2018 Mazda 6 Engine Cooling Parts
Keep Your 2018 Mazda 6 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 2018 Mazda 6 looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Thermostats, Coolant Reservoirs, and Radiators. 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. For example, Carquest Premium Engine Cooling Parts start at just $14.99 with an average 4.4 star rating. With over 946 reviews and a solid 4 star average, you can shop with confidence knowing other Mazda 6 owners approve.
Competitive Prices and Extensive Inventory
The average price for a 2018 Mazda 6 Engine Cooling Part at Advance Auto Parts is around $113.07, with a range that starts at $3.99 and goes up to $1,133.00. With 17 options in stock from 6 trusted brands, finding the right fit is easy. Popular picks like UltraStat Thermostat: 180 Degrees, Radiator Cap Tester Adapter, and Engine Water Pump: New, Gasket/Seals Included start at just $17.99 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 Blower Motor and Related Products and HVAC Electrical Parts. At Advance Auto Parts, we’re here to help you keep your 2018 Mazda 6 in peak condition, inside and out.
Find Your Specific 2018 Mazda 6 Engine Cooling Parts
Looking for the perfect Engine Cooling Part for your 2018 Mazda 6? 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 6. Whether you’re driving a 2018 model or another popular model year like
2012,
2013,
2014,
2015,
2016,
2017,
2019,
2020, and
2021, 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 2018 Mazda 6 Engine Cooling Parts
Carquest Premium – Radiator Cap: 20 PSI (Part No.10267)
from
$12.99
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.
Product Features:
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Product Features:
- Maintains proper cooling system pressure
- Easy installation and removal
- 100% tested to ensure proper pressure and longevity
- Meets all OEM specifications
Dorman – Help – Radiator Cap (Part No.54237)
from
$22.99
This radiator cap is designed to match the fit and function of the original cap on specified vehicles, and is engineered for durability and reliable performance.
Product Features:
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Product Features:
- Direct replacement – this radiator cap is designed to match the fit and function of the original cap on specified vehicles
- Restores functionality – reliable replacement for an original cap that is missing, leaking or failed due to gasket fatigue and heat
- Durable construction – this part is made from quality materials to ensure reliable performance and long service life
- Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
Carquest Premium – Coolant Housing/Water Outlet: Includes Seal (Part No.CH2105)
from
$45.99
Carquest Premium Coolant 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.
Product Features:
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Product Features:
- Easy, one step fit and installation
- No special tools required
- Meets or exceeds all OEM standards
Dorman – Engine Coolant Water Outlet (Part No.902-690)
from
$86.99
This replacement engine coolant water outlet is engineered to match the fit and durability of the stock engine coolant water outlet on specified vehicles. It is designed to withstand extreme temperature changes to extend service life.
Product Features:
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Product Features:
- Ideal replacement – this engine coolant water outlet directly replaces the original water outlet on specified vehicle years, makes and models
- Durable construction – this part is specifically designed to withstand extreme temperature changes and resist cracking and leaking
- Cost-effective and reliable – offers original manufacturer quality at lower cost than getting replacement at dealer
- Industry-leading design – professionally engineered by the aftermarket leader in replacement water outlets
NTK – Engine Coolant Temperature Sensor (Part No.EF0106)
from
$32.99
The Engine Coolant Temperature Sensor determines the exact temperature of the engine coolant by sending an analog signal to the ECM to ensure proper air/fuel ratio along with proper operation of the cooling fans and temperature gauge. The Engine Coolant Temperature Sensor may be located on the cylinder head, engine block, thermostat housing or intake manifold. Reasons for replacement include, check engine light illumination, erratic or no temperature gauge operation, erratic or no cooling fan operation, and engine overheating.
Product Features:
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Product Features:
- OE MATCHED: Wires and probe length match OE. Mounting clips included where applicable
- FASTER RESPONSE TIME: Thermal conductive grease inside brass housing increases sensor response time
- THE DIFFERENCE: Thread sealant/o-ring installed where applicable. Thermistor placement within the housing matches OE to ensure proper output. Proper thermal conductive grease to provide accurate temperature transfer to the thermistor
Carquest Premium – Coolant Temperature Sensor 1TS1136 (Part No.WTC1291)
from
$115.99
Product Features:
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- Designed to meet or exceed OE specifications for fit, form and function
- 100% factory resistance calibrated to ensure precision tolerances, resulting in extremely accurate temperature for optimal performance
- OE precision matched thermistor ensuring Carquest sensors match OE output resistances across all temperature positions
- O-rings, seals or thread sealant are included if required
- Weather-tight connectors prevent leaks and corrosion for longer life
- Extensive design validation testing and 100% end-of-line tested
- Carquest Vehicle Solutions Technical Support available from ASE certified technicians: 1-866-687-5413
Carquest Premium – Radiator Cap Tester Adapter (Part No.12021)
from
$18.99
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.
Product Features:
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Product Features:
- Machined metal construction
- Works with MT-300 pressure tester
- Tests coolant caps
- Professional quality
Carquest Premium – Radiator Cap Tester Adapter (Part No.12033)
from
$95.99
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.
Product Features:
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Product Features:
- Machined metal construction
- Works with MT-300 pressure tester
- Tests coolant caps
- Professional quality
Carquest Premium – Radiator Cap: 16 PSI (Part No.10233)
from
$14.99
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.
Product Features:
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Product Features:
- Maintains proper cooling system pressure
- Easy installation and removal
- 100% tested to ensure proper pressure and longevity
- Meets all OEM specifications
Carquest Premium – Radiator Cap: 16 PSI (Part No.10333)
from
$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.
Product Features:
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Product Features:
- Safety lever to vent coolant pressure before removal
- Maintains proper cooling system pressure
- Easy installation and removal
- 100% tested to ensure proper pressure and longevity
- Meets all OEM specifications
Carquest Premium – Engine Water Pump: New, Gasket/Seals Included (Part No.T2327)
from
$72.99
This premium water pump uses new high-quality components and is designed to meet or exceed OE specifications. This pump is 100% tested to ensure quality. Bearings, gaskets, seals, impeller, hub and housing are all designed for long-lasting service life. All necessary gaskets and seals are included.
Product Features:
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Product Features:
- 100% tested for reliable performance
- Durable housing features precisely machined mounting surface for proper sealing and fitment
- Equipped with weep chamber or similar feature to help prevent unnecessary replacement
- Included heavy-duty unitized bearings, pressed-on hubs and optimal impeller clearance for a long-lasting water pump
- All gaskets or seals necessary for water pump are included
- This pump is driven by the accessory belt and we recommend replacement if nearing service recommendation
- This pump is driven by the timing chain; see vehicle manufacturer recommendation for replacement of timing components
- This pump is driven by the timing belt; see vehicle manufacturer recommendation for replacement of timing components
- Additional Notes: Includes gasket
Carquest Premium – Engine Water Pump: New, Gasket/Seals Included (Part No.T1190)
from
$119.99
This premium water pump uses new high-quality components and is designed to meet or exceed OE specifications. This pump is 100% tested to ensure quality. Bearings, gaskets, seals, impeller, hub and housing are all designed for long-lasting service life. All necessary gaskets and seals are included.
Product Features:
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Product Features:
- Built to meet or exceed OE fit, form and function
- All components necessary for installation are supplied with pump
- 100% tested for reliable performance
- Follow all enclosed instructions to maximize pump life and validate warranty
- Additional Notes: Includes gasket
Driveworks Water Pumps – Water Pump: New, Installation Gasket Included (Part No.58-670)
from
$109.99
Driveworks Water Pumps offer a complete replacement part solution, with application coverage that spans from antique to present-day vehicles. All units are 100% tested and engineered to meet or exceed OEM performance, providing you a quality product you and your vehicle can rely on. All units are manufacturered with brand new components and are packaged with all gaskets required for replacement.
Product Features:
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Product Features:
- 100% Factory tested for leakage and dimensional precision
- Manufactured to original casting specifications to ensure a proper fit and proper water flow for efficient cooling
- Bearings made of heat-treated carbon or carburized steel are sealed and lubricated to ensure smooth performance throughout units life
- Assembled with new, high-quality unitized shaft seals to prevent premature leakage
- Supplied with gasket and other seals/gaskets as applicable per application to help complete the job
- This pump is driven by the accessory belt and we recommend replacement if nearing service recommendation
MAHLE Original – Engine Coolant Outlet Gasket (Part No.B31861)
from
$6.99
MAHLE® gaskets provide world class sealing products trusted by OEMs & Technicians around the globe.
Product Features:
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Product Features:
- All MAHLE gaskets meet or exceed the original equipment specifications providing the finest sealing products available
- MAHLE gaskets utilizes OE equivalent or better materials in all our gaskets
- MAHLE gaskets is the leader in Domestic, Asian and European applications
- The contents of MAHLE gaskets are packaged in shrink wrapped tray, giving you the added security of knowing that you have the right parts, prior to opening the package
Felpro – THERMOSTAT GASKET (Part No.35771)
from
$3.99
Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust.
Product Features:
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Product Features:
- Meets or exceeds all original equipment specifications
- Application specific design to ensure a perfect fit
- Engineered and manufactured specifically for the repair environment
- Unsurpassed quality you can trust
- Validated for fit, form, and function
Felpro – Engine Coolant Thermostat Housing Gasket (Part No.36216)
from
$6.29
Product Features:
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- Meets or exceeds all original equipment specifications
- Application specific design to ensure a perfect fit
- Engineered for the sealing repair environment
- Validated for fit, form and function
- Unsurpassed quality you can trust
Carquest Premium – Radiator (Part No.813390)
from
$241.99
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.
Product Features:
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Product Features:
- Our B-type tubes feature central reinforcement to provide greater tolerance to pressure. Stronger tube design means drastically reduced probability of tube failure.
- Our deep extrusion header provides a stronger tube to header joint which is more resistant to the effects of vibration and thermal tube expansion, virtually eliminating tube to header leaks.
- Our fin edges are folded for increased stability and heat disbursement properties.
- Our included “multi-fit” attachments allow one radiator to cover multiple vehicle applications without sacrificing OE fit. This results in wider vehicle coverage with substantially less inventory.
- Thermal expansion cuts allow for longer life and reduce failure rates by allowing improved core expansion and contraction during normal heat cycles.
- We design and manufacture all our radiators to meet or even exceed Original Equipment specifications. We take pride in producing the most reliable replacement parts in the market.
- We use longer header tabs for increased pressure resistance. This reduces the potential for tank to header leaks.
Carquest Premium – Radiator (Part No.432679)
from
$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.
Product Features:
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Product Features:
- Our B-type tubes feature central reinforcement to provide greater tolerance to pressure. Stronger tube design means drastically reduced probability of tube failure.
- Our deep extrusion header provides a stronger tube to header joint which is more resistant to the effects of vibration and thermal tube expansion, virtually eliminating tube to header leaks.
- Our fin edges are folded for increased stability and heat disbursement properties.
- Our included “multi-fit” attachments allow one radiator to cover multiple vehicle applications without sacrificing OE fit. This results in wider vehicle coverage with substantially less inventory.
- Thermal expansion cuts allow for longer life and reduce failure rates by allowing improved core expansion and contraction during normal heat cycles.
- We design and manufacture all our radiators to meet or even exceed Original Equipment specifications. We take pride in producing the most reliable replacement parts in the market.
- We use longer header tabs for increased pressure resistance. This reduces the potential for tank to header leaks.
KAI – Radiator (Part No.RAD13053)
from
$162.99
New Platinum Pro Radiator, 2.3 Liter Engine, Without Turbo, Automatic Transmission
Product Features:
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Product Features:
- 2.3 Liter Engine, Without Turbo, Automatic Transmission, Made Of Plastic and Aluminum
- Meets All Federal Motor Safety Standards
- No Drilling Needed For Installation
- No Modifications Needed For Installation
- Direct Fit Replacement For Your Vehicle
- Same Form Fit And Function As OE
- Warranty: 5 Year, Limited
- Radiator Cap Not Included
- Check Out The Large Selection Of Parts Available For Your Vehicle
Carquest Premium – Standard Thermostat: 192 Degrees (Part No.14139)
from
$11.49
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.
Product Features:
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Product Features:
- High grade stainless steel and copper construction
- Meets or exceeds OEM standards
- Consistent and precise response to cooling system needs
- Original equipment design for worry-free direct fit replacement
- 100% tested and calibrated
Motorad UltraStats – UltraStat Thermostat: 180 Degrees (Part No.5319-180)
from
$17.99
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.
Product Features:
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Product Features:
- Exclusive BLVT Valve Technology minimizes thermal shock to cooling system components
- Heavy gauge stainless steel components offer increased reliability and long-lasting durability
- Stainless steel thermal element for unmatched corrosion resistance and revolutionary REAX wax mixture provides quicker reaction time
- AccuSpring Design for stable temperature control and increased cabin comfort
Motorad – Integrated Thermostat Housing: With Seal, 180 Degrees (Part No.512-185)
from
$46.99
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.
Product Features:
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Product Features:
- High grade stainless steel and copper construction
- Meets or exceeds OEM standards
- Consistent and precise response to cooling system needs
- Original equipment design for worry-free direct fit replacement
- 100% tested and calibrated
Dorman – Coolant Housing/Water Outlet: with Gasket, Housing, and Thermostat (Part No.902-5198)
from
$52.99
This replacement engine coolant thermostat housing is engineered to match the fit and durability of the stock thermostat housing on specified vehicles. It is designed to withstand extreme temperature changes to extend service life.
Product Features:
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Product Features:
- Ideal replacement – this engine coolant thermostat housing directly replaces the original housing on specified vehicle years, makes and models
- Durable construction – this part is specifically designed to withstand extreme temperature changes and resist cracking and leaking
- Cost-effective and reliable – offers original manufacturer quality at lower cost than getting replacement at dealer
- Industry-leading design – professionally engineered by the aftermarket leader in replacement thermostat housings
Dorman – Coolant Housing/Water Outlet: with Housing and Gasket, 90 Degree Neck Angle (Part No.902-1105)
from
$39.49
This replacement engine coolant thermostat housing is engineered to match the fit and durability of the stock thermostat housing on specified vehicles. It is designed to withstand extreme temperature changes to extend service life.
Product Features:
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Product Features:
- Ideal replacement – this engine coolant thermostat housing directly replaces the original housing on specified vehicle years, makes and models
- Durable construction – this part is specifically designed to withstand extreme temperature changes and resist cracking and leaking
- Cost-effective and reliable – offers original manufacturer quality at lower cost than getting replacement at dealer
- Industry-leading design – professionally engineered by the aftermarket leader in replacement thermostat housings
Motorad – Coolant Housing/Water Outlet (Part No.CH6129)
from
$58.99
Manufactured to the highest OEM quality standards by an OE Supplier, using proprietary material to stand up to even the most demanding automotive cooling systems. Thermal shock validated and 100% leak tested Meets or exceeds all OEM standards.
Product Features:
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Product Features:
- Easy, one step fit and installation
- No special tools required
- Meets or exceeds all OEM standards
Dorman – Non-Pressurized Coolant Reservoir: Black, Plastic, Original Equipment Replacement (Part No.603-963)
from
$44.99
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.
Product Features:
See More
Product Features:
- Direct replacement – this engine coolant reservoir matches the fit and function of the original part
- Ideal solution – engineered for a seamless installation
- Durable construction – manufactured from quality materials to withstand underhood heat and vibration
- Trustworthy design – backed by 100 years of automotive aftermarket experience
KAI – Coolant Reservoir (Part No.MA3014114)
from
$23.99
New Platinum Pro Coolant Recovery Tank, With Cap
Product Features:
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Product Features:
- With Cap, Made Of Plastic
- Meets All Federal Motor Safety Standards
- No Drilling Needed For Installation
- No Modifications Needed For Installation
- Direct Fit Replacement For Your Vehicle
- Same Form Fit And Function As OE
- Check Out The Large Selection Of Parts Available For Your Vehicle
Dorman – Non-Pressurized Coolant Reservoir (Part No.603-543)
from
$71.99
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.
Product Features:
See More
Product Features:
- Direct replacement – this engine coolant reservoir matches the fit and function of the original part
- Ideal solution – engineered for a seamless installation
- Durable construction – manufactured from quality materials to withstand underhood heat and vibration
- Trustworthy design – backed by 100 years of automotive aftermarket experience
Popular 2018 Mazda 6 Engine Cooling Parts Categories
Most Popular Thermostats for 2018 Mazda 6s
Enhance your 2018 Mazda 6 with one of the 4 Thermostats we have in stock, starting at just $16.99.
Carquest Premium – Standard Thermostat: 180 Degrees (Part No.14048)
from
$16.99
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.
Product Features:
See More
Product Features:
- High grade stainless steel and copper construction
- Meets or exceeds OEM standards
- Consistent and precise response to cooling system needs
- Original equipment design for worry-free direct fit replacement
- 100% tested and calibrated
Motorad UltraStats – UltraStat Thermostat: 180 Degrees (Part No.5319-180)
from
$17.99
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.
Product Features:
See More
Product Features:
- Exclusive BLVT Valve Technology minimizes thermal shock to cooling system components
- Heavy gauge stainless steel components offer increased reliability and long-lasting durability
- Stainless steel thermal element for unmatched corrosion resistance and revolutionary REAX wax mixture provides quicker reaction time
- AccuSpring Design for stable temperature control and increased cabin comfort
Motorad – Engine Coolant Control Valve: Includes Thermostat, Housing, Seal (Part No.TA9249)
from
$1133.00
MotoRad Coolant Control Valves are designed and tested to provide precise and quick coolant redirection for every application. Manufactured using the finest OEM approved materials and electrical isolation features for increased durability and safety in the most extreme temperatures and conditions. All MotoRad Coolant Control Valves are designed to meet or exceed OEM specifications at our ISO TS16949 manufacturing facilities.
Product Features:
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Product Features:
- An efficient Coolant Control Valve is critical to cooling the engine and other components by ensuring the coolant is directed to the proper channel where needed
- Designed to meet or exceed OE in fit, form and function
- 100% factory tested to ensure proper signal response and isolation providing unmatched performance and quality
- 100% factory tested to ensure proper signal response and isolation providing unmatched performance and qualityá
- Manufactured using the highest quality materials for increased durability in even the most extreme environments.
- Extensive product testing includes high/low temperature impact, thermal vibration, durability, static electricity, and micro tension, among other tests, to ensure all Coolant Control Valves meet or exceed OEM specifications
Carquest Premium – Standard Thermostat: With Seal, 190 Degrees (Part No.1073-190)
from
$40.99
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.
Product Features:
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Product Features:
- High grade stainless steel and copper construction
- Meets or exceeds OEM standards
- Consistent and precise response to cooling system needs
- Original equipment design for worry-free direct fit replacement
- 100% tested and calibrated
Best-Selling 2018 Mazda 6 Coolant Reservoirs
Upgrade your 6 with one of our 2 best-selling Coolant Reservoirs.
Dorman – Non-Pressurized Coolant Reservoir: Black, Plastic, Original Equipment Replacement (Part No.603-963)
from
$44.99
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.
Product Features:
See More
Product Features:
- Direct replacement – this engine coolant reservoir matches the fit and function of the original part
- Ideal solution – engineered for a seamless installation
- Durable construction – manufactured from quality materials to withstand underhood heat and vibration
- Trustworthy design – backed by 100 years of automotive aftermarket experience
KAI – Coolant Reservoir (Part No.MA3014114)
from
$23.99
New Platinum Pro Coolant Recovery Tank, With Cap
Product Features:
See More
Product Features:
- With Cap, Made Of Plastic
- Meets All Federal Motor Safety Standards
- No Drilling Needed For Installation
- No Modifications Needed For Installation
- Direct Fit Replacement For Your Vehicle
- Same Form Fit And Function As OE
- Check Out The Large Selection Of Parts Available For Your Vehicle
Top-Quality Radiators for 2018 Mazda 6s
Choose a high-quality OEM or aftermarket Radiator for Mazda 6s and enjoy top-notch performance from $181.99.
Carquest Premium – Radiator (Part No.813367)
from
$181.99
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.
Product Features:
See More
Product Features:
- Our B-type tubes feature central reinforcement to provide greater tolerance to pressure. Stronger tube design means drastically reduced probability of tube failure.
- Our deep extrusion header provides a stronger tube to header joint which is more resistant to the effects of vibration and thermal tube expansion, virtually eliminating tube to header leaks.
- Our fin edges are folded for increased stability and heat disbursement properties.
- Our included “multi-fit” attachments allow one radiator to cover multiple vehicle applications without sacrificing OE fit. This results in wider vehicle coverage with substantially less inventory.
- Thermal expansion cuts allow for longer life and reduce failure rates by allowing improved core expansion and contraction during normal heat cycles.
- We design and manufacture all our radiators to meet or even exceed Original Equipment specifications. We take pride in producing the most reliable replacement parts in the market.
- We use longer header tabs for increased pressure resistance. This reduces the potential for tank to header leaks.
Our Top Pick for a 2018 Mazda 6 Radiator Cap
Invest in a
durable Radiator Cap for your 2018 Mazda, knowing you’re getting trusted brands and expert craftsmanship.
Dorman – Help – Radiator Cap (Part No.54237)
from
$22.99
This radiator cap is designed to match the fit and function of the original cap on specified vehicles, and is engineered for durability and reliable performance.
Product Features:
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Product Features:
- Direct replacement – this radiator cap is designed to match the fit and function of the original cap on specified vehicles
- Restores functionality – reliable replacement for an original cap that is missing, leaking or failed due to gasket fatigue and heat
- Durable construction – this part is made from quality materials to ensure reliable performance and long service life
- Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
Our Water Pumps for 2018 Mazda 6s
Make a smart move for your 2018 Mazda 6 with our Water Pump for $98.99.
Carquest Premium – Engine Water Pump: New, Gasket/Seals Included (Part No.T1295)
from
$98.99
This premium water pump uses new high-quality components and is designed to meet or exceed OE specifications. This pump is 100% tested to ensure quality. Bearings, gaskets, seals, impeller, hub and housing are all designed for long-lasting service life. All necessary gaskets and seals are included.
Product Features:
See More
Product Features:
- 100% tested for reliable performance
- Durable housing features precisely machined mounting surface for proper sealing and fitment
- Equipped with weep chamber or similar feature to help prevent unnecessary replacement
- Included heavy-duty unitized bearings, pressed-on hubs and optimal impeller clearance for a long-lasting water pump
- All gaskets or seals necessary for water pump are included
- This pump is driven by the accessory belt and we recommend replacement if nearing service recommendation
- This pump is driven by the timing chain; see vehicle manufacturer recommendation for replacement of timing components
- This pump is driven by the timing belt; see vehicle manufacturer recommendation for replacement of timing components
- Additional Notes: Includes gasket
Top-Rated Engine Cooling Part Brands For Your 2018 Mazda 6
When it comes to finding the perfect Engine Cooling Part for your 2018 Mazda 6, Advance Auto Parts has you covered with a wide selection of high-quality OEM and aftermarket options from 6 trusted brands. We carry the most popular Engine Cooling Part brands including Carquest Premium, and more, all known for their exceptional customer ratings (average brand rating of 4.4 stars) and competitive prices, as low as $14.99. Purchasing a Engine Cooling Part from us here at Advance Auto Parts is a smart move for both you and your 2018 Mazda 6, providing peace of mind with parts that meet or exceed OEM standards.
Popular Carquest Premium 2018 Mazda 6 Engine Cooling Parts
If you’re looking for a top-quality Engine Cooling Part for your 2018 Mazda 6, Advance Auto Parts has exactly what you need with our selection of Carquest Premium Engine Cooling Parts. We have 2 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 $18.49, you’ll find the perfect Engine Cooling Part for your needs and budget. Carquest Premium Engine Cooling Parts for the 2018 Mazda 6 come highly rated, with over 234 customer reviews and an impressive average rating of 4.4 stars. Choosing a Carquest Premium Engine Cooling Part from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.
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Radiator Cap: 16 PSI
“Mustang was heating up. Found out was cap. This cap pops to release pressure so not to pop radiator. Works great. Will buy again when needed.”
FAQs for 2018 Mazda 6 Engine Cooling Parts
What are the best-selling Engine Cooling Parts for 2018 Mazda 6s?
Out of 17 Engine Cooling Parts that fit 2018 Mazda 6s, the following parts are the top sellers:
- UltraStat Thermostat: 180 Degrees (11920684) – $17.99
- Radiator Cap Tester Adapter (17090203) – $18.99
- Engine Water Pump: New, Gasket/Seals Included (10661102) – $98.99
What’s the price range for 2018 Mazda 6 Engine Cooling Parts?
The prices of Engine Cooling Parts for the 2018 Mazda 6 range from $3.99 up to $1,133.00 for the most premium parts.
What is the average price of an Engine Cooling Part for a 2018 Mazda 6?
The average price for Engine Cooling Parts for the 2018 Mazda 6 is $113.07. 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 6 model years?
What are the cheapest Engine Cooling Parts for my 2018 Mazda 6?
The cheapest 2018 Mazda 6 Engine Cooling Parts we carry are:
- Coolant Temperature Sensor 1TS1194 (12422961) – $3.99
- Engine Coolant Thermostat Housing Gasket (50314170) – $6.29
- Radiator Cap: 16 PSI (17110021) – $14.99
- Standard Thermostat: 180 Degrees (5481198) – $16.99
- UltraStat Thermostat: 180 Degrees (11920684) – $17.99
Does Advance Auto Parts sell Engine Cooling Parts for any other 2018 Mazda models?
Yes. We stock Engine Cooling Parts for 3 other popular 2018 Mazda models. Some of the most popular are 2018 CX-9 Engine Cooling Parts, 2018 CX-5 Engine Cooling Parts, 2018 MX-5 Miata Engine Cooling Parts, and 2018 CX-3 Engine Cooling Parts.
What types of Engine Cooling Parts do you sell for my 2018 Mazda 6?
As of 3/1/26, these are some of the most in-demand types of Engine Cooling Parts for a 2018 Mazda 6:
Can I get help with 2018 Mazda 6 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 6 Engine Cooling Parts?
Advance Auto Parts keeps returns simple. For new Mazda 6 Engine Cooling Parts and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.