What is the purpose of the self-adjusting serpentine drive belt in Ford Mustang and how should it be inspected and replaced?

Accessory components like alternators, power steering pumps, water pumps, and air conditioning compressors in vehicles are powered by a self-adjusting serpentine drive belt. The belt should be checked regularly since its lifespan is 100000 miles. To check it open the hood, and look for the front engine belt and you will see cracks, separation, fraying, or glazing on both sides with your eyes. Replace the belt if it is found out that it falls outside this range. Replace, and rotate the tensioner to release tension, remove the old belt and route the new one over pulleys then release the tensioner. For air conditioning compressor drive belts in 2011 and later models, a stretchy belt design is used that requires engine rotation and insertion of a flexible material to remove or install them.

Genuine Ford Mustang Drive Belt

Serpentine Belt

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64 Drive Belts found

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Ford Mustang V-Belt
Part Number: BR3Z-8620-Q
- Manufacturer Note: Belt Kit; Contains Instruction Sheet For Outside Customer Sales.
$32.42 MSRP: $46.00
You Save: $13.58 (30%)

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Fits the following Vehicles:
2015-2019 Ford Mustang | 6 Cyl 3.7L PFI NA | 10-Speed Automatic Transmission (10R80), 6-Speed Automatic Transmission (6R80), 6-Speed Manual Transmission-3160, 6-Speed Manual Transmission-MT82, Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
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Ford Mustang V-Belt
Part Number: FR3Z-8620-C
- Other Name: Serpentine Belt
$21.01 MSRP: $44.73
You Save: $23.72 (54%)

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Fits the following Vehicles:
2015-2019 Ford Mustang | 4 Cyl 2.3L TIVCT DI TC | 10-Speed Automatic Transmission (10R80), 6-Speed Automatic Transmission (6R80), 6-Speed Manual Transmission-3160, 6-Speed Manual Transmission-MT82, Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
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Ford Mustang V-Belt
Part Number: BR3Z-8620-N
$37.00 MSRP: $50.56
You Save: $13.56 (27%)

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Fits the following Vehicles:
2011-2019 Ford Mustang | 6 Cyl 3.7L PFI NA | 10-Speed Automatic Transmission (10R80), 6-Speed Automatic Transmission (6R80), 6-Speed Manual Transmission (T56), 6-Speed Manual Transmission-3160, 6-Speed Manual Transmission-MT82, Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
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Ford Mustang V-Belt
Part Number: BR3Z-8620-S
- Replaces: BR3Z-8620-F, JK4-364
$29.30 MSRP: $46.73
You Save: $17.43 (38%)

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Fits the following Vehicles:
2015-2019 Ford Mustang | 6 Cyl 3.7L PFI NA | 10-Speed Automatic Transmission (10R80), 6-Speed Automatic Transmission (6R80), 6-Speed Manual Transmission-3160, 6-Speed Manual Transmission-MT82, Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
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Ford Mustang V-Belt
Part Number: FR3Z-8620-B
- Other Name: Serpentine Belt
$36.02 MSRP: $57.45
You Save: $21.43 (38%)

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Fits the following Vehicles:
2015-2019 Ford Mustang | 8 Cyl 5.0L DOHC EFI Modular, 8 Cyl 5.0L MOD DOHC SEFI NA, 8 Cyl 5.2L | 10-Speed Automatic Transmission (10R80), 6-Speed Automatic Transmission (6R80), 6-Speed Manual Transmission-3160, 6-Speed Manual Transmission-MT82, Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
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Ford Mustang V-Belt
Part Number: FR3Z-8620-A
- Other Name: AC Belt
$14.71 MSRP: $23.45
You Save: $8.74 (38%)

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More Info
Fits the following Vehicles:
2015-2019 Ford Mustang | 4 Cyl 2.3L TIVCT DI TC | 10-Speed Automatic Transmission (10R80), 6-Speed Automatic Transmission (6R80), 6-Speed Manual Transmission-3160, 6-Speed Manual Transmission-MT82, Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
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Ford Mustang V-Belt
Part Number: BR3Z-8620-R
- Other Name: AC Belt
- Replaces: JK6-342, BR3Z-8620-A
$32.60 MSRP: $52.00
You Save: $19.40 (38%)

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Fits the following Vehicles:
2011-2019 Ford Mustang | 8 Cyl 5.0L DOHC EFI Modular, 8 Cyl 5.0L MOD DOHC SEFI NA, 8 Cyl 5.2L | 10-Speed Automatic Transmission (10R80), 6-Speed Automatic Transmission (6R80), 6-Speed Manual Transmission (T56), 6-Speed Manual Transmission-3160, 6-Speed Manual Transmission-MT82, Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
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Ford Mustang V-Belt
Part Number: BR3Z-8620-A
- Manufacturer Note: Air Conditioning Belt
- Replaced by: BR3Z-8620-R
$32.60 MSRP: $52.00
You Save: $19.40 (38%)

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More Info
Fits the following Vehicles:
2011-2014 Ford Mustang | 8 Cyl 5.0L DOHC EFI Modular, 8 Cyl 5.0L MOD DOHC SEFI NA | 6-Speed Automatic Transmission (6R80), 6-Speed Manual Transmission (T56), 6-Speed Manual Transmission-MT82, Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
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Ford Mustang V-Belt
Part Number: BR3Z-8620-B
- Other Name: AC Belt
- Manufacturer Note: For In Dealership Repairs Only
$17.56 MSRP: $28.00
You Save: $10.44 (38%)

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Fits the following Vehicles:
2011-2014 Ford Mustang | 6 Cyl 3.7L PFI NA | 6-Speed Automatic Transmission (6R80), 6-Speed Manual Transmission (T56), 6-Speed Manual Transmission-MT82, Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
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Ford Mustang V-Belt
Part Number: BR3Z-8620-BA
- Manufacturer Note: Belt Kit; Contains Instruction Sheet For Outside Customer Sales.
$19.49 MSRP: $31.09
You Save: $11.60 (38%)

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More Info
Fits the following Vehicles:
2011-2014 Ford Mustang | 6 Cyl 3.7L PFI NA | 6-Speed Automatic Transmission (6R80), 6-Speed Manual Transmission (T56), 6-Speed Manual Transmission-MT82, Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
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Ford Mustang V-Belt
Part Number: 5R3Z-8620-AA
- Replaced by: AR3Z-8620-A
$41.72 MSRP: $66.55
You Save: $24.83 (38%)

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Fits the following Vehicles:
2005-2010 Ford Mustang | 6 Cyl 4.0L SOHC EFI | 5-Speed Automatic Transmission 5R55S, 5-Speed Manual Transmission T5OD, 5-Speed Manual Transmission TR3650, 6-Speed Manual Transmission (T56), Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
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Ford Mustang V-Belt
Part Number: 7R3Z-8620-A
- Other Name: AC Belt, Drive Belt, Serpentine Belt
- Manufacturer Note: Air Conditioning Belt
$50.27 MSRP: $83.09
You Save: $32.82 (40%)

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Fits the following Vehicles:
2007-2013 Ford Mustang | 8 Cyl 5.4L DOHC EFI S/C ALUM | 5-Speed Automatic Transmission 5R55S, 5-Speed Manual Transmission T5OD, 5-Speed Manual Transmission TR3650, 6-Speed Automatic Transmission (6R80), 6-Speed Manual Transmission (T56), 6-Speed Manual Transmission-MT82, Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
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Ford Mustang V-Belt
Part Number: BR3Z-8620-D
- Other Name: AC Belt, Serpentine Belt
- Manufacturer Note: Main Drive Belt
$22.91 MSRP: $36.55
You Save: $13.64 (38%)

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More Info
Fits the following Vehicles:
2011-2014 Ford Mustang | 8 Cyl 5.0L MOD DOHC SEFI NA | 6-Speed Automatic Transmission (6R80), 6-Speed Manual Transmission (T56), 6-Speed Manual Transmission-MT82, Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
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Ford Mustang V-Belt
Part Number: JR3Z-8620-A
- Other Name: AC Belt
- Manufacturer Note: Air Conditioning Belt
$33.63 MSRP: $53.64
You Save: $20.01 (38%)

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More Info
Fits the following Vehicles:
2018-2019 Ford Mustang | 8 Cyl 5.0L DOHC EFI Modular, 8 Cyl 5.0L MOD DOHC SEFI NA | 10-Speed Automatic Transmission (10R80), 6-Speed Manual Transmission-3160, 6-Speed Manual Transmission-MT82, Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
Less Info
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Ford Mustang V-Belt
Part Number: BR3Z-8620-C
- Other Name: Serpentine Belt
$20.12 MSRP: $31.27
You Save: $11.15 (36%)

Add to Cart
More Info
Fits the following Vehicles:
2011 Ford Mustang | 6 Cyl 3.7L PFI NA | 6-Speed Automatic Transmission (6R80), 6-Speed Manual Transmission (T56), 6-Speed Manual Transmission-MT82, Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
Less Info
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Ford Mustang ATMTV BELT
Part Number: D7PZ8620G
$13.73 MSRP: $18.75
You Save: $5.02 (27%)

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Fits the following Vehicles:
1980-1981 Ford Mustang | 4 Cyl 2.3L, 6 Cyl 3.3L, 8 Cyl 4.2L, 8 Cyl 5.0L | 3AT C3, 3AT C4, 4MT, 5MT
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Ford Mustang ATMTV BELT
Part Number: E4DZ8620D
$16.81 MSRP: $22.97
You Save: $6.16 (27%)

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Fits the following Vehicles:
1985-1986 Ford Mustang | 4 Cyl 2.3L, 6 Cyl 3.8L, 8 Cyl 5.0L | 3AT C3, 3AT C5, 4AT AOD, 4MT, 5MT
Less Info
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Ford Mustang Belt
Part Number: DR3Z-8620-B
- Other Name: AC Belt
- Manufacturer Note: For Super Charger And Air Conditioning Belt
More Info
Fits the following Vehicles:
2013-2014 Ford Mustang | 8 Cyl 4.6L SOHC EFI, 8 Cyl 5.8L DOHC SC | 6-Speed Automatic Transmission (6R80), 6-Speed Manual Transmission (T56), 6-Speed Manual Transmission-MT82, Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
Less Info
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Ford Mustang ATMTV BELT
Part Number: E2FZ8620B
More Info
Fits the following Vehicles:
1988 Ford Mustang | 4 Cyl 2.3L, 8 Cyl 5.0L | 4AT A4LD, 4AT AOD, 5MT
Less Info
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Ford Mustang V-BELT
Part Number: E43Z8620G
- Other Name: Belt, Idler Pulley
More Info
Fits the following Vehicles:
1990-1991 Ford Mustang | 4 Cyl 2.3L, 8 Cyl 5.0L | 4AT A4LD, 4AT AOD, 5MT
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Ford Mustang Drive Belt Parts Questions & Answers

V-Belt
BR3Z-8620-R
Q: What is the purpose of the self-adjusting serpentine drive belt in Ford Mustang and how should it be inspected and replaced?
A: Accessory components like alternators, power steering pumps, water pumps, and air conditioning compressors in vehicles are powered by a self-adjusting serpentine drive belt. The belt should be checked regularly since its lifespan is 100000 miles. To check it open the hood, and look for the front engine belt and you will see cracks, separation, fraying, or glazing on both sides with your eyes. Replace the belt if it is found out that it falls outside this range. Replace, and rotate the tensioner to release tension, remove the old belt and route the new one over pulleys then release the tensioner. For air conditioning compressor drive belts in 2011 and later models, a stretchy belt design is used that requires engine rotation and insertion of a flexible material to remove or install them.