2021 Subaru Forester Belts – Serpentine, Drive & Accessory Belt Replacements

2021 Subaru Forester Belts – Keep Your Engine Running Smoothly

Your 2021 Subaru Forester’s belts are essential for powering key engine components, including the alternator, water pump, power steering, and air conditioning system. Over time, belts wear out due to heat, friction, and normal use, which can cause squeaking noises, reduced performance, or belt failure.

Choose OEM replacement belts for factory-spec durability or performance-grade belts for extra strength and longevity.

64660FL05AVH - : Belt Assembly R Out  4D for Subaru Image

Belt Assembly R Out 4D

Subaru 64660FL05AVH
$74.53
MSRP $107.08
Save $32.55
30.4% Off
64671XC01EWA - : Belt Assembly R In   Left-hand for Subaru Image

Belt Assembly R In Left-hand

Subaru 64671XC01EWA
$36.69
MSRP $52.72
Save $16.03
30.4% Off
64179GA060LE - : Seat Belt Set F Right-hand for Subaru Image

Seat Belt Set F Right-hand

Subaru 64179GA060LE
$147.99
MSRP $212.63
Save $64.64
30.4% Off
64179GA770LR - : Seat Belt Set R Left-hand for Subaru Image

Seat Belt Set R Left-hand

Subaru 64179GA770LR
$106.05
MSRP $152.37
Save $46.32
30.4% Off
64620AA001EL - : Seat Belt Set F Right-hand for Subaru Image

Seat Belt Set F Right-hand

Subaru 64620AA001EL
$158.04
MSRP $227.07
Save $69.03
30.4% Off
64620AA020EM - : Seat Belt Set F Right-hand for Subaru Image

Seat Belt Set F Right-hand

Subaru 64620AA020EM
$205.77
MSRP $295.65
Save $89.88
30.4% Off
64671XC00EWA - : Belt Assembly R In   Right-hand for Subaru Image

Belt Assembly R In Right-hand

Subaru 64671XC00EWA
$35.08
MSRP $50.40
Save $15.32
30.4% Off
764590820 - : Seat Belt Set F Right-hand for Subaru Image

Seat Belt Set F Right-hand

Subaru 764590820
$88.42
MSRP $127.03
Save $38.61
30.4% Off
64662XA03AEU - : Belt Ay R Out Elh for Subaru Image

Belt Ay R Out Elh

Subaru 64662XA03AEU
$64.70
MSRP $92.97
Save $28.27
30.4% Off
64676XC00CWA - : Belt Assembly R Center Ictr for Subaru Image

Belt Assembly R Center Ictr

Subaru 64676XC00CWA
$35.01
MSRP $50.30
Save $15.29
30.4% Off
64681FG131AN - : Center Belt Assembly R J for Subaru Image

Center Belt Assembly R J

Subaru 64681FG131AN
$210.95
MSRP $303.08
Save $92.13
30.4% Off
64680SC060AR - : Center Belt Assembly R Uc for Subaru Image

Center Belt Assembly R Uc

Subaru 64680SC060AR
$38.80
MSRP $55.75
Save $16.95
30.4% Off

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Why Choose OEM 2021 Subaru Forester Belts?

OEM Fitment – Direct replacement ensures perfect tension and alignment

Prevents Slippage & Failure – Keeps engine accessories running efficiently

Durable Materials – Made from high-strength rubber with reinforced cords

Reduces Noise & Vibration – Provides a quieter, smoother ride

Easy InstallationDirect-fit design for quick replacement.

Compatible 2021 Subaru Forester Models

These OEM and aftermarket belts fit: 

🚙 2021 Subaru Forester Base, Premium, Sport, Limited, and Touring models 

🚙 Compatible with 2.5L Subaru Boxer Engine 

🚙 Designed for symmetrical all-wheel-drive systems 

🚙 Check your engine type and accessory configuration to confirm proper fitment.

How to Replace 2021 Subaru Forester Belts

Replacing worn-out belts ensures consistent power delivery to engine accessories. Follow these steps for an easy installation:

Tools Required:

✔ Socket wrench set 

✔ Belt tensioner tool or breaker bar 

✔ Replacement belt 

✔ Flashlight (for visibility in tight spaces)

Step-by-Step Installation Guide:

  1. Locate the Belt Routing Diagram – Found under the hood or in the owner’s manual.

  2. Release Belt Tension – Use a tensioner tool or breaker bar to rotate the belt tensioner.

  3. Remove the Old Belt – Carefully slide it off the pulleys.

  4. Inspect Pulleys & Tensioner – Check for excessive wear, misalignment, or debris buildup.

  5. Install the New Belt – Follow the belt routing diagram to ensure correct placement.

  6. Reapply Tension – Let the tensioner return to its proper position.

  7. Start the Engine & Check Alignment – Ensure smooth operation without squeaking or misalignment.

💡 Pro Tip: If your belt shows signs of wear, inspect the belt tensioner and pulleys for proper function.

Signs You Need to Replace Your 2021 Subaru Forester Belts

🚙 Squealing or chirping noises when starting or accelerating 

🚙 Cracks, fraying, or missing sections on the belt 

🚙 Power steering, AC, or alternator failure 

🚙 Overheating due to a failing water pump belt 

🚙 Battery warning light illuminated on the dashboard

A failing belt can lead to critical engine issues—replace it before it breaks!

2021 Subaru Forester Belt Options: Choosing the Right Type

🔹 OEM Replacement Serpentine Belt – Designed for factory-like durability and reliability

🔹 Heavy-Duty Serpentine Belt – Reinforced construction for high-performance and off-road use

🔹 Performance Drive Belt – Offers improved heat resistance and longevity for extreme conditions.

Popular Related Parts for 2021 Subaru Forester

🔹 2021 Subaru Forester Belt Tensioner – Keeps the serpentine belt properly aligned and tensioned

🔹 2021 Subaru Forester Idler Pulley – Reduces vibration and ensures smooth belt operation

🔹 2021 Subaru Forester Water Pump – Maintains cooling system efficiency.

Upgrade Your Ride 🚙 – Shop Now!

Keep your 2021 Subaru Forester’s engine running smoothly with a high-quality serpentine or accessory belt. Order your replacement today and prevent unexpected breakdowns!

FAQs About 2021 Subaru Forester Belts

How long do Subaru Forester serpentine belts last? Most belts last 50,000 to 100,000 miles, but replace them at the first signs of wear.

Can I replace my Forester’s belt myself? Yes! With basic tools and mechanical know-how, replacing the serpentine belt is a straightforward DIY task.

What happens if my belt breaks while driving? A broken belt can disable engine accessories, leading to loss of power steering, alternator failure, and overheating.

Do I need to replace the belt tensioner with the belt? If the tensioner shows signs of wear or has excessive play, it's recommended to replace it alongside the belt.

What is the difference between a serpentine belt and a timing belt?

  • Serpentine Belt – Drives engine accessories like the alternator, AC, and power steering.

  • Timing Belt (if applicable) – Controls the engine’s camshaft and crankshaft synchronization.