Walmart US Ecommerce Website

GENERAL MERCHANDISE

PHARMACY

GROCERIES

VUDU

SPARK

PHOTO

ADVERTISING

SAVINGS CATCHER

GIFTCARDS

INHOME

AFFILIATE

ONEAPP

LOTUS

HELP

SMART_REORDER

GROCERY

CONV_COMMERCE

Try it free

Glass WEB: Walmart + "Non Member" PIP Banner Wk 19 2025

NEW ProductName Tue Apr 15 2025 12:53 PM EDT

NEW ProductHighlightsPlaceholder Wed Jul 02 2025 12:43 AM EDT

NEW AddToCart Mon Jul 14 2025 3:50 PM EDT

 Price Match Policy

Prices, terms, and availability may vary online, in stores, and in–app. If the advertised price is not shown here, inventory at the advertised price may now be sold out. Please see the other offers, if available, while quantities last. Some items may be available from Marketplace Sellers, who set their own prices, and are not eligible for price match. Items sold in store by Walmart may be eligible for a price match to online items shipped and sold by Walmart. For variable weight items, price shown is an estimated price only – you will be charged for the actual weight of the item. See our

NEW LegalPriceDisclaimer Mon Jul 14 2025 4:11 PM EDT

NEW PriceInformation Tue Apr 15 2025 1:30 PM EDT

NEW Breadcrumb Mon Apr 07 2025 8:23 PM EDT

NEW ProductReturnPolicy Mon Jul 14 2025 5:04 PM EDT

NEW Variants Wed Apr 23 2025 11:01 PM EDT

[Sticky] PriceInformation Mon Jul 14 2025 4:03 PM EDT

Other products of interest

MTZ Team | Sponsored Product Carousel - Item Page

NEW PaymentPlans Tue Apr 15 2025 1:31 PM EDT

NEW PromoDiscount Tue Apr 15 2025 6:53 PM EDT

[Sticky] BuyBoxAd Mon Aug 11 2025 3:59 AM EDT

New Item Related Shelves Module, Thursday, June 15, 2023, 6:08:51:10 am

NEW ListsAndRegistries Tue Apr 15 2025 4:50 PM EDT

I want delivery savings + more with

Try 30 days of free delivery + more! Choose your plan at checkout.

#2e2f32

NEW Fulfillment Tue Apr 15 2025 2:17 PM EDT

New SellersSecondaryBuyBox Module, Tuesday, September 05, 2023, 4:02:21:76 pm

NEW ProductFlags Thu Apr 10 2025 11:42 PM EDT

MTZ Team | Marquee 1 Ad | Item Page

NEW AddonServicesRedesign Fri Jul 18 2025 1:30 PM EDT

Return Policy

NEW ProductReturnPolicy Tue Apr 15 2025 2:28 PM EDT

NEW PaymentPlans Mon Jul 14 2025 4:15 PM EDT

New Item Page - Product Ingredients Placeholder Module, Friday, February 10, 2023, 10:34:23:79 am

Walmart Rewards Mastercard

NEW FinancingOptions Tue Dec 10 2024 3:32 PM EST

Shop Confidently

NEW ShopWithConfidence Thu Jan 15 2026 2:20 PM EST

NEW SoldAndShippedBy Tue Apr 15 2025 2:23 PM EDT

NEW BrandLink Wed Apr 23 2025 12:07 AM EDT

New!

More savings, less stress.

HSK_Subscribetosave_E_v2

NEW SubscriptionOptionsModule Tue Apr 15 2025 6:44 PM EDT

MTZ Team | Skyline Ad | Item Page

New Item Page - Reviews Placeholder Module, Wednesday, March 22, 2023, 10:04:29:34 am

NEW InternationalShipping Mon May 18 2026 1:02 PM EDT

Buy Box Ad Container Module for Desktop

Custom HTML Module - About SalesFinancing - Second update

New Item Page - Nutrition Value Placeholder Module, Wednesday, February 08, 2023, 5:11:53:90 pm

NEW AddToCart Tue Apr 15 2025 2:19 PM EDT

NEW ProductImages Tue Apr 15 2025 2:13 PM EDT

More items to explore

MTZ Team | Sponsored Product Carousel - Item Page Broad 

NEW SubscriptionPriceMessage Wed Apr 23 2025 6:48 PM EDT

NEW ProductStickyBuyBox Wed Jul 02 2025 12:55 AM EDT

Syndigo

NEW ProductDescriptionPlaceholderATF Tue Jul 08 2025 11:41 PM EDT

MTZ Team | Marquee 2  Ad | Item Page

NEW SoldAndShippedBy Mon Jul 14 2025 5:04 PM EDT

NEW SocialProofMessage Tue Apr 15 2025 7:17 PM EDT

NEW BrandBoxDisplayAd Mon Jul 14 2025 9:14 PM EDT

Custom HTML Module - About Klarna

New Item Page - Product Specifications Placeholder Module, Wednesday, February 08, 2023, 5:15:29:61 pm

NEW LegalPriceDisclaimer Wed Apr 30 2025 12:13 AM EDT

NEW ProductReturnPolicyDetails Tue Dec 10 2024 3:17 PM EST

New Item Page - Product Description Placeholder Module, Wednesday, February 08, 2023, 5:14:04:38 pm

NEW Fulfillment Mon Jul 14 2025 4:00 PM EDT

True

dWeb: L1/L2- Comparison Chart- WK 07, 2026

RR carousel 2

Item Carousel - Rich Relevance 3

RR carousel

Item Carousel - Rich Relevance 2

#000000

Item Carousel - Rich Relevance 1

Supertech radiator stop leak

<br><ul><li>Made in Canada</li><li>Supertech Radiator Stop Leak</li><li>Radiator Stop Leak</li><li>Protects against pitting and corrosion</li><li>Supertech Radiator Stop Leak quickly stops leaks in radiators, water pumps and heater cores</li></ul>

Brand

Vehicle Fitment Type

Assembled Product Weight

Count Per Pack

Has Written Warranty

Universal Product Code (UPC check)

Walmart Item #

fulfillment

title_shipToHome_date_delivery

Do not shop at walmart, they do not allow return even though unopened. There is no notification of this policy. I will be shopping at other stores that respect their customers.

Do not Buy at walmart

Used it for a small rad leak that appeared after a rad flush. It didn't fix the leak, and now my heater is clogged and I have no heat.

Don't use

Supertech Radiator Stop Leak 500 mL red plastic bottle with black cap, front label showing bilingual instructions, designed to quickly stop leaks in radiators, heater cores, and water pumps, protects against corrosion, compatible with all radiator coolants, and lubricates pump seals for automotive coolant system maintenance.

Supertech radiator stop leak

About this item

At a glance

Shop Confidently

How you’ll get this item:

Your data, your choice