Lexus GS450h Coolant Reservoir Caps

Your Lexus GS450h will be happy to know that the search for the right Coolant Reservoir Caps you’ve been looking for is over! Advance Auto Parts has 2 different Coolant Reservoir Caps for your vehicle, ready for shipping or in-store pick up. The best part is, our Lexus GS450h Coolant Reservoir Caps start from as little as $9.49.

When it comes to your Lexus GS450h, you want parts and products from only trusted brands. Here at Advance Auto Parts, we work with only top reliable Coolant Reservoir Caps brands so you can shop with complete confidence. Some of our top Coolant Reservoir Caps brands are Carquest Premium and Original Equipment. We’re sure you will get the right product to keep that GS450h running for a long time.

We even have reviews of our OEM and aftermarket Coolant Reservoir Caps products to help you buy with confidence. Hear from other customers via the 40 reviews on parts for your Lexus GS450h.

Shop online, find the best price on the right product, and have it shipped right to your door. If you prefer to shop in person for the right Coolant Reservoir Caps for your GS450h, visit one of our local Advance Auto Parts locations and you’ll be back on the road in no time!

Compare 11 Lexus Coolant Reservoir Caps

Carquest Premium – Radiator Cap: 13 PSI (Part No.10227)

Radiator Cap: 13 PSI

from

$11.99
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 – Radiator Cap: 13 PSI (Part No.10327)

Radiator Cap: 13 PSI

from

$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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Carquest Premium – Engine Coolant Reservoir Cap (Part No.10254)

Engine Coolant Reservoir Cap

from

$9.49
Manufactured to meet all OEM specifications. Designed to be easy to install and remove. Manufactured from high quality components with proper relief and vacuum valves. Quality tested to stand up to even the most demanding automotive cooling systems.

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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Dorman – Help – Engine Coolant Reservoir Cap: Twist, Plastic, 1 Pack (Part No.54231)

Engine Coolant Reservoir Cap: Twist, Plastic, 1 Pack

from

$46.99
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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Dorman – Help – Engine Coolant Reservoir Cap: Flip Top, Plastic, 1 Pack (Part No.54249)

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

from

$16.99
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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Original Equipment – Expansion Tank Cap (Part No.G10402381532OEA)

Expansion Tank Cap

from

$13.78
Expansion Tank Cap

Sankei Switches – Sankei Switches Radiator Cap (Part No.G1010324668SAK)

Sankei Switches Radiator Cap

from

$10.30
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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Dorman – Expansion Tank Cap (Part No.G1040751968DOR)

Expansion Tank Cap

from

$14.54
Dorman offers a variety of Engine Coolant Recovery Tank Caps for a range of applications. All Dorman Engine Coolant Recovery Tank Caps are constructed of high-quality plastic. They effectively protect the cooling system by providing a tight seal against the elements.

Product Features:
  • Save time, money and labor by replacing only the Cap – instead of the entire Engine Coolant Recovery Tank
  • Direct replacement for a proper fit every time
  • A necessary safety item – prevents coolant from splashing and/or leaking
  • Available in diverse styles, including screw-on and snap-on
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Carquest Premium – Reservoir Cap (Part No.T125)

Reservoir Cap

from

$31.99
Reservoir Cap

Carquest Premium – Reservoir Cap (Part No.T127)

Reservoir Cap

from

$9.79
Reservoir Cap

Carquest Premium – Reservoir Cap (Part No.T122)

Reservoir Cap

from

$3.99
Reservoir Cap

FAQs for Lexus GS450h Coolant Reservoir Caps

What are the most popular Coolant Reservoir Caps for the Lexus GS450h?

With 2 brands you can trust, our most popular Coolant Reservoir Caps for the Lexus GS450h are:
Engine Coolant Reservoir Cap
from $9.49
(4)
Engine Coolant Reservoir Cap
Coolant Reservoir Caps
Expansion Tank Cap
from $13.78
This product is not rated
Expansion Tank Cap
Coolant Reservoir Caps