2015 Mustang Belts – OEM Serpentine & Drive Belt Replacements

Keep Your 2015 Mustang Running Strong

A worn belt might seem minor—but it can cause major problems. The serpentine and accessory belts in your 2015 Mustang power essential systems like the alternator, water pump, A/C compressor, and power steering. If a belt snaps or slips, it can lead to overheating, battery issues, and sudden breakdowns.

Replacing your belts with OEM-quality components ensures reliable operation, quiet performance, and perfect fitment that matches factory specs.

BR3Z6B209E - : Accessory Drive Belt Tensioner Assembly for Ford Image

Accessory Drive Belt Tensioner Assembly

Transit. 3.7l. Left. Expedition, Navigator. 3.5L turbo, single alternator. F150. 3.5l. 2015-17. Mustang. 3.7l. Without turbo. Belt...
$105.56
MSRP $165.45
Save $59.89
36.2% Off
TCRK11 - : Motorcraft™ Engine Timing Chain for Ford Image

Motorcraft™ Engine Timing Chain

Ford TCRK-11
Crank To Cam. F150. Mustang. Primary chain.
$48.49
MSRP $69.67
Save $21.18
30.4% Off
JK1345 - : Motorcraft™ Accessory Drive Belt for Ford Image

Motorcraft™ Accessory Drive Belt

Ford JK-1345
Routing:Crk,Comp. Compressor.
$26.44
MSRP $41.09
Save $14.65
35.7% Off
YS338 - : Motorcraft Accessory Drive Belt Idler Pulley for Ford Image

Motorcraft Accessory Drive Belt Idler Pulley

Ford YS-338
F250, f350 super duty. 6.2l. F150. 6.2l. Without supercharger. Mustang. 5.0l. Boss. Mustang. 5.2l. Gt350, gt350r. With high output.
$30.65
MSRP $47.64
Save $16.99
35.7% Off
BT103 - : Motorcraft Accessory Drive Belt Tensioner Assembly for Ford Image

Motorcraft Accessory Drive Belt Tensioner Assembly

Ford BT-103
$124.12
MSRP $194.55
Save $70.43
36.2% Off
BT114 - : Motorcraft Accessory Drive Belt Tensioner Assembly for Ford Image

Motorcraft Accessory Drive Belt Tensioner Assembly

Ford BT-114
$94.31
MSRP $147.82
Save $53.51
36.2% Off
YS358 - : Motorcraft Accessory Drive Belt Idler Pulley for Ford Image

Motorcraft Accessory Drive Belt Idler Pulley

Ford YS-358
$23.99
MSRP $37.27
Save $13.28
35.6% Off
BT118 - : Motorcraft Accessory Drive Belt Tensioner Assembly for Ford Image

Motorcraft Accessory Drive Belt Tensioner Assembly

Ford BT-118
For Alternator Belt. Transit. 3.7l. Left. Single alternator. Expedition, Navigator. 3.5L turbo, dual alternators. F150. 3.5l. 2015-17....
$105.56
MSRP $165.45
Save $59.89
36.2% Off
BR3Z6M256A - : Guide for Ford Image

Guide

F150. Right. Mustang. F-150. Slack side.
$20.59
MSRP $29.33
Save $8.74
29.8% Off
JL3Z6L266C - : Tensioner for Ford Image

Tensioner

Crank To Cam. Adjuster. F150. Mustang. Primary timing.
$28.52
MSRP $40.63
Save $12.11
29.8% Off
GR3Z6L266A - : Tensioner for Ford Image

Tensioner

Crank To Cam. Adjuster. Mustang. F-150. Lower.
$91.36
MSRP $131.27
Save $39.91
30.4% Off
CJ5Z6K297A - : Guide for Ford Image

Guide

$29.72
MSRP $42.33
Save $12.61
29.8% Off

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Why Choose OEM Belts?

OEM Fitment – Precisely engineered for the 2015 Mustang’s engine and accessory layout. 

Prevents Failures – Reduces the risk of slippage, fraying, and engine accessory breakdown. 

Durable Construction – Made from reinforced materials for heat and wear resistance. 

Efficient Operation – Delivers consistent power to critical components without noise. 

Easy Installation – Direct replacement belts require no modifications or trimming.

Compatible with These 2015 Mustang Models

OEM belts are available for:

  • Mustang EcoBoost (2.3L Turbocharged I4)

  • Mustang GT (5.0L V8)

  • Mustang V6 (3.7L V6)

  • Both Fastback and Convertible models

Note: Some models may have different belt routing depending on accessories and performance packages. Always confirm with your VIN or trim.

Warning Signs of a Failing Belt

🚙 Squealing noise during startup or acceleration 

🚙 Cracked, frayed, or shiny belt surface 

🚙 Overheating engine or weak battery charging 

🚙 Loss of power steering or A/C functionality 

🚙 Dashboard warning lights for charging or coolant systems

Ignoring belt wear can leave you stranded—prevent costly repairs with timely replacement.

Belt Options for Your 2015 Mustang

🔹 Serpentine Belts – Power multiple accessories with a single efficient belt. 

🔹 Accessory Drive Belts – May power components separately depending on engine type. 

🔹 Performance Belts – Reinforced options for tuned or track-driven Mustangs requiring extra durability.

Popular Related Parts for 2015 Mustang

🔹 Mustang Belt Tensioners – Keep proper belt tension to avoid slippage and squealing. 

🔹 Mustang Idler Pulleys – Guide the belt and ensure smooth operation. 

🔹 Mustang Water Pumps – Replace aging pumps while accessing belts for full cooling performance.

🛒 Upgrade Your Ride 🚙 – Shop Now!

Don’t wait for your Mustang’s belt to break—restore smooth operation with OEM-quality belts. 

Browse our inventory and get the perfect fit to keep your Mustang running like new.

FAQs About 2015 Mustang Belts

❓ How long do belts last on a 2015 Mustang? Most belts last 60,000–100,000 miles, depending on driving conditions and engine heat.

❓ Can I check the belt condition myself? Yes. Inspect for cracks, fraying, or glazing—especially on the ribbed side of the belt.

❓ Do I need to replace the tensioner with the belt? It’s a good idea. A weak or worn tensioner can cause new belts to fail prematurely.

❓ What happens if the serpentine belt breaks while driving? You could lose power steering, battery charging, and engine cooling—potentially leading to engine damage.

❓ Are performance belts necessary on a stock engine? Not usually. Standard OEM belts are ideal for most drivers unless you’ve upgraded accessories or engine output.