2003 Infiniti FX45 Engine Cooling Parts

Essential 2003 Infiniti FX45 Engine Cooling Parts

Dorman – Engine Coolant Thermostat Housing (Part No.G4010139563DOR)

Engine Coolant Thermostat Housing

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$25.14
Dorman’s Engine Coolant Thermostat Housing has improved durability and resistance. It withstands the extreme changes in temperature that frequently cause housing to become brittle, crack and leak. Maintain the steady flow of coolant and lessen the chances of overheating.

Product Features:
  • Direct replacement for a proper fit every time
  • Hoses slide on for easy installation
  • High-quality plastic or metal construction
  • Includes all hardware necessary for a complete repair (where applicable)
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Carquest Premium – Universal Fan Clutch – 6" Import/Compact (Part No.215062)

Universal Fan Clutch - 6" Import/Compact

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$85.99
Product Features:
  • Designed, tested, and built by application
  • OE performance, fit, and appearance
  • Precision machined
  • Out of box installation
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Permatex – Ultra Grey RTV Gasket Maker (9.5 oz.) (Part No.85084)

Ultra Grey RTV Gasket Maker (9.5 oz.)

from

$32.99
OEM specified. Designed specially for high-torque and high vibration applications, like those common in import engines, this premium RTV gasket maker exceeds manufacturers’ performance requirements. Sensor-safe, low odor, and non-corrosive. Maximum vibration resistance, with outstanding resistance to oils, cooling and shop fluids. Temperature range -65ºF to 500ºF (-54 Deg. C to 260 Deg. C) intermittent.

Product Features:
  • Designed specially for high-torque and high vibration applications
  • Maximum vibration resistance with outstanding resistance to oils, cooling and shop fluids
  • OEM specified
  • Low-odor, non-corrosive formula
  • Temperature Range: -65 Deg. F to 500 Deg. F (-54 Deg. C to 260 Deg. C)
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Carquest Premium – Radiator Cap Tester Adapter (Part No.12021)

Radiator Cap Tester Adapter

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$17.79
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:
  • Machined metal construction
  • Works with MT-300 pressure tester
  • Tests coolant caps
  • Professional quality
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Permatex – The Right Stuff: Grey, 1 Minute Gasket Maker, 10 OZ (Part No.34310)

The Right Stuff: Grey, 1 Minute Gasket Maker, 10 OZ

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$38.99
Permatex’s The Right Stuff 1 Minute Series offers the fastest return to service in just 1 minute! This leak-proof, elastomeric “Formed-in-place” material is more reliable and longer lasting than pre-cut gaskets. It is blowout resistant and protects against leaks and seepage caused by vibration and thermal expansion. The Right Stuff 1 Minute Grey is specified for high torque and high vibration applications and is formulated to meet or exceed performance standards for long-term sealability, durability and handling.

Product Features:
  • Designed to perform under higher torque loads associated with engines having closely spaced bolt patterns
  • Sensor-safe, non-corrosive, RTV silicone
  • Protects against leaks caused by vibration and thermal expansion
  • Meets performance specs of OE silicone gaskets
  • Quickly returns vehicle to service in just 1 minute
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NTK – Engine Coolant Temperature Sensor (Part No.EF0107)

Engine Coolant Temperature Sensor

from

$34.99
The Engine Coolant Temperature Sensor determines the exact temperature of the engine coolant by sending an analog signal to the ECM to censure proper air/fuel ratio along with proper operation of the cooling fan(s) 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:
  • OE MATCHED: Wires and probe length match OE. Mounting clip(s) included where applicable
  • FASTER RESPONSE TIME: Thermal conductive grease inside brass housing increases sensor response time
  • THE NTK 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
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Carquest Premium – Radiator: With Transmission Oil Cooler (Part No.432700)

Radiator: With Transmission Oil Cooler

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$236.99
Carquest Premium radiators are designed and engineered for maximum performance, using the highest-grade materials to ensure all radiators meet or exceed original equipment (O.E.) fit, form and function. Carquest Premium radiators are built by manufacturers that meet IATF 16949 certified framework, an internationally recognized proof of quality in the automotive industry. Most modern vehicles use radiators with plastic tanks and our parts are engineered with integrated ribbing to prevent damage during thermal cycling. Carquest Premium radiators are also 100% tested to ensure a durable, leak-free cooling system repair.

Product Features:
  • Thermal tested under real-life temperature simulations
  • High tensile strength aluminum for maximum crimp strength
  • Plastic tanks are engineered with integrated ribbing for added strength to withstand cracks, bowing and distortion during thermal cycles
  • Thermal expansion slots extend core life and reduce failure rates by allowing improved core expansion and contraction during systematic heat cycles
  • Oil cooler designs meet or exceed OE standards, keeping the vehicle’s engine and transmission performing at optimal conditions
  • OEM grade, premium fittings for transmission or engine oil coolers (where applicable)
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KAI – Radiator (Part No.RAD2671)

Radiator

from

$136.99
New Platinum Pro Radiator, 4.5 Liter V8 Engines, Automatic Transmission, 1 Row Core

Product Features:
  • 4.5 Liter V8 Engines, Automatic Transmission, 1 Row Core, 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
  • Check Out The Large Selection Of Parts Available For Your Vehicle
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Dorman – Radiator Mount Bushing (Part No.926-281)

Radiator Mount Bushing

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$8.99
This radiator mount bushing is designed to match the fit and function of the original part on specified vehicles. Made of quality materials, it is engineered for reliable performance.

Product Features:
  • Direct replacement – this radiator mount bushing matches the fit and function of the factory part on specified years, makes and models
  • Ideal solution – this bushing is a reliable replacement for an original part that has failed due to fatigue
  • 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
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Permatex – Ultra Grey RTV Silicone Gasket Maker, 13 OZ (Part No.82195)

Ultra Grey RTV Silicone Gasket Maker, 13 OZ

from

$26.99
Permatex Ultra Grey is specified for high torque and high vibration applications. Ultra Grey offers a sensor-safe, low odor, non-corrosive formula and is OEM specified to fit dealership warranty requirements. This high performance gasket maker meets performance specs of OE silicone gaskets and can be used on high torque and vibration applications such as valve covers, water pump, intake manifold end seals ad thermostat housings.

Product Features:
  • High torque and rigidity
  • Sensor-safe, non-corrosive formula
  • OEM specified
  • Low-odor, non-corrosive formula
  • Ideal for closed spaced bolt patterns
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Carquest Premium – Radiator Cap: 13 PSI (Part No.10327)

Radiator Cap: 13 PSI

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$18.79
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:
  • 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
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Dorman – Help – Engine Coolant Reservoir Cap: Flip Top, Plastic, 1 Pack (Part No.54245)

Engine Coolant Reservoir Cap: Flip Top, Plastic, 1 Pack

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$9.99
Cracked or lost the original engine coolant reservoir cap? Replace it seamlessly and effectively with this precisely engineered, direct replacement cap.

Product Features:
  • Direct replacement – this engine coolant reservoir cap directly replaces a cracked or lost original cap
  • Application specific – made to match dimensions of reservoir cap on only certain vehicle years, makes and models
  • Seamless fit – reverse-engineered from the original equipment to fit perfectly
  • Excellent value – a quick, easy replacement that’s less expensive than going back to the dealership
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Ishino – Fuel Injector O-Ring (Part No.C101245500ISH)

Fuel Injector O-Ring

from

$1.24
Fuel Injector O-Ring

Carquest Premium – Standard Thermostat: With Seal, 203 Degrees (Part No.15112)

Standard Thermostat: With Seal, 203 Degrees

from

$18.29
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:
  • 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
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AISIN – Thermostat (Part No.G4000928163ASC)

Thermostat

from

$36.32
Thermostat

Motorad UltraStats – Thermostat: 170 Degrees (Part No.5302-170)

Thermostat: 170 Degrees

from

$23.99
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:
  • Heavy gauge stainless steel components offer increased reliability and long-lasting durability
  • Exclusive BLVT Valve Technology minimizes thermal shock to cooling system components
  • 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
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Sankei Switches – Sankei Switches Radiator Cap (Part No.G1010121551SAK)

Sankei Switches Radiator Cap

from

$12.25
The Sankei Switches radiator cap range has been developed to operate within original equipment manufacturer’s specifications. A faulty radiator cap can cause your car to boil-over at a lower temperature. Test or replace the coolant cap when servicing the cooling system.

Product Features:
  • Meets Original Equipment specifications.
  • Made from premium materials.
  • Designed to function on open cooling systems and overflow reservoir type systems.
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Carquest Premium – Auxiliary Water Pump: New, Mounting Gasket Included (Part No.T3140)

Auxiliary Water Pump: New, Mounting Gasket Included

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$209.99
Carquest Premium water pumps are 100% new, high-quality parts that meet or exceed original equipment (O.E.) specifications. All components, including the housing, hub, bearings, gaskets and seals are designed for long-lasting service life. These water pumps are supplied with the gaskets or seals necessary for installation. Our Carquest Premium water pumps undergo stringent testing to ensure superior performance that we stand behind with an industry-leading warranty.

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
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Hitachi – OE Replacement Water Pump (Part No.G3000139557HIT)

OE Replacement Water Pump

from

$121.68
The Hitachi water pump is a 100% new replacement that contains no remanufactured components, assuring original equipment performance, quality and fit.

Product Features:
  • OE-Equivalent and direct fit application.
  • 100% new with no remanufactured parts.
  • Resistant to corrosion.
  • Unitized bearing assembly.
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Permatex – Ultra Grey RTV Silicone Gasket Maker, 0.5 OZ (Part No.22074)

Ultra Grey RTV Silicone Gasket Maker, 0.5 OZ

from

$6.99
Permatex Ultra Grey is specified for high torque and high vibration applications. Ultra Grey offers a sensor-safe, low odor, non-corrosive formula and is OEM specified to fit dealership warranty requirements. This high performance gasket maker meets performance specs of OE silicone gaskets and can be used on high torque and vibration applications such as valve covers, water pump, intake manifold end seals ad thermostat housings.

Product Features:
  • High torque and rigidity
  • Sensor-safe, non-corrosive formula
  • OEM specified
  • Low-odor, non-corrosive formula
  • Ideal for closed spaced bolt patterns
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Permatex – Water Pump & Thermostat RTV Silicone Gasket Maker, 0.5 OZ (Part No.22071)

Water Pump & Thermostat RTV Silicone Gasket Maker, 0.5 OZ

from

$6.99
Permatex Water Pump & Thermostat RTV Silicone Gasket Maker is a noncorrosive, sensor-safe RTV silicone gasket material formulated for water pumps and thermostat housings. Permatex Water Pump & Thermostat has the highest water-glycol resistance available in an RTV silicone.

Product Features:
  • Sensor-safe, noncorrosive RTV silicone gasket material
  • Formulated specifically for water pumps and thermostat housings
  • Highest water-glycol resistance available in RTV silicone
  • Superior adhesion and flexibility
  • Can be used as a gasket maker or dressing
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Ishino Stone – Water Pipe O-Ring (Part No.G2026550536ISH)

Water Pipe O-Ring

from

$2.33
Water Pipe O-Ring

2003 Infiniti FX45 Engine Cooling Parts

Maybe you’re in the middle of a full rebuild of that 2003 Infiniti FX45. Maybe you just need a couple of Engine Cooling Parts. Either way, Advance Auto Parts has 38 different Engine Cooling Parts in our inventory ranging from $1.24 to $236.99. That means you can find the exact parts or products you need to keep that 2003 Infiniti FX45 running smoothly.

Engine Cooling Parts are only as good as their brand. We stock 14 different brands to make sure you have plenty of trusted parts to choose from for your 2003 Infiniti FX45. Permatex, Carquest Premium, and Motorad UltraStats are just some of the brands we stock. Search for brands you know or compare prices and reviews to help you decide!

We know you’ll find the perfect Engine Cooling Parts for your 2003 Infiniti FX45, but don’t take our word for it – read our customer ratings and reviews and buy with confidence. Out of the 617 reviews in this category, some of the top rated parts include Radiator Cap: 13 PSI with 4.0 stars and Standard Thermostat: With Seal, 203 Degrees with 3.8 stars.

So if you’re in the market for aftermarket Engine Cooling Parts to keep your 2003 Infiniti FX45 rolling for years to come, look no further. Shop online and have your products shipped direct to your door, or pick up at the nearest Advance Auto Parts location today!

Engine Cooling Parts Brands To Make Your 2003 Infiniti FX45 Last

Simple repair, complete replacement, or a full rebuild. No matter the job, your 2003 Infiniti FX45 demands trusted brand parts and products to keep it running. Many trusted brands of Engine Cooling Parts make up Advance Auto Parts’ inventory, and all are ready to help make your FX45 the best it can be. Be sure to browse some of our top Engine Cooling Parts brands and parts.

Popular Dorman – Help Engine Cooling Parts

We carry Dorman – Help parts in our stock across Coolant Reservoir Caps categories, plus more. For a 2003 Infiniti FX45, our most popular Dorman – Help Engine Cooling Parts include:
Engine Coolant Reservoir Cap: Flip Top, Plastic, 1 Pack
from $9.99
(6)
Engine Coolant Reservoir Cap: Flip Top, Plastic, 1 Pack
Coolant Reservoir Caps

FAQs for 2003 Infiniti FX45 Engine Cooling Parts

What are the most purchased Engine Cooling Parts for the 2003 Infiniti FX45?

Out of 38 Engine Cooling Parts for the 2003 Infiniti FX45, the most popular in our inventory are:
Standard Thermostat: 170 Degrees
from $20.79
(40)
Standard Thermostat: 170 Degrees
Thermostats
Radiator Cap: 13 PSI
from $11.99
(193)
Radiator Cap: 13 PSI
Coolant Reservoir Caps
Standard Thermostat: 180 Degrees
from $19.99
(29)
Standard Thermostat: 180 Degrees
Thermostats

What are the top-rated 2003 Infiniti FX45 Engine Cooling Parts?

Top-rated Engine Cooling Parts for your 2003 Infiniti FX45 based on customer reviews/ratings are:
Radiator Cap: 13 PSI
from $18.79
(21)
Radiator Cap: 13 PSI
“great price, easy install”
Standard Thermostat: With Seal, 203 Degrees
from $18.29
(9)
Standard Thermostat: With Seal, 203 Degrees
“Great”
Thermostat
from $9.29
(8)
Thermostat
“Great product”