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 37 Engine Cooling Parts from top brands with prices ranging from $1.24 to $265.40.

Beyond great prices, we stock trusted brands manufacturing all types of Engine Cooling Parts for your Lexus RX400H. Of the 19 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

Carquest Premium – Reservoir Cap (Part No.T127)

Reservoir Cap

from

$9.79
Reservoir Cap

Flex A Lite – Trimline Straight Blade Electric Fan (Part No.114)

Trimline Straight Blade Electric Fan

from

$125.99
Trimline Straight Blade Electric Fan

AISIN – OE Replacement Water Pump (Part No.G300054487ASC)

OE Replacement Water Pump

from

$119.51
The AISIN Water Pump contains no remanufactured parts and provides optimal cooling without creating excess load to the engine. The highest quality materials are used, creating stronger body design and resistance to corrosion.

Product Features:
  • OE-Equivalent and direct fit application.
  • 100% new with no remanufactured parts.
  • Advanced technological design.
  • Carbon ceramic sealing.
  • Resistant to corrosion.
  • Optimum cooling performance and longevity.
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Felpro – Engine Water Pump Gasket (Part No.35594)

Engine Water Pump Gasket

from

$16.29
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
  • Manufactured for the sealing repair environment
  • Validated for fit, form, and function
  • Quality that you can trust
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Carquest Premium – Coolant Housing/Water Outlet (Part No.85353)

Coolant Housing/Water Outlet

from

$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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Delphi – Engine Coolant Temperature Sensor (Part No.TS10198)

Engine Coolant Temperature Sensor

from

$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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Dorman – Thermostat Housing (Part No.G40102091921DOR)

Thermostat Housing

from

$45.84
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 – 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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Beck/Arnley – Thermostat Gasket (Part No.039-0104)

Thermostat Gasket

from

$5.49
Beck/Arnley parts meet foreign nameplate OE specifications for form, fit and function. Our product specialists work with a network of global sourcing partners so you can install the right part with confidence.

Product Features:
  • Matches OE form, fit and function
  • High quality rubber or composite material designed to withstand high heat conditions
  • Quality construction for durability
  • Packaged in clear plastic for easy visibility and identification of all components
  • Application specific for this vehicle
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Permatex – Sensor-Safe, High Torque RTV Silicone Gasket Maker (Part No.22074)

Sensor-Safe, High Torque RTV Silicone Gasket Maker

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

SEAL RING - COPPER

from

$1.24
SEAL RING – COPPER

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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Carquest Premium – Standard Thermostat: 170 Degrees (Part No.14077)

Standard Thermostat: 170 Degrees

from

$17.29
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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Carquest Premium – Thermostat (Part No.48128)

Thermostat

from

$8.79
Original equipment design provides exact fit and performance.

Product Features:
  • Precise fitting sealing edges prevent leakage and premature cooling.
  • Self-cleaning and self-aligning thermostat valve.
  • Stainless steel assembly and springs are engineered for long life and smooth performance.
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DENSO – First Time Fit Radiator (Part No.G1000466894ND)

First Time Fit Radiator

from

$265.40
DENSO is a leading supplier of radiators to OE car makers around the world. Manufacturers rely on our quality and innovation to remain on the leading edge of engine cooling technology. Our OE experience and know-how ensure our products provide unmatched performance, reliability and fitment. Radiator performance is essential for proper engine cooling and function. DENSO’s radiator configurations, tanks, fin pitch, core dimensions and materials meet OE manufacturer’s rigid standards. All DENSO radiators pass our strict durability and function tests. As the result, our radiators deliver reliable performance even under the most demanding conditions. Radiator types: Plastic tank with aluminum core. Plastic tank with copper core. Cross-flow and down-flow configurations. DENSO is known for the unsurpassed quality of its products. Plastic, copper or aluminum components: it doesn’t matter. Our DENSO radiators are dependable, lightweight and made to last. An investment in a DENSO radiator will pay dividends in the long run. Radiators can fail causing leaks or inefficient cooling. This can lead to your engine to run hotter which in turn creates excess wear and tear on the engine. DENSO radiators are designed with our First Time Fit® philosophy in mind. You get radiators that drop in easily without the need for adjustment, brackets or modification of any kind. Our radiators are precision built to provide the right part, the right fit, the first time.

Product Features:
  • Fin Pitch – Superior fin waves provide a higher heat transfer.
  • Flow Configuration – Available in cross-flow and down-flow configurations.
  • Aluminum or Copper Core – Thin-tube construction assures maximum cooling efficiency.
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Carquest Premium – Radiator (Part No.812929)

Radiator

from

$233.99
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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Felpro – O-RING (Part No.35654)

O-RING

from

$5.99
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:
  • 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
  • Each Fel-Pro gasket, no matter how small, is engineered to exacting standards with proprietary design, engineering and manufacturing processes
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Stant – THERMOSTAT SEAL (Part No.27286)

THERMOSTAT SEAL

from

$1.49
THERMOSTAT SEAL

Permatex – Sensor-Safe, High-Torque RTV Silicone Gasket Maker (Part No.82194)

Sensor-Safe, High-Torque RTV Silicone Gasket Maker

from

$11.49
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
See More

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
See More

Engine Cooling Parts Brands You Can Trust For Your Lexus RX400H

19 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 Beck/Arnley Engine Cooling Parts

Beck/Arnley products for the Lexus RX400H span several categories. Some of the highest-rated Beck/Arnley Engine Cooling Parts that will fit your Lexus RX400H are:
Thermostat Gasket
from $5.49
(25)
Thermostat Gasket
Thermostat and Water Outlet Gaskets

Top Lexus RX400H Engine Cooling Parts from Permatex

Your Lexus RX400H will be purring again thanks to Permatex brand Engine Cooling Parts available for online order or in-store pick up. Popular Permatex parts include:
Water Pump & Thermostat RTV Silicone Gasket Maker, 0.5 OZ
from $6.99
(288)
Water Pump & Thermostat RTV Silicone Gasket Maker, 0.5 OZ
Engine Water Pump Inlet Pipe Gaskets
Sensor-Safe, High-Torque RTV Silicone Gasket Maker
from $11.49
(95)
Sensor-Safe, High-Torque RTV Silicone Gasket Maker
Water Pump Housing Gaskets
Sensor-Safe, High Torque RTV Silicone Gasket Maker
from $6.99
(9)
Sensor-Safe, High Torque RTV Silicone Gasket Maker
Engine Water Pump Inlet Pipe Gaskets

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
Engine Water Pump Inlet Pipe Gaskets
Sensor-Safe, High-Torque RTV Silicone Gasket Maker
from $11.49
(95)
Sensor-Safe, High-Torque RTV Silicone Gasket Maker
Water Pump Housing Gaskets
Standard Thermostat: 180 Degrees
from $17.79
(75)
Standard Thermostat: 180 Degrees
Thermostats

FAQs for Lexus RX400H Engine Cooling Parts

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

Out of 37 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 Water Inlet 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
“Return it”
Engine Water Pump: New, Gasket/Seals Included
from $75.99
(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
“Install with jiggle valve on top to allow air to purge from cooling system.”