2023 Mustang Belts – OEM Serpentine & Accessory Belts for Long-Lasting Performance

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Keep Your Engine Accessories Running Smoothly

The belts in your 2023 Ford Mustang power critical systems like the alternator, A/C compressor, power steering, and water pump. If your belt is showing cracks, fraying, or squealing, replacing it now can prevent a costly breakdown later.

These OEM-spec serpentine and accessory belts are designed for exact routing and tension, ensuring quiet, reliable performance on every Mustang trim—from the 2.3L EcoBoost to the 5.2L GT500.

Serpentine Belt

Part Number: FR3Z-8620-B
Ford Ford
Other Names: V Belt, jk6682
Description: Mustang. 5.0l. Without supercharger. Mustang. 5.2l. Gt350, gt350r.
Fits:
  • Ford:
    • Mustang
MSRP $54.91
$35.03

Belt Cover

Part Number: JR3Z-6360262-AA
Ford Ford
Other Names: Cover Seat Belt Upper
Description: Coupe.
Fits:
  • Ford:
    • Mustang
MSRP $26.13
$18.35

AC Belt

Part Number: FR3Z-8620-A
Ford Ford
Other Names: V Belt, jk4331
Description: Mustang. 2.3l.
Fits:
  • Ford:
    • Mustang
MSRP $29.45
$18.95

Serpentine Belt

Part Number: FR3Z-8620-C
Ford Ford
Other Names: V Belt, jk4534
Description: Mustang. 2.3l.
Fits:
  • Ford:
    • Mustang
MSRP $56.73
$36.19

AC Belt

Part Number: JR3Z-8620-A
Ford Ford
Other Names: V Belt, jk6295
Description: 5.0L. Manual transmission.
Fits:
  • Ford:
    • Mustang
MSRP $64.73
$41.30

Belt Weather-Strip

Part Number: FR3Z-6321452-F
Ford Ford
Other Names: Weatherstrip Assembly Door Window
Replaces: FR3Z-6321452-B, FR3Z-6321452-D
Description: Bright.
Fits:
  • Ford:
    • Mustang
MSRP $176.30
$122.70

Seat Belt Assembly

Part Number: JR3Z-63611B08-AE
Ford Ford
Other Names: Lap & Shoulder Belt, Pre-tensioner Seat Belt Buckl
Description: Mustang. Front. Right. Coupe.
Fits:
  • Ford:
    • Mustang
MSRP $401.35
$279.34

Seat Belt Assembly

Part Number: JR3Z-63611B09-AE
Ford Ford
Other Names: Lap & Shoulder Belt, Pre-tensioner Seat Belt Buckl
Description: Mustang. Front. Left. Coupe.
Fits:
  • Ford:
    • Mustang
MSRP $403.27
$280.67

Belt Weather-Strip

Part Number: FR3Z-6321456-B
Ford Ford
Other Names: Weatherstrip Door Belt
Replaces: FR3Z-6321456-A
Fits:
  • Ford:
    • Mustang
MSRP $123.33
$85.84

Belt Weather-Strip

Part Number: FR3Z-6321457-B
Ford Ford
Other Names: Weatherstrip Door Belt
Replaces: FR3Z-6321457-A, FR3Z-6321457-C
Fits:
  • Ford:
    • Mustang
MSRP $123.33
$85.84

Belt Weather-Strip

Part Number: FR3Z-76297B07-B
Ford Ford
Notes: Included with end cover.
Other Names: Weatherstrip Fixed Glass
Replaces: FR3Z-76297B07-A
Description: Convertible.
Fits:
  • Ford:
    • Mustang
MSRP $95.52
$66.48

Outer Belt Screw***sold individually***

Part Number: W505277-S442
Ford Ford
Notes: Included with outer belt. Included with seat belt assembly.
Other Names: Seat Belt Assembly Bolt, Bumper Screw, Reflector Panel Nut, Hinge Lower Bolt, Seat Belt Lap And Shoulder Belt Bolt, Screw
Description: Coupe. Single rear wheels. Dual rear wheels. Outer belt,screw. Crew cab without inflatable belts.
Fits:
  • Ford:
    • F-150,
    • F-250 Super Duty,
    • F-350 Super Duty,
    • F-450 Super Duty,
    • Mustang,
    • Ranger,
    • Transit-150,
    • Transit-250,
    • Transit-350,
    • Transit-350 HD
  • Lincoln:
    • Nautilus
MSRP $5.00
$2.93
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Why Choose OEM Belts?

OEM Fitment – Designed to match factory routing and tension specifications. 

Prevents Failures – Avoids belt slippage, engine overheating, or loss of electrical charging. 

Durable Construction – Made with heat-resistant rubber and internal reinforcements. 

Efficient Operation – Reduces noise and maximizes accessory performance. 

Easy Installation – Direct-fit replacement—no cutting or adjustment required.

Compatible Ford Mustang Models

Fits 2023 Ford Mustang, including:

  • EcoBoost / EcoBoost Premium (2.3L Turbo I4)

  • GT / GT Premium / Mach 1 (5.0L V8)

  • Shelby GT500 (5.2L Supercharged V8)

Check your engine and accessory configuration for exact fitment before purchase.

How to Replace Belts on a 2023 Mustang

Tools Required: 

✔ Serpentine belt tool or breaker bar 

✔ Socket and ratchet set 

✔ Gloves 

✔ Flashlight 

✔ New OEM belt

Installation Steps:

  1. Refer to the Belt Routing Diagram under the hood or in your owner's manual.

  2. Relieve Tension using the belt tensioner tool or breaker bar.

  3. Remove the Old Belt, and inspect for wear or cracking.

  4. Install the New Belt, following the exact routing path.

  5. Reapply Tension, check alignment, and start the engine to confirm smooth operation.

Pro Tip: Check the belt tensioner and idler pulleys during replacement—these often wear alongside the belt.

Signs You Need a New Belt

🚙 Squealing or chirping when accelerating 

🚙 Cracked, frayed, or shiny belt surface 

🚙 Loss of power steering, cooling, or alternator output 

🚙 Battery warning light or overheating 

🚙 Visible slack or belt misalignment

Belt Options for Your 2023 Mustang

🔹 OEM Serpentine Belts – Factory-fit for quiet, dependable operation 

🔹 High-Performance Belts – Reinforced for high-RPM and modified engines 

🔹 Accessory Drive Belts – For secondary systems on specific trims

Popular Related Parts for 2023 Mustang

🔹 2023 Mustang Belt Tensioners – Maintain correct belt tension and reduce slippage 

🔹 2023 Mustang Idler Pulleys – Guide and stabilize belt routing 

🔹 2023 Mustang Alternators – Keep the electrical system powered 

🔹 2023 Mustang Water Pumps – Ensure proper engine cooling

Get Your 2023 Mustang Belts Today

Don't risk engine failure due to a worn belt—replace yours with OEM-quality components designed for a perfect fit and long-lasting performance. 

🛒 Upgrade Your Ride 🚙 – Shop Now!

FAQs About 2023 Mustang Belts

❓ How long do belts typically last? Most last 60,000–100,000 miles, but inspect regularly for wear or noise.

❓ What happens if the serpentine belt breaks? You may lose power to the alternator, A/C, water pump, and power steering, leading to overheating or battery drain.

❓ Can I install a new belt myself? Yes—it's a simple DIY job with basic tools and attention to routing.

❓ Should I replace the tensioner with the belt? Yes—a weak or worn tensioner can cause early belt failure.

❓ Are aftermarket belts okay? OEM belts offer superior fit, noise reduction, and longer service life, especially on high-performance Mustangs.