Subaru Ascent Thermostats – OEM-Quality Engine Cooling

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            Subaru Ascent Thermostats – High-Quality Performance & OEM Parts

            Maintain optimal engine temperature and cooling efficiency with OEM Subaru Ascent thermostats. Whether you need a factory replacement or a performance upgrade, these thermostats provide precise temperature regulation, preventing engine overheating or inefficient cooling that can lead to engine wear.

            Built from high-quality stainless steel and brass, these thermostats are engineered for corrosion resistance, longevity, and maximum reliability in all driving conditions.

            73540XC00A - : Thermostatic Switch for Subaru Image

            Thermostatic Switch

            Subaru 73540XC00A
            Inner components, to 01/27/2020. Ascent. To 01/20.
            $7.47
            MSRP $10.73
            Save $3.26
            30.4% Off
            21236AA070 - : Thermostat Gasket for Subaru Image

            Thermostat Gasket

            Subaru 21236AA070
            Engine Cooling. Front. Ascent. WRX. Forester. With turbo. 2.0L hybrid. Impreza. With hybrid, lower. Crosstrek.
            $3.06
            MSRP $4.40
            Save $1.34
            30.5% Off
            21210AA191 - : Engine Coolant Thermostat for Subaru Image

            Engine Coolant Thermostat

            Subaru 21210AA191
            XV Crosstrek.
            $23.32
            MSRP $33.50
            Save $10.18
            30.4% Off
            21210AA221 - : Engine Coolant Thermostat for Subaru Image

            Engine Coolant Thermostat

            Subaru 21210AA221
            $27.45
            MSRP $39.43
            Save $11.98
            30.4% Off
            11060AA300 - : Engine Coolant Thermostat Housing for Subaru Image

            Engine Coolant Thermostat Housing

            Subaru 11060AA300
            Engine Cooling. Front. Ascent. Impreza. Crosstrek. WRX. 2.0L hybrid. Forester. With turbo. 2.5L, lower. Engine Coolant Thermostat...
            $27.83
            MSRP $39.98
            Save $12.15
            30.4% Off
            11060AA360 - : Engine Coolant Thermostat Housing for Subaru Image

            Engine Coolant Thermostat Housing

            Subaru 11060AA360
            Transmission Cooling. Rear. Without hybrid, upper. Forester. 2.0L. Impreza. WRX. Off water pipe. Crosstrek.
            $14.56
            MSRP $20.92
            Save $6.36
            30.4% Off
            21236AA101 - : Engine Coolant Thermostat Gasket for Subaru Image

            Engine Coolant Thermostat Gasket

            Subaru 21236AA101
            Transmission Cooling. Rear. Legacy, Outback. BRZ. Forester. Impreza. Crosstrek. 2.5L, 2024-25. 2.0L. from 07/13/2022.
            $4.35
            MSRP $6.25
            Save $1.90
            30.4% Off
            73540XC01A - : Temp Sensor for Subaru Image

            Temp Sensor

            Subaru 73540XC01A
            Inner components, from 01/28/2020. Ascent. From 01/20.
            $16.12
            MSRP $23.17
            Save $7.05
            30.4% Off
            800606980 - : Pulley Bolt for Subaru Image

            Pulley Bolt

            Subaru 800606980
            2.4L turbo. 2.5L without turbo, 2011-13. 2.5L without turbo, 2013-14. 2.0L hybrid. With hybrid.
            $0.42
            MSRP $0.72
            Save $0.30
            41.7% Off
            808206210 - : Water Pump Bolt for Subaru Image

            Water Pump Bolt

            Subaru 808206210
            2.5L, thermostat. 2.4L turbo. 2.5L without turbo.
            $0.65
            MSRP $1.12
            Save $0.47
            42% Off
            808206180 - : By-Pass Pipe Mount Bolt for Subaru Image

            By-Pass Pipe Mount Bolt

            Subaru 808206180
            2.5L, thermostat. 2.4L turbo. 2.5L without turbo, 2013-14.
            $0.60
            MSRP $1.04
            Save $0.44
            42.3% Off
            807519050 - : Hose for Subaru Image

            Hose

            Subaru 807519050
            Hose - Subaru (807519050) The Hose - Subaru (807519050) is a Genuine OEM component designed specifically for Subaru vehicles,...
            $12.90
            MSRP $18.53
            Save $5.63
            30.4% Off

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            Why Choose OEM Subaru Ascent Thermostats?

            ✔ OEM Fitment – Designed for factory specifications to ensure precise temperature control. 

            ✔ Prevents Overheating & Cold Running – Maintains consistent engine temperature for peak performance. 

            ✔ Durable Construction – Made from stainless steel and corrosion-resistant materials for longevity. 

            ✔ Efficient Cooling System Operation – Ensures proper coolant flow and engine protection. 

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

            Compatible Subaru Models

            These OEM thermostats are engineered for various Subaru Ascent models, ensuring perfect fitment and reliable cooling performance:

            • Subaru Ascent (2019–2024)

            Before purchasing, check your vehicle’s engine specifications to select the correct thermostat rating and fitment.

            How to Install a Subaru Ascent Thermostat

            A properly functioning thermostat is crucial for engine cooling and efficiency. Follow this step-by-step guide for proper installation.

            Tools Required:

            ✔ Jack and jack stands 

            ✔ Socket wrench set 

            ✔ Coolant drain pan 

            ✔ Gasket scraper or sealant 

            ✔ Torque wrench 

            ✔ Fresh coolant

            Step-by-Step Installation Guide:

            1. Drain the Coolant – Place a drain pan under the radiator and drain coolant to prevent spills.

            2. Locate the Thermostat Housing – Typically near the engine block, connected to the upper radiator hose.

            3. Remove the Old Thermostat – Use a socket wrench to loosen the housing bolts and remove the old thermostat.

            4. Clean the Mounting Surface – Remove old gasket material or debris to ensure a proper seal.

            5. Install the New Thermostat – Insert the new thermostat in the correct orientation (spring facing the engine), then secure the housing.

            6. Refill Coolant & Bleed Air – Refill the cooling system with fresh coolant, run the engine, and check for leaks.

            Pro Tip: If you’re using a low-temperature thermostat, it can help maintain cooler operating temperatures in performance applications.

            Signs You Need to Replace Your Subaru Ascent Thermostat

            🚙 Engine overheating or running too cold. 

            🚙 Temperature gauge fluctuates unexpectedly. 

            🚙 Coolant leaks near the thermostat housing. 

            🚙 Check engine light due to cooling system issues. 

            🚙 Reduced fuel efficiency caused by incorrect temperature regulation.

            If you experience these symptoms, replacing the thermostat prevents costly engine damage and ensures smooth operation.

            Types of Subaru Ascent Thermostats

            🔹 OEM Replacement Thermostats – Best for factory cooling performance, ensuring stable engine temperature regulation. 

            🔹 Low-Temperature Thermostats – Ideal for performance applications, keeping engine temperatures lower for better power output. 

            🔹 High-Flow Thermostats – Improves coolant circulation, ensuring efficient heat dissipation under extreme conditions.

            Choosing the right thermostat ensures efficient engine cooling and longevity.

            Popular Related Parts for Subaru Ascent

            🔹 Subaru Ascent Radiators – Maintain maximum cooling efficiency with OEM and performance radiators. 

            🔹 Subaru Ascent Water Pumps – Ensure proper coolant circulation for reliable engine cooling. 

            🔹 Subaru Ascent Cooling Fans – Improve airflow and enhance cooling system performance.

            Get Your Subaru Ascent Thermostat Today!

            Ensure optimal engine cooling performance and prevent overheating with a high-quality OEM Subaru Ascent thermostat. Browse the selection and find the right fit for your Subaru Ascent today!

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            FAQs About Subaru Ascent Thermostats

            ❓ How often should I replace my Subaru Ascent thermostat? Most thermostats last 60,000–100,000 miles, but regular inspections help prevent overheating issues.

            ❓ What temperature thermostat is best for performance applications? For high-performance setups, a 160°F–180°F thermostat helps keep engine temperatures lower.

            ❓ Can I replace my Subaru Ascent thermostat myself? Yes! With basic tools, most DIY mechanics can replace a thermostat in under an hour. Just ensure you bleed air from the cooling system after installation.

            ❓ Do I need to flush my coolant when replacing a thermostat? Yes, it's recommended to drain and replace coolant to maintain optimal cooling system performance.

            ❓ What happens if I drive with a faulty thermostat? A bad thermostat can cause engine overheating, poor fuel economy, and long-term engine damage.