ACDelco RC98 radiator surge tank cap close-up showing seal and pressure control
ACDelco RC98 cap close-up highlights GM OE durability and fit
ACDelco RC98 radiator surge tank cap close-up showing seal and pressure control
ACDelco RC98 cap close-up highlights GM OE durability and fit

ACDelco RC98 15 PSI Radiator Surge Tank Cap | GM Original Equipment

Overview Introducing the ACDelco RC98 15 PSI Radiator Surge Tank Cap, a GM Original Equipment part designed...
Vendor: ACDelco
Availability: In stock
£34.63
£34.63
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ACDelco RC98 radiator surge tank cap close-up showing seal and pressure control

ACDelco RC98 15 PSI Radiator Surge Tank Cap | GM Original Equipment

£34.63
ACDelco RC98 radiator surge tank cap close-up showing seal and pressure control
ACDelco RC98 cap close-up highlights GM OE durability and fit

ACDelco RC98 15 PSI Radiator Surge Tank Cap | GM Original Equipment

£34.63
Description
Description
x

Overview

Introducing the ACDelco RC98 15 PSI Radiator Surge Tank Cap, a GM Original Equipment part designed to preserve cooling system integrity as your engine warms and cools. This cap sits atop the surge tank and helps manage the pressure inside the cooling circuit, supporting consistent operation during daily driving and seasonal shifts.

Smart fit for GM vehicles

Engineered to meet the needs of many GM models, the RC98 is positioned as a GM-recommended replacement for your vehicle’s original factory cap. With GM OE-grade construction, it’s built to endure the temperature swings and road conditions drivers encounter.

What it does for your cooling system

  • Seals the surge tank and maintains proper cooling system pressure
  • Helps raise the coolant's boiling point, supporting steady heat management
  • Offers broad GM model coverage for easier sourcing

Real-life use and benefits

During hot summer commutes or long highway drives, the cap’s seal and pressure control can reduce coolant loss and help the system respond to rapid temperature changes. The 15 PSI rating reflects a practical balance between protective pressure and responsive cooling behavior.

GM OE quality you can rely on

As a GM Original Equipment part, RC98 delivers the reliability and durability expected from GM OE components. It replaces worn or damaged factory caps and brings you back to a familiar, designed-for-your-vehicle fit.

Key benefits at a glance

  • Precise 15 PSI rating supports consistent cooling system pressure
  • Reliable sealing minimizes coolant loss during pressurization
  • Broad compatibility with many GM models
  • GM OE quality and design for dependable performance

FAQ

Q: Is this cap compatible with most GM vehicles?

A: Yes. The RC98 is designed as a broad GM OE replacement and fits many GM models, making it a convenient choice for compatible GM vehicles.

Q: What cooling system benefits can RC98 provide?

A: It helps seal the surge tank and maintain coolant pressure, supporting stable temperatures and efficient cooling.

Shipping & Return
Shipping & Return
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Returns Policy

You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.

Shipping

We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

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