2003 Mazda Protege Engine Cooling Parts

Name: AISIN Engine Coolant Temperature Sensor, THSAZ-8002
Brand: AISIN
SKU: THSAZ-8002
Price: 88.99 USD

Please Select your Vehicle to See Exact Fit Parts

Keep Your 2003 Mazda Protege in Top Shape with Quality Engine Cooling Parts

Whether you’re repairing or upgrading your Engine Cooling Part, using high-quality parts is key to keeping your 2003 Mazda Protege looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Thermostat and Water Outlet Gaskets, Thermostats, and Radiator Caps. Whether you’re replacing a damaged part or enhancing your truck’s style and protection, you’ll find exactly what you need to get the job done right.

Top-Rated Engine Cooling Parts from Trusted Brands

Looking for a reliable Engine Cooling Part? We’ve got you covered with options from brands you know and trust like Carquest Premium, Dorman, and Imperial. For example, Carquest Premium Engine Cooling Parts start at just $14.99 with an average 4.5 star rating. Dorman and Imperial offer similar pricing and quality, backed by strong customer feedback. With over 2,033 reviews and a solid 3.8 star average, you can shop with confidence knowing other Mazda Protege owners approve.

Competitive Prices and Extensive Inventory

The average price for a 2003 Mazda Protege Engine Cooling Part at Advance Auto Parts is around $51.92, with a range that starts at $0.75 and goes up to $282.99. With 46 options in stock from 10 trusted brands, finding the right fit is easy. Popular picks like Imperial Adjustable Thermostatic Fan Control, 226203, "Imperial Electric Fan, 12"" Diameter, 226112", and Carquest Coolant Temperature Sensor, WTC1005 start at just $24.99 and offer a great balance of form and function.

Explore Related Parts

While you’re upgrading or replacing your Engine Cooling Part, don’t forget to check out other key components like Air Conditioning Parts and Blower Motor and Related Products. At Advance Auto Parts, we’re here to help you keep your 2003 Mazda Protege in peak condition, inside and out.

Looking for the perfect Engine Cooling Part for your 2003 Mazda Protege? You’re in the right place. Below, you’ll find links to various types of Engine Cooling Parts that fit your vehicle. At Advance Auto Parts, we offer only the highest quality OEM and aftermarket Engine Cooling Parts, ensuring durability and a precise fit for your Mazda Protege. Whether you’re driving a 2003 model or another popular model year like 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, and 2002, we’ve got you covered. Purchasing Engine Cooling Parts from Advance Auto Parts is a smart choice, giving you access to trusted brands and parts built to perform. Below, you’ll find links to various types of Engine Cooling Parts that fit your vehicle.

Essential 2003 Mazda Protege Engine Cooling Parts

AISIN Engine Coolant Temperature Sensor, THSAZ-8002

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$88.99

AISIN is a leading manufacturer of cooling products for automotive applications, including water pumps and timing belt kits. Our products are known for their high-quality durability and efficient performance, making them a popular choice among car manufacturers and auto enthusiasts alike.

Dorman - Help Radiator Drain Cocks, 61125

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$7.99

This radiator drain petcock is a direct replacement for the original equipment plug that may have deteriorated or corroded. Made of quality materials, this petcock is engineered to strict standards for durable use over time.

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$177.99

A global leader in the manufacture and distribution of aftermarket cooling products for automotive, heavy truck, and industrial applications. Specialized in the production of OE-quality Radiators, Condensers, and Charge Air Coolers for US and international markets, covering over 10,000 part numbers worldwide. Reach Cooling is headquartered in Miami, Florida, with additional distribution centers in Los Angeles, California and a manufacturing plant in Shanghai, China.

Stant Thermostat Gasket (Sold by each), 30995

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$1.29

Stant Thermostat Gasket (Sold by each), 30995.

Carquest Radiator Cap Tester Adapter, 12024

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$17.99

Tester adapter for the MT-300 cooling system pressure testers. Professional grade test equipment to ensure an automotive cooling system is operating at the correct pressure. Made from high quality materials to ensure durability. Designed to test automotive coolant caps.

Dorman - Help Engine Coolant Reservoir Cap: Flip Top, Plastic, 1 Pack, 54234

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$26.99

Cracked or lost the original engine coolant reservoir cap- Replace it seamlessly and effectively with this precisely engineered, direct replacement cap.

Motorad UltraStats UltraStat Thermostat: 180 Degrees, 5240-180

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$16.99

This premium upgraded thermostat is everything you were looking for. UltraStat Thermostats are the toughest thermostats on the market. All heavy gauge stainless steel construction provides long-life durability, as well as complete corrosion resistance. Exclusive BLVT Valve technology minimizes thermal shock to cooling system components. This is the perfect upgrade to help insure your cooling system is working exactly as you need and expect it to for longevity.

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$21.99

Crafted to meet the exact specifications set by Original Equipment Manufacturers (OEM), these products are engineered for effortless installation and removal. Constructed from premium-grade components, incorporating proper relief and vacuum valves, they ensure optimal performance even in the most demanding automotive cooling systems. Rigorously quality-tested, these components provide exceptional, out-of-the-box performance and superior durability to meet or exceed the highest standards of today’s vehicles.

Dorman Non-Pressurized Coolant Reservoir: White, Plastic, Original Equipment Replacement, 603-507

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$67.99

This replacement engine coolant reservoir is manufactured from quality materials to withstand the stresses of underhood heat and engine vibration. It is engineered and manufactured to match the fit and function of the original part.

Carquest Coolant Housing/Water Outlet: Includes Seal, CH6019

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$28.99

Carquest Premium Thermostat Housings are manufactured with OEM quality materials and safety standards by an OE Supplier. This housing will meet and exceed the expectations of the OE thermostat to insure the best product for your cooling system. Stands up to even the most demanding automotive cooling systems. Manufactured with OEM specifications and processes. The construction of this housing is improved over the OE design to fix and update any issues that the OE design may have had.

Victor Reinz Engine Water Pump Gasket, 71-13553-00

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$9.99

With Victor Reinz gaskets, you can be sure you are getting sealing solutions that deliver OE quality gasket technology and engineering. That is because Victor Reinz is an original equipment supplier and the trusted choice of manufacturers the world over, offering broad coverage for foreign and domestic cars and trucks. In Victor Reinz gasket sets, you get the right combination of components needed for fast, long-lasting repairs.

Felpro Engine Coolant Outlet Gasket, 11760

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$3.99

Fel-Pro® gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.

Carquest Fuel Cap Tester Adapter:, 12427

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$34.99

Fuel Cap Tester Adaper for use with Stant fuel cap testers. Color coded for easy identification. Made of durable plastic.

Carquest Cooling System Tester Adapter, 12027

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$31.99

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$95.99

New Platinum Pro Radiator Fan Assembly, Automatic Transmission

Dorman Radiator Fan Assembly: Single, Cost Effective and Reliable, 620-739

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$69.99

This engine cooling fan assembly is precision-engineered to match the fit and performance of the stock radiator fan on specific vehicle years, makes and models. It has been rigorously tested to ensure it cools as effectively as the original part.

Victor Reinz Engine Coolant Outlet Gasket, 71-15568-00

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$4.99

Felpro Engine Coolant Outlet Gasket, 36103

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$4.49

Imperial Adjustable Thermostatic Fan Control, 226203

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$24.99

Our products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of mobile a/c experience, fix it once and fix it right with Imperial.

Carquest Engine Cooling Fan Module, ACC1313

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$99.99

All modern vehicles consist of several independent operating systems controlled by a main system processor with independent sub-processors. The sub-processors provide class 2 serial information data to the main processor while handling the operation of the system and carry the circuit load to protect the main operating system. When replacing any level processor programming may be needed to enter the unit into the vehicles main operating system.

Carquest Cooling System Tester Adapter, 12025

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$98.99

Dorman Radiator Fan Assembly: Single, Cost Effective and Reliable, 620-753

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$101.99

"Imperial Electric Fan, 12"" Diameter, 226112"

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$116.99

Our products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of mobile a/c experience, fix it once and fix it right with Imperial.

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$16.99

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$21.99

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$45.99

Relays are electrical switches used to convert a small electrical load into a circuit capable of handling a high amperage load. Computers and small switches are not designed to carry the higher amperage requirement of a circuit that may have an electric motor, solenoid, or high amperage lighting fixture. Within a relay are contacts that are controlled with electromagnetism, when the circuit switch commands the device on or off, magnetism will pull or release the contact arm closing or opening the contacts within the relay that carry the voltage.

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$29.99

Popular 2003 Mazda Protege Engine Cooling Parts Categories

Radiators

Engine Cooling Fan Controllers

Engine Coolant Thermostat Housing Caps

Coolant Temperature Sensors

Coolant Reservoir Caps

Radiator Fan Control Relays

Thermostat Housings

Thermostat Seals

Thermostat and Water Outlet Gaskets

Water Pump Gaskets

Radiator Drain Plugs

Radiator Cap Tester Adapters

Radiator Cap Adapters

Cooling System Tester Adapters

Most Popular Thermostat and Water Outlet Gaskets for 2003 Mazda Proteges

Enhance your 2003 Mazda Protege with one of the 4 Thermostat and Water Outlet Gaskets we have in stock, starting at just $4.29.

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$4.49

Felpro Engine Coolant Thermostat Gasket, 35951

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$4.29

Victor Reinz Engine Coolant Outlet Gasket, 71-15551-00

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$5.99

Victor Reinz Engine Coolant Thermostat Gasket, 71-16078-00

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$4.29

Best-Selling 2003 Mazda Protege Thermostats

Upgrade your Protege with one of our 3 best-selling Thermostats, earning an average 3.75 stars rating across 11 reviews.

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Carquest Thermostat: 170 Degrees with Seal, 14047

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$16.99

Manufactured with OEM quality materials and safety standards by an OE Supplier. Stands up to even the most demanding automotive cooling systems. Manufactured with OEM specifications and processes. Copper case and wax compound assures rapid response to temperature changes in the coolant. Offset design, air relief valve, and OEM style seals included where applicable.

Carquest Standard Thermostat: 180 Degrees, 14048

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$17.99

Carquest Premium Thermostats are manufactured with OEM quality materials and safety standards by an OE Supplier. This thermostat will meet and exceed the expectations of the OE thermostat to insure the best product for your cooling system. Stands up to even the most demanding automotive cooling systems. Manufactured with OEM specifications and processes. Copper case and wax compound assures rapid response to temperature changes in the coolant. Offset design, air relief valve, and OEM style seals included where applicable.

Motorad UltraStats UltraStat Thermostat: 180 Degrees, 5319-180

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$17.99

Top-Quality Radiator Caps for 2003 Mazda Proteges

Choose a high-quality OEM or aftermarket Radiator Cap for Mazda Proteges and enjoy top-notch performance from $21.99.

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$21.99

Top Picks for 2003 Mazda Protege Water Pump Gaskets

Invest in one of our 3 durable Water Pump Gaskets for your 2003 Mazda, knowing you’re getting trusted brands and expert craftsmanship.

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$3.99

Victor Reinz Engine Water Pump Gasket, 71-15576-00

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$10.29

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$9.99

Top-Rated Radiators for 2003 Mazda Proteges

Make a smart move for your 2003 Mazda Protege with products all priced from $135.99 to $207.99.

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$207.99

Carquest Premium Radiators offer one of the largest product ranges in the aftermarket, covering more than 95% of the popular automotive and light truck applications. Carquest Premium Radiators meet or exceed original equipment specifications, ensuring that products fit and perform just as well or better than the original parts, providing you peace of mind.

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$191.99

Reach Radiators offer one of the largest product ranges in the aftermarket, covering more than 95% of the popular automotive and light truck applications. Reach Radiators meet or exceed original equipment specifications, ensuring that products fit and perform just as well or better than the original parts, providing you peace of mind.

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$135.99

New Platinum Pro Radiator, 1.6 And 2.0 Liter Engines, With Or Without A/C

Top-Rated Engine Cooling Part Brands For Your 2003 Mazda Protege

When it comes to finding the perfect Engine Cooling Part for your 2003 Mazda Protege, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 10 trusted brands. We carry the most popular Engine Cooling Part brands including Carquest Premium, Dorman, and Imperial, and more, all known for their exceptional customer ratings (average brand rating of 4.5 stars) and competitive prices, as low as $7.99. Purchasing a Engine Cooling Part from us here at Advance Auto Parts is a smart move for both you and your 2003 Mazda Protege, providing peace of mind with parts that meet or exceed OEM standards.

Popular Carquest Premium 2003 Mazda Protege Engine Cooling Parts

If you’re looking for a top-quality Engine Cooling Part for your 2003 Mazda Protege, Advance Auto Parts has exactly what you need with our selection of Carquest Premium Engine Cooling Parts. We have 3 Carquest Premium Engine Cooling Parts in stock for this fitment, all known for their durability and precision fit. With prices starting at just $14.99 and an average cost of $79.99, you’ll find the perfect Engine Cooling Part for your needs and budget. Carquest Premium Engine Cooling Parts for the 2003 Mazda Protege come highly rated, with over 353 customer reviews and an impressive average rating of 4.5 stars. Choosing a Carquest Premium Engine Cooling Part from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.

from $207.99

(23)

Carquest Radiator, 432481

“Did not need it but it is very similar to the original and is in great condition.”

from $14.99

(193)

Carquest Radiator Cap: 16 PSI, 10233

“works as it should”

from $16.99

(137)

Carquest Radiator Cap: 16 PSI, 10242

“This product fixed the problem.”

Top-Quality Dorman 2003 Mazda Protege Engine Cooling Parts

For those in search of a high-quality Engine Cooling Part for their 2003 Mazda Protege, Advance Auto Parts offers a great selection of Dorman Engine Cooling Parts. With 2 Dorman Engine Cooling Parts in stock, you can trust you’re getting top-tier parts designed for durability and a perfect fit. Prices for these Engine Cooling Parts start at just $7.99, with an average price of $45.99, giving you a range of options to suit your budget. Backed by over 9 customer ratings and an average rating of 4.2 stars, Dorman Engine Cooling Parts provide both reliability and excellent performance. Choosing a Dorman Engine Cooling Part from Advance Auto Parts is a smart investment in your vehicle’s performance and longevity.

Dorman Radiator Fan Assembly: Single, Cost Effective and Reliable, 620-757

from $83.99

(2)

Dorman Radiator Fan Assembly: Single, Cost Effective and Reliable, 620-757

“great product good price and im glad”

from $7.99

(7)

Dorman – Help Radiator Drain Cocks, 61125

“Just what I needed, perfect fit.”

FAQs for 2003 Mazda Protege Engine Cooling Parts

What are the best-selling Engine Cooling Parts for 2003 Mazda Proteges?

Out of 46 Engine Cooling Parts that fit 2003 Mazda Proteges, the following parts are the top sellers:

Imperial Adjustable Thermostatic Fan Control, 226203 (6016936) – $24.99
"Imperial Electric Fan, 12"" Diameter, 226112" (6016901) – $116.99
Carquest Coolant Temperature Sensor, WTC1005 (12422776) – $39.99

What’s the price range for 2003 Mazda Protege Engine Cooling Parts?

The prices of Engine Cooling Parts for the 2003 Mazda Protege range from $0.75 up to $282.99 for the most premium parts.

What is the average price of an Engine Cooling Part for a 2003 Mazda Protege?

The average price for Engine Cooling Parts for the 2003 Mazda Protege is $51.92. Keep in mind the variety of part types within our Engine Cooling Part category, where you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Engine Cooling Parts for other Mazda Protege model years?

Yes, we carry Engine Cooling Parts for 12 model years of Mazda Proteges between 1990 and 2002. The following model years are the most popular for Engine Cooling Part purchases: 2002, 2001, 2000, 1999, 1998, 1997, 1996, 1995, and 1994.

What are the cheapest Engine Cooling Parts for my 2003 Mazda Protege?

The cheapest 2003 Mazda Protege Engine Cooling Parts we carry are:

Stant Thermostat Gasket (Sold by each), 30995 (11150704) – $1.29
Felpro Engine Coolant Outlet Gasket, 11760 (5180554) – $3.99
Felpro Engine Coolant Thermostat Gasket, 35951 (10901024) – $4.29
Victor Reinz Engine Coolant Thermostat Gasket, 71-16078-00 (50260356) – $4.29
Felpro Engine Coolant Outlet Gasket, 36103 (12001587) – $4.49

Does Advance Auto Parts sell Engine Cooling Parts for any other 2003 Mazda models?

Yes. We stock Engine Cooling Parts for 6 other popular 2003 Mazda models. Some of the most popular are 2003 MPV Engine Cooling Parts, 2003 B4000 Engine Cooling Parts, 2003 6 Engine Cooling Parts, 2003 B2300 Engine Cooling Parts, and 2003 B3000 Engine Cooling Parts.

What types of Engine Cooling Parts do you sell for my 2003 Mazda Protege?

As of 8/2/26, these are some of the most in-demand types of Engine Cooling Parts for a 2003 Mazda Protege:

Can I get help with 2003 Mazda Protege Engine Cooling Part orders?

Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about Mazda Engine Cooling Parts and more.

What is your return policy for Mazda Protege Engine Cooling Parts?

Advance Auto Parts keeps returns simple. For new Mazda Protege Engine Cooling Parts and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.

2003 Mazda Protege Engine Cooling Parts

AISIN – AISIN Engine Coolant Temperature Sensor, THSAZ-8002 (Part No.THSAZ-8002)

Dorman – Help – Dorman – Help Radiator Drain Cocks, 61125 (Part No.61125)

Carquest Premium – Carquest Radiator, 432538 (Part No.432538)

Stant – Stant Thermostat Gasket (Sold by each), 30995 (Part No.30995)

Carquest Premium – Carquest Radiator Cap Tester Adapter, 12024 (Part No.12024)

Dorman – Help – Dorman – Help Engine Coolant Reservoir Cap: Flip Top, Plastic, 1 Pack, 54234 (Part No.54234)

Motorad UltraStats – Motorad UltraStats UltraStat Thermostat: 180 Degrees, 5240-180 (Part No.5240-180)

Carquest Premium – Carquest Radiator Cap: 16 PSI, 10333 (Part No.10333)

Dorman – Dorman Non-Pressurized Coolant Reservoir: White, Plastic, Original Equipment Replacement, 603-507 (Part No.603-507)

Carquest Premium – Carquest Coolant Housing/Water Outlet: Includes Seal, CH6019 (Part No.CH6019)

Victor Reinz – Victor Reinz Engine Water Pump Gasket, 71-13553-00 (Part No.71-13553-00)

Felpro – Felpro Engine Coolant Outlet Gasket, 11760 (Part No.11760)

Carquest Premium – Carquest Fuel Cap Tester Adapter:, 12427 (Part No.12427)

Carquest Premium – Carquest Cooling System Tester Adapter, 12027 (Part No.12027)

KAI – KAI Cooling Fan Assembly, MA3115112 (Part No.MA3115112)

Dorman – Dorman Radiator Fan Assembly: Single, Cost Effective and Reliable, 620-739 (Part No.620-739)

Victor Reinz – Victor Reinz Engine Coolant Outlet Gasket, 71-15568-00 (Part No.71-15568-00)

Felpro – Felpro Engine Coolant Outlet Gasket, 36103 (Part No.36103)

Imperial – Imperial Adjustable Thermostatic Fan Control, 226203 (Part No.226203)

Carquest Premium – Carquest Engine Cooling Fan Module, ACC1313 (Part No.ACC1313)

Carquest Premium – Carquest Cooling System Tester Adapter, 12025 (Part No.12025)

Dorman – Dorman Radiator Fan Assembly: Single, Cost Effective and Reliable, 620-753 (Part No.620-753)

Imperial – "Imperial Electric Fan, 12"" Diameter, 226112" (Part No.226112)

Carquest Premium – Carquest Radiator Cap: 13 PSI, 10241 (Part No.10241)

Carquest Premium – Carquest Radiator Cap: 16 PSI, ST37 (Part No.ST37)

Carquest Premium – Carquest Multi-Purpose Relay, RAA1917 (Part No.RAA1917)

Carquest Premium – Carquest Multi-Purpose Relay, RAA1941 (Part No.RAA1941)

Felpro – Felpro Engine Coolant Outlet Gasket, 36103 (Part No.36103)

Felpro – Felpro Engine Coolant Thermostat Gasket, 35951 (Part No.35951)

Victor Reinz – Victor Reinz Engine Coolant Outlet Gasket, 71-15551-00 (Part No.71-15551-00)

Victor Reinz – Victor Reinz Engine Coolant Thermostat Gasket, 71-16078-00 (Part No.71-16078-00)

Carquest Premium – Carquest Thermostat: 170 Degrees with Seal, 14047 (Part No.14047)

Carquest Premium – Carquest Standard Thermostat: 180 Degrees, 14048 (Part No.14048)

Motorad UltraStats – Motorad UltraStats UltraStat Thermostat: 180 Degrees, 5319-180 (Part No.5319-180)

Carquest Premium – Carquest Radiator Cap: 16 PSI, ST37 (Part No.ST37)

Felpro – Felpro Engine Coolant Outlet Gasket, 11760 (Part No.11760)

Victor Reinz – Victor Reinz Engine Water Pump Gasket, 71-15576-00 (Part No.71-15576-00)

Victor Reinz – Victor Reinz Engine Water Pump Gasket, 71-13553-00 (Part No.71-13553-00)

Carquest Premium – Carquest Radiator, 432481 (Part No.432481)

Carquest Premium – Carquest Radiator, 412303 (Part No.412303)

KAI – KAI Radiator, RAD2446 (Part No.RAD2446)