Lexus RX400H Engine Cooling Parts

Your One-Stop Shop For Trusted Lexus RX400H Engine Cooling Parts

If you’re in search of Lexus RX400H Engine Cooling Parts aftermarket or OEM parts, consider your search over! Advance Auto Parts carries 50 Engine Cooling Parts from top brands with prices ranging from $1.22 to $259.39.

Beyond great prices, we stock trusted brands manufacturing all types of Engine Cooling Parts for your Lexus RX400H. Of the 24 OEM and aftermarket parts brands we carry, some of the most popular are Permatex, Carquest Premium, and Felpro.

And don’t forget to read customer reviews across all Engine Cooling Parts categories in our catalog. Buy with confidence by leveraging past customer experiences of our aftermarket and OEM parts.

At Advance Auto Parts, we don’t think top quality Engine Cooling Parts have to cost top dollar, and we prove it. Browse our top Lexus RX400H Engine Cooling Parts below, order online to ship to your home, or head into your nearest Advance Auto Parts location to get started.

Essential Lexus RX400H Engine Cooling Parts

Autopart International Inc – Radiator (Part No.G10002004250API)

Radiator

from

$166.76
Radiator

Ishino – Water Inlet Gasket, O-ring (Part No.G3042168546ISH)

Water Inlet Gasket, O-ring

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$3.57
Water Inlet Gasket, O-ring

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

Radiator Cap: 13 PSI

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:
  • 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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Stant – THERMOSTAT SEAL (Part No.27286)

THERMOSTAT SEAL

from

$1.49
THERMOSTAT SEAL

Carquest Premium – Multi Purpose Relay (Part No.RAA1244)

Multi Purpose Relay

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$40.99
Carquest premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.
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Dorman – Coolant Housing/Water Outlet: With Housing (Part No.902-5860)

Coolant Housing/Water Outlet: With Housing

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$226.99
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:
  • 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
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Flex A Lite – Trimline Straight Blade Electric Fan (Part No.114)

Trimline Straight Blade Electric Fan

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$125.99
Trimline Straight Blade Electric Fan

Permatex – Ultra Grey RTV Silicone Gasket Maker, 13 OZ (Part No.82195)

Ultra Grey RTV Silicone Gasket Maker, 13 OZ

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$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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Elring – SEAL RING – COPPER (Part No.4M20011240ELR)

SEAL RING - COPPER

from

$1.22
SEAL RING – COPPER

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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Carquest Premium – Multi Purpose Relay (Part No.RAA1522)

Multi Purpose Relay

from

$29.49
Carquest premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.
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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

from

$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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Bosch – Water Pump (Part No.G3000294542BOS)

Water Pump

from

$81.14
100% New for maximum cooling and optimum performance. Restore your vehicle’s cooling system to proper working order, and minimize the risk of premature failure, by installing a Bosch 100% New Water Pump. Bosch Water Pumps are designed to operate in the highly-stressful environment of today’s cooling systems. Each pump features 100% new, OEM-quality components. Nothing is remanufactured. Count on Bosch 100% New Water Pumps for superior performance and maximum service life, and be assured that the heart of your vehicle’s cooling system will pump reliably for years to come.

Product Features:
  • OE-Equivalent and direct fit application.
  • 100% new with no remanufactured parts.
  • Precision pressed hub and impeller.
  • Precision unitized bearing assembly.
  • Precision machined mounting surfaces.
  • Includes all gaskets and hardware.
  • Optimum cooling performance and longevity.
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Delphi – Engine Coolant Temperature Sensor (Part No.TS10198)

Engine Coolant Temperature Sensor

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$41.49
Delphi temperature sensors are built with the latest OE technology; Delphi temperature sensors use durable, one-piece design; Delphi temperature sensors are impervious to electrical noise and interference.

Product Features:
  • Delphi temperature sensors deliver accurate readings and optimal performance
  • Delphi’s one-piece design and automated production process eliminates internal connectors and failure points
  • Each sensor is electrically insulated to eliminate interference from other components in the vehicle
  • Delphi temperature sensors are impervious to electrical noise and interference
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Carquest Premium – Standard Thermostat: 180 Degrees (Part No.14078)

Standard Thermostat: 180 Degrees

from

$17.79
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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Carquest Premium – Coolant Housing/Water Outlet (Part No.85353)

Coolant Housing/Water Outlet

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$56.99
We are proud to offer this CARQUEST product line: CARQUEST Water Outlets. Our products are engineered and tested to provide years of trouble free operation and designed to be hassle free OE replacement part that meets and/or exceeds OE standards. Backed by over 50 years of mobile temperature control experience, fix it once and fix it right with CARQUST Water Outlets and Thermostat Housings.

Product Features:
  • Meets and/or exceeds OEM standard
  • Includes quality gasket or O-ring to ensure proper seal (where applicable)
  • Coated with corrosion and rust inhibitor
  • 100% leak tested
  • Direct-fit replacement for ease of installation
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DENSO – First Time Fit Relay (Part No.567-0005)

First Time Fit Relay

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$15.99
DENSO+s First Time Fit relays are no different from the OE relays DENSO has manufactured for over 60 years + built to be quiet, efficient, and reliable. Designed and manufactured to outlast the closest competitor by a minimum of ten times more life cycles, DENSO+s First Time Fit Relays will most likely out last your car. Holding approximately 30,000 active patents worldwide – approximately 7,300 in the United States – DENSO is going all out to design groundbreaking systems and components tuned especially to consumers’ specifications – whether they are drivers, passengers, pedestrians or society as a whole.

Product Features:
  • Lifecycle lasts up to 10 times longer than the competitor’s
  • Flux free micro arc welding versus competitors that solder
  • High conductive material that does not corrode
  • Shortest path for the electrical current improves efficiency
  • Offered by world’s largest relay manufacturer
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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.12024)

Radiator Cap Tester Adapter

from

$16.49
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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Felpro – Engine Coolant Thermostat Seal (Part No.35445)

Engine Coolant Thermostat Seal

from

$5.49
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:
  • 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
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Carquest Premium – Reservoir Cap (Part No.T127)

Reservoir Cap

from

$9.79
Reservoir Cap

Engine Cooling Parts Brands You Can Trust For Your Lexus RX400H

24 trusted brands of Engine Cooling Parts line our shelves, ready to help keep your Lexus RX400H running smooth. Below are some of the most popular brands and their top Engine Cooling Parts offerings:

Popular Bosch Engine Cooling Parts

Bosch products for the Lexus RX400H span several categories. Some of the highest-rated Bosch Engine Cooling Parts that will fit your Lexus RX400H are:
Water Pump
from $81.14
(1)
Water Pump
Water Pumps

Most Purchased Lexus RX400H Engine Cooling Parts from Permatex

When you buy the most frequently purchased Permatex brand Engine Cooling Parts, you can be confident it will be the right part for your Lexus RX400H. Here are the Permatex Engine Cooling Parts Advanced Auto customers buy the most:
Water Pump & Thermostat RTV Silicone Gasket Maker, 0.5 OZ
from $6.99
(288)
Water Pump & Thermostat RTV Silicone Gasket Maker, 0.5 OZ
Water Pump Gaskets
Standard Thermostat: 180 Degrees
from $17.79
(75)
Standard Thermostat: 180 Degrees
Thermostats
Coolant Temperature Sensor
from $25.99
This product is not rated
Coolant Temperature Sensor
Coolant Temperature Sensors

FAQs for Lexus RX400H Engine Cooling Parts

What are the most purchased Engine Cooling Parts for the Lexus RX400H?

Out of 50 Engine Cooling Parts for the Lexus RX400H, the most popular in our inventory are:
Standard Thermostat: 180 Degrees
from $17.79
(75)
Standard Thermostat: 180 Degrees
Thermostats
Engine Coolant Thermostat Seal
from $5.49
(76)
Engine Coolant Thermostat Seal
Engine Coolant Pipe Seals
Radiator Cap: 13 PSI
from $14.99
(53)
Radiator Cap: 13 PSI
Radiator Caps

What are the top-rated Lexus RX400H Engine Cooling Parts?

Top-rated Engine Cooling Parts for your Lexus RX400H based on customer reviews/ratings are:
Standard Thermostat: 170 Degrees
from $17.29
(33)
Standard Thermostat: 170 Degrees
“Works great. No complaints”
Engine Water Pump: New, Gasket/Seals Included
from $83.99
(13)
Engine Water Pump: New, Gasket/Seals Included
“Replaced on a 1996 Toyota Camry 2.2 engine. Great price with code entry, and as always Advance Auto Parts had it in stock! The water pump is the exac”
Thermostat
from $8.79
(9)
Thermostat
“Works great”