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 45 Engine Cooling Parts from top brands with prices ranging from $1.49 to $269.10.

Beyond great prices, we stock trusted brands manufacturing all types of Engine Cooling Parts for your Lexus RX400H. Of the 27 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

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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Stant – THERMOSTAT SEAL (Part No.27286)

THERMOSTAT SEAL

from

$1.49
THERMOSTAT SEAL

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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Carquest Premium – OUTLET FLANGE (Part No.CH2110)

OUTLET FLANGE

from

$192.99
OUTLET FLANGE

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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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 – 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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URO Parts – Water Temperature Sensor (Part No.LNA1600AA)

Water Temperature Sensor

from

$8.99
URO Parts has been a leading brand of replacement auto parts for European vehicles for more than thirty years. Affordable yet dedicated to quality, URO Parts controls its production process in strict accordance with ISO/TS 16949 QMS specifications and offers a wide variety of components used to restore or repair engine, electrical, drive train, braking, steering, suspension, climate control, cooling, exhaust, and fuel systems in classic to late-model German, British, and Scandinavian vehicles. Looking for parts that are even higher quality than original equipment? URO Parts engineers analyze common failures and identify weaknesses in original equipment parts when creating URO Premium components, which are superior to OE in performance and reliability thanks to improved materials and more robust designs. Thanks to high-quality, competitively-priced URO Parts and bulletproof URO Premium replacement components, owning a prestigious European vehicle is no longer an expensive luxury reserved for the elite and wealthy.

Product Features:
  • Guaranteed fitment
  • Direct-fit OE replacement design restores proper factory cooling fan sensor function
  • Easy plug-and-play connection
  • Manufactured using high-quality materials to withstand intense engine compartment and cooling system heat
  • Alloy conductors minimize electrical resistance for accurate operation
  • Designed and tested for reliability and long life
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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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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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Flex A Lite – Trimline Straight Blade Electric Fan (Part No.114)

Trimline Straight Blade Electric Fan

from

$125.99
Trimline Straight Blade Electric Fan

Bosch – Water Pump (Part No.G3000294542BOS)

Water Pump

from

$89.56
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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Carquest Premium – Reservoir Cap (Part No.T127)

Reservoir Cap

from

$9.79
Reservoir Cap

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 engineeredáwith integrated ribbingáfor addedástrength 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
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Dorman – Thermostat Housing (Part No.G40102091921DOR)

Thermostat Housing

from

$54.77
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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Original Equipment – Inverter Coolant Pum (Part No.G7010397070OEA)

Inverter Coolant Pum

from

$262.73
Inverter Coolant Pum

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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Santech – A/C Servo (Part No.R2040275756SII)

A/C Servo

from

$77.51
A/C Servo

Mahle – Engine Coolant Thermostat Gasket (Part No.G403117595MAH)

Engine Coolant Thermostat Gasket

from

$8.35
The Mahle Engine Coolant Thermostat Gasket is a high quality Original Equipment replacement that is manufactured to meet or exceed OE specifications for fit, form, and function.

Product Features:
  • Seals the thermostat housing and helps prevent coolant from leaking from the engine for proper engine temperature
  • Premium Original Equipment replacement
  • Provides performance and dependability
  • Manufactured to meet OE specifications
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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 – A/C Compressor Clutch Relay (Part No.R3130)

A/C Compressor Clutch Relay

from

$40.99
Product Features:
  • Our units are all pre-aligned & pre-adjusted to save installation time and ensure proper switching.
  • A lubricated felt pad that lubricates the cam lobes on the vehicles distributor. This reduces wear on the point set rubbing block, extending the usable life of the part.
  • Ventilated where available, tungsten contacts, which run cooler and exhibit less erosion.
  • The copper-alloy shunt provides superior resistance to breakage, due to the flexing of the moving arm on the point set. It also significantly increases current conductivity over typical steel, shunts.
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Dorman – Coolant Housing/Water Outlet: With Housing (Part No.902-5860)

Coolant Housing/Water Outlet: With Housing

from

$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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Dorman – Thermostat Housing (Part No.G40102091913DOR)

Thermostat Housing

from

$244.96
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)
See More

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

Water Inlet Gasket, O-ring

from

$3.39
Water Inlet Gasket, O-ring

Engine Cooling Parts Brands You Can Trust For Your Lexus RX400H

27 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 $89.56
(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 Housing Gaskets
Standard Thermostat: 180 Degrees
from $17.79
(75)
Standard Thermostat: 180 Degrees
Thermostats
Radiator Cap: 13 PSI
from $14.99
(53)
Radiator Cap: 13 PSI
Radiator Caps

FAQs for Lexus RX400H Engine Cooling Parts

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

Out of 45 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
Thermostat and Water Outlet Gaskets
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
“The part fit perfectly and works fine. No more overheating.”
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
“Works great”