Mustang Thermostats – OEM-Quality Cooling Control for 2015 Ford Models

Protect Your 2015 Mustang’s Engine with a New Thermostat

Your 2015 Ford Mustang depends on a properly functioning thermostat to maintain optimal engine temperature. A thermostat stuck open or closed can lead to overheating, poor fuel economy, or sluggish performance.

Replace worn or faulty thermostats with OEM-quality units that ensure precise temperature control and coolant flow. These thermostats are built to factory specifications for long-lasting, reliable performance in all driving conditions—from daily commuting to aggressive performance driving.

BR3Z8255B - : Engine Coolant Outlet Gasket for Ford Image

Engine Coolant Outlet Gasket

O-Ring. Outlet Flange. 5.0L, main, single alternator. 5.0L, main, dual alternator. Without supercharger. Automatic transmission. With...
$2.96
MSRP $4.60
Save $1.64
35.7% Off
W503279S437 - : Engine Cylinder Head Bolt for Ford Image

Engine Cylinder Head Bolt

All Required. 6 x 30mm. Thermostat hsng,screw. Lower Intake Manifold to Head. 6 x 30mm. 3.7L. 6.7L 2020-22. Adapter,bolt. 4.6L, 2007-09....
$2.34
MSRP $4.00
Save $1.66
41.5% Off
RG639 - : Motorcraft Engine Coolant Outlet Gasket for Ford Image

Motorcraft Engine Coolant Outlet Gasket

Ford RG-639
2.3L. Water outlet gasket. Mustang.
$2.88
MSRP $4.47
Save $1.59
35.6% Off
RG631 - : Motorcraft Engine Coolant Outlet Gasket for Ford Image

Motorcraft Engine Coolant Outlet Gasket

Ford RG-631
O-Ring. Outlet Flange. 5.0L, main, single alternator. 5.0L, main, dual alternator. Without supercharger. Automatic transmission. 5.2L....
$2.96
MSRP $4.60
Save $1.64
35.7% Off
W503278S437 - : Genuine Ford Bolt for Ford Image

Genuine Ford Bolt

Sold Individually M6 x 27mm
$2.34
MSRP $4.00
Save $1.66
41.5% Off
W503283S437 - : Engine Oil Filter Adapter Bolt for Ford Image

Engine Oil Filter Adapter Bolt

M6x1.00. 5.0L main single alternator. M6x27mm. 5.0L, m6x1.00mm. From 1/16/09. Adapter,mount bolt. 3.7L. To 1/15/09. 3.5L. With...
$2.34
MSRP $4.00
Save $1.66
41.5% Off
W500214S437 - : Vapor Canister Purge Valve Assembly Bolt for Ford Image

Vapor Canister Purge Valve Assembly Bolt

Door Interior Trim Panel Bolt - Ford (W500214-S437) The Door Interior Trim Panel Bolt – Ford (W500214-S437) is a Genuine OEM...
$2.34
MSRP $4.00
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41.5% Off
W520201S437 - : Lift-Gate Finish Panel Trim Plate Nut for Ford Image

Lift-Gate Finish Panel Trim Plate Nut

$2.34
MSRP $4.00
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41.5% Off
7T4Z8527A - : Engine Coolant Pipe O-Ring for Ford Image

Engine Coolant Pipe O-Ring

Engine Coolant Pipe O-Ring – Ford (7T4Z-8527-A) is a Genuine OEM sealing component manufactured by Ford , designed to provide a...
$3.14
MSRP $4.46
Save $1.32
29.6% Off
8C3Z7Z465A - : Cooler Pipe Retainer Clip for Ford Image

Cooler Pipe Retainer Clip

Inlet Tube Retainer Clip – Ford (8C3Z-7Z465-A) is a Genuine OEM fastening component manufactured by Ford and designed to securely...
$8.20
MSRP $11.68
Save $3.48
29.8% Off
VC3Z8575A - : Thermostat Assembly for Ford Image

Thermostat Assembly

$40.08
MSRP $62.82
Save $22.74
36.2% Off
BM5Z8575A - : Thermostat Assembly for Ford Image

Thermostat Assembly

$89.44
MSRP $140.18
Save $50.74
36.2% Off

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Why Choose OEM Thermostats?

OEM Fitment – Designed for factory specifications to ensure precise performance. 

Prevents Failures – Maintains optimal operation and longevity. 

Durable Construction – Made from high-quality, corrosion-resistant materials. 

Efficient Operation – Ensures proper function and system protection. 

Easy Installation – Direct bolt-on replacement with no modifications required.

Compatible with the 2015 Ford Mustang

These thermostats are compatible with multiple 2015 Mustang engine options: 3.7L V6, 2.3L EcoBoost I4, and 5.0L V8 Coyote 

📌 Check your engine type and thermostat temperature rating before ordering.

How to Replace a 2015 Mustang Thermostat

Replacing a worn thermostat helps prevent cooling issues and engine stress.

Tools Required: 

✔ Socket wrench set 

✔ Drain pan 

✔ Gasket scraper 

✔ Coolant 

✔ Torque wrench

Steps:

  1. Let the engine cool and drain enough coolant from the radiator.

  2. Locate the thermostat housing near the upper radiator hose.

  3. Remove the housing and take out the old thermostat.

  4. Clean the gasket surface and install the new thermostat and gasket.

  5. Reassemble housing, refill coolant, and bleed air from the system.

🛠️ Tip: Always use a new gasket or O-ring during replacement to avoid leaks.

Signs of a Failing Thermostat

🔹 Engine overheating or temperature gauge spiking 

🔹 Heater blowing cold air 

🔹 Coolant leaks near thermostat housing 

🔹 Reduced fuel efficiency 

🔹 Long warm-up times or fluctuating temperatures

Ignoring thermostat issues can lead to serious engine damage—replace it at the first signs of failure.

2015 Mustang Thermostat Options

🔹 OEM Replacement Thermostats – Match factory performance and fit. 

🔹 High-Performance Thermostats – Open at lower temps for tuned or track-driven Mustangs. 

🔹 Complete Thermostat Kits – Includes housing, sensor, and gaskets for a full repair.

Popular Related Parts for 2015 Ford Mustang

🔹 Mustang Radiators – Improve cooling efficiency with a fresh core. 

🔹 Mustang Water Pumps – Keep coolant circulating to prevent engine damage. 

🔹 Mustang Coolant Temperature Sensors – Maintain accurate temp readings and fan activation.

Get Your 2015 Mustang Thermostat Today!

Don’t let overheating sideline your Mustang. Restore your 2015 model’s cooling system performance with a direct-fit OEM thermostat built to keep things running smooth. 

🛒 Upgrade Your Ride 🚙 – Shop Now!

FAQs About 2015 Ford Mustang Thermostats

❓ How often should I replace my thermostat? Typically every 80,000–100,000 miles, or at the first sign of failure.

❓ Can I replace the thermostat myself? Yes. It’s a relatively simple DIY job with basic tools and coolant.

❓ Should I replace the gasket with the thermostat? Absolutely. A new gasket or O-ring ensures a proper seal and prevents leaks.

❓ What temperature should my Mustang thermostat open at? Most OEM thermostats open between 180–195°F, depending on the engine.

❓ Is a performance thermostat worth it? If you're tuned or tracking your Mustang, a lower-temp thermostat may help with heat management.