Lexus RC300 Coolant Reservoir Caps

Your Lexus RC300 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 RC300 Coolant Reservoir Caps start from as little as $9.49.

When it comes to your Lexus RC300, 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 RC300 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 32 reviews on parts for your Lexus RC300.

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 RC300, visit one of our local Advance Auto Parts locations and you’ll be back on the road in no time!

Compare 10 Lexus Coolant Reservoir Caps

Carquest Premium – Radiator Cap: 16 PSI (Part No.10333)

Radiator Cap: 16 PSI

from

$21.99
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:
  • 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 – 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
See More

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
See More

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
See More

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

Expansion Tank Cap

from

$15.27
Expansion Tank Cap

Carquest Premium – Reservoir Cap (Part No.T125)

Reservoir Cap

from

$31.99
Reservoir Cap

Futaba – Water Outlet Cap (Part No.G304465226FEW)

Water Outlet Cap

from

$15.55
Water Outlet 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 RC300 Coolant Reservoir Caps

What are the most popular Coolant Reservoir Caps for the Lexus RC300?

With 2 brands you can trust, our most popular Coolant Reservoir Caps for the Lexus RC300 are:
Engine Coolant Reservoir Cap
from $9.49
(4)
Engine Coolant Reservoir Cap
Coolant Reservoir Caps
Expansion Tank Cap
from $15.27
This product is not rated
Expansion Tank Cap
Coolant Reservoir Caps