6B209AA, 3C2Z6B209BA, 3M4Z8678AB, 4792581AA, 4792581AB, 4854092AC, 4861533AB, 4L8Z6B209AA, 53013324AA, 53032129AA, 53032645AAReplaces OE Number : 5019, 5979, 36491, 38043, 38058, 45019, 45979, 49011, 49017, 49039, 49095, 50037, 89005, 89007, 89098, 154683, 154957, 154968, 154970, 4854092, 10069950, 10129560, 12557682, 12557838, 12564401, 12564506, 12569736, 12582004, 12587295, 24501383, 24502735, 24504818, 24506756, 24508594, 24508595, 24577515, 53010230, 8100699500, 8971064550, 1L2Z6B209AA, 1L5Z6B209AA, 3C2Z6B209BA, 3M4Z8678AB, 4792581AA, 4792581AB, 4854092AC, 4861533AB, 4L8Z6B209AA, 53013324AA, 53032129AA, 53032645AA, 53032645ACRecommended Use : OE ReplacementProduct Fit : Direct FitReturns Policy : 30-Day Return Policy
Accessory Belt Idler Pulleys, 8 Cylinder, 5.0L Engine
Replacement
Accessory Belt Idler Pulleys, 8 Cylinder, 5.0L Engine
Part Number: SET-REPC313813-2
Guaranteed to Fit
$17.99
Vehicle Fitment
  • 2021 Ford Mustang GT Premium 8 Cyl 5.0L
  • 2021 Ford Mustang GT 8 Cyl 5.0L
  • 2021 Ford Mustang Mach 1 8 Cyl 5.0L
Product Details
Notes : 3 in. OD; 1.22 in. W; Flat; With steel flangeComponents : (2) Accessory Belt Idler PulleysWarranty : 1-year Replacement unlimited-mileage warrantyQuantity Sold : Set of 2Prop 65 Warning :

Warning SymbolWARNING: This product can expose you to chemicals including Lead, 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.

Interchange Part Number : 419610, 5019, 5979, 36491, 38043, 38058, 45019, 45979, 49011, 49017, 49039, 49095, 50037, 89005, 89007, 89098, 154683, 154957, 154968, 154970, 4854092, 10069950, 10129560, 12557682, 12557838, 12564401, 12564506, 12569736, 12582004, 12587295, 24501383, 24502735, 24504818, 24506756, 24508594, 24508595, 24577515, 53010230, 8100699500, 8971064550, 1L2Z6B209AA, 1L5Z6B209AA, 3C2Z6B209BA, 3M4Z8678AB, 4792581AA, 4792581AB, 4854092AC, 4861533AB, 4L8Z6B209AA, 53013324AA, 53032129AA, 53032645AAReplaces OE Number : 5019, 5979, 36491, 38043, 38058, 45019, 45979, 49011, 49017, 49039, 49095, 50037, 89005, 89007, 89098, 154683, 154957, 154968, 154970, 4854092, 10069950, 10129560, 12557682, 12557838, 12564401, 12564506, 12569736, 12582004, 12587295, 24501383, 24502735, 24504818, 24506756, 24508594, 24508595, 24577515, 53010230, 8100699500, 8971064550, 1L2Z6B209AA, 1L5Z6B209AA, 3C2Z6B209BA, 3M4Z8678AB, 4792581AA, 4792581AB, 4854092AC, 4861533AB, 4L8Z6B209AA, 53013324AA, 53032129AA, 53032645AA, 53032645ACRecommended Use : OE ReplacementProduct Fit : Direct FitReturns Policy : 30-Day Return Policy
Accessory Belt Idler Pulley - Sold individually
AC Delco®
Accessory Belt Idler Pulley - Sold individually
Part Number: AC36733
Guaranteed to Fit
$24.99
Vehicle Fitment
  • 2021 Ford Mustang EcoBoost 4 Cyl 2.3L
  • 2021 Ford Mustang EcoBoost Premium 4 Cyl 2.3L
Product Details
Warranty : 24-months or unlimited mile 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.

Techoice Series Accessory Belt Idler Pulley - Direct Fit, Sold individually
Dorman®
Techoice Series Accessory Belt Idler Pulley - Direct Fit, Sold individually
Part Number: RB419610
Guaranteed to Fit
$19.49
Vehicle Fitment
  • 2021 Ford Mustang GT Premium 8 Cyl 5.0L
  • 2021 Ford Mustang GT 8 Cyl 5.0L
  • 2021 Ford Mustang Mach 1 8 Cyl 5.0L
Product Details
Notes : 31 mm W x 76 mm Diameter; 20 mm Maximum Belt Width; 12 mm W and 17 mm ID Pulley Bearing; Serpentine Belt TypeWarranty : Lifetime Dorman 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 : Techoice SeriesNumberof Grooveson Pulley : 0Interchange Part Number : REPC313813, 5019, 5979, 36491, 38043, 38058, 45019, 45979, 49011, 49017, 49039, 49095, 50037, 89005, 89007, 89098, 154683, 154957, 154968, 154970, 4854092, 10069950, 10129560, 12557682, 12557838, 12564401, 12564506, 12569736, 12582004, 12587295, 24501383, 24502735, 24504818, 24506756, 24508594, 24508595, 24577515, 53010230, 8100699500, 8971064550, 1L2Z6B209AA, 1L5Z6B209AA, 3C2Z6B209BA, 3M4Z8678AB, 4792581AA, 4792581AB, 4854092AC, 4861533AB, 4L8Z6B209AA, 53013324AA, 53032129AA, 53032645AAReplaces OE Number : 5019, 5979, 36491, 38043, 38058, 45019, 45979, 49011, 49017, 49039, 49095, 50037, 89005, 89007, 89098, 154683, 154957, 154968, 154970, 4854092, 10069950, 10129560, 12557682, 12557838, 12564401, 12564506, 12569736, 12582004, 12587295, 24501383, 24502735, 24504818, 24506756, 24508594, 24508595, 24577515, 53010230, 8100699500, 8971064550, 1L2Z6B209AA, 1L5Z6B209AA, 3C2Z6B209BA, 3M4Z8678AB, 4792581AA, 4792581AB, 4854092AC, 4861533AB, 4L8Z6B209AA, 53013324AA, 53032129AA, 53032645AA, 53032645ACMaterial : SteelRecommended Use : OE ReplacementProduct Fit : Direct Fit
Accessory Belt Idler Pulley - Direct Fit, Sold individually
ContiTech®
Accessory Belt Idler Pulley - Direct Fit, Sold individually
Part Number: CTT50037
Guaranteed to Fit
$22.49
Vehicle Fitment
  • 2021 Ford Mustang Shelby GT500 8 Cyl 5.2L Accessory Drive; Smooth Pulley
  • 2021 Ford Mustang GT Premium 8 Cyl 5.0L Accessory Drive; Smooth Pulley
  • 2021 Ford Mustang GT 8 Cyl 5.0L Accessory Drive; Smooth Pulley
  • 2021 Ford Mustang Mach 1 8 Cyl 5.0L Accessory Drive; Smooth Pulley
Product Details
Warranty : 5-year ContiTech 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.

Material : SteelRecommended Use : OE ReplacementProduct Fit : Direct Fit
No Slack Series Accessory Belt Idler Pulley - Direct Fit, Sold individually
Dayco®
No Slack Series Accessory Belt Idler Pulley - Direct Fit, Sold individually
Part Number: DY89135
Guaranteed to Fit
$21.99
Vehicle Fitment
  • 2021 Ford Mustang EcoBoost 4 Cyl 2.3L
  • 2021 Ford Mustang EcoBoost Premium 4 Cyl 2.3L
Product Details
Warranty : 1 year or 12,000-mile Dayco 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 : No Slack SeriesProduct Fit : Direct Fit
No Slack Series Accessory Belt Idler Pulley - Direct Fit, Sold individually
Dayco®
No Slack Series Accessory Belt Idler Pulley - Direct Fit, Sold individually
Part Number: DY89007
Guaranteed to Fit
$21.49
Vehicle Fitment
  • 2021 Ford Mustang GT Premium 8 Cyl 5.0L
  • 2021 Ford Mustang GT 8 Cyl 5.0L
  • 2021 Ford Mustang Mach 1 8 Cyl 5.0L
Product Details
Notes : 1 bearing; 17 mm ID; 76 mm pulley diameter; 31 mm pulley W; 06 rib max belt W; Steel material; Serpentine type; Flat; Non-flangeWarranty : Dayco 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 : No Slack SeriesInterchange Part Number : REPC313813Product Fit : Direct Fit
Accessory Belt Idler Pulley - Universal, Sold individually
Holley®
Accessory Belt Idler Pulley - Universal, Sold individually
Part Number: H1997150
Universal Fit
$51.17
Product Details
Warranty : 90-day Holley 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.

Recommended Use : PerformanceProduct Fit : Universal
Accessory Belt Idler Pulley - Universal, Sold individually
Holley®
Accessory Belt Idler Pulley - Universal, Sold individually
Part Number: H1997153
Universal Fit
$69.49
Product Details
Warranty : 90-day Holley 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.

Recommended Use : PerformanceProduct Fit : Universal
Accessory Belt Idler Pulley - Universal, Sold individually
Holley®
Accessory Belt Idler Pulley - Universal, Sold individually
Part Number: H1997240
Universal Fit
$145.95
Product Details
Warranty : 90-day Holley 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.

Recommended Use : Performance ReplacementProduct Fit : Universal
Accessory Belt Idler Pulley - Universal, Sold individually
Holley®
Accessory Belt Idler Pulley - Universal, Sold individually
Part Number: H1997241
Universal Fit
$145.95
Product Details
Warranty : 90-day Holley 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.

Recommended Use : Performance ReplacementProduct Fit : Universal
Accessory Belt Idler Pulley - Universal, Sold individually
Holley®
Accessory Belt Idler Pulley - Universal, Sold individually
Part Number: H1997242
Universal Fit
$127.95
Product Details
Warranty : 90-day Holley 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.

Recommended Use : Performance ReplacementProduct Fit : Universal
Accessory Belt Idler Pulley - Universal, Sold individually
Holley®
Accessory Belt Idler Pulley - Universal, Sold individually
Part Number: H1997249
Universal Fit
$35.86
Product Details
Warranty : 90-day Holley 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.

Recommended Use : Performance ReplacementProduct Fit : Universal
Accessory Belt Idler Pulley - Universal, Sold individually
Holley®
Accessory Belt Idler Pulley - Universal, Sold individually
Part Number: H1997265
Universal Fit
$139.95
Product Details
Warranty : 90-day Holley 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.

Recommended Use : Performance ReplacementProduct Fit : Universal
Accessory Belt Idler Pulley - Universal, Sold individually
Holley®
Accessory Belt Idler Pulley - Universal, Sold individually
Part Number: H1997266
Universal Fit
$72.75
Product Details
Warranty : 90-day Holley 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.

Recommended Use : Performance ReplacementProduct Fit : Universal
Page 1 of 2 | Showing 1 - 15 of 17 results

Top Rated Products

Replacement Accessory Belt Idler Pulley, 17 mm ID, 76 mm Pulley Diameter, 31 mm Pulley Width, 20 mm Max Belt Width, Steel Material, Serpentine Type, Flat
$9.72( Review)
We received the parts we needed. They were correct and arrived in a very timely manneSee More
Courtney P.
VERIFIED PURCHASER
Replacement Accessory Belt Idler Pulleys, 8 Cylinder, 5.0L Engine
$17.99( Review)
Easy to install and worked great. Great parts and price.
Gary C.
VERIFIED PURCHASER

Popular Products

Helpful Automotive Resources

Where is the Idler Pulley Located?
Where is the Idler Pulley Located?Accessing the idler pulley can be deceptively tricky and you’ll need tools like a socket set and a torque wrench. It varies though, and on some engines it’s very easy but the belt needs to be removed first. .u6a72e1011bd98f4d937f035523e5f9d9 { padding:0px; margin: 0; padding-top:1em!important; padding-bottom:1em!important; width:100%; display: block; font-weight:bold; background-color:#eaeaea;
Bad Idler Pulley Symptoms Plus Replacement Recommendations
Bad Idler Pulley Symptoms Plus Replacement RecommendationsTo fully understand the function of an idler pulley, let’s look at how the whole mechanism works. If you own a modern vehicle, it probably has one serpentine belt rather than multiple V-belts.