Name: Bars Leaks Engine Block Sealant 1100 20 Ounce Bottle; Single
Brand: Bar's Leaks
SKU: 41HFQF2DDQPZ
Price: 42.23 CAD
Availability: InStock
Rating: 4.7 (606 reviews)

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

Buy Box Ad Container Module for Desktop

Custom HTML Module - About Klarna

Custom HTML Module - About SalesFinancing - Second update

You'll choose a plan at checkout.

#515357

I want delivery savings with Delivery Pass

#0071dc

NEW Fulfillment Tue Apr 15 2025 2:17 PM EDT

MTZ Team | Marquee 1 Ad | Item Page

MTZ Team | Marquee 2  Ad | Item Page

MTZ Team | Skyline Ad | Item Page

Other products of interest

MTZ Team | Sponsored Product Carousel - Item Page

More items to explore

MTZ Team | Sponsored Product Carousel - Item Page Broad 

NEW AddonServicesRedesign Fri Jul 18 2025 1:30 PM EDT

NEW AddToCart Mon Jul 14 2025 3:50 PM EDT

NEW AddToCart Tue Apr 15 2025 2:19 PM EDT

NEW BrandBoxDisplayAd Mon Jul 14 2025 9:14 PM EDT

NEW BrandLink Wed Apr 23 2025 12:07 AM EDT

NEW Breadcrumb Mon Apr 07 2025 8:23 PM EDT

Walmart Rewards Mastercard

NEW FinancingOptions Tue Dec 10 2024 3:32 PM EST

I want shipping & delivery savings with

NEW Fulfillment Mon Jul 14 2025 4:00 PM EDT

NEW InternationalShipping Mon May 18 2026 1:02 PM EDT

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

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

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

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

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

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

 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 LegalPriceDisclaimer Wed Apr 30 2025 12:13 AM EDT

NEW ListsAndRegistries Tue Apr 15 2025 4:50 PM EDT

NEW PaymentPlans Mon Jul 14 2025 4:15 PM EDT

NEW PaymentPlans Tue Apr 15 2025 1:31 PM EDT

NEW PriceInformation Tue Apr 15 2025 1:30 PM EDT

NEW ProductDescriptionPlaceholderATF Tue Jul 08 2025 11:41 PM EDT

NEW ProductFlags Thu Apr 10 2025 11:42 PM EDT

NEW ProductHighlightsPlaceholder Wed Jul 02 2025 12:43 AM EDT

NEW ProductImages Tue Apr 15 2025 2:13 PM EDT

NEW ProductName Tue Apr 15 2025 12:53 PM EDT

NEW ProductReturnPolicyDetails Tue Dec 10 2024 3:17 PM EST

NEW ProductReturnPolicy Mon Jul 14 2025 5:04 PM EDT

Return Policy

NEW ProductReturnPolicy Tue Apr 15 2025 2:28 PM EDT

NEW ProductStickyBuyBox Wed Jul 02 2025 12:55 AM EDT

NEW PromoDiscount Tue Apr 15 2025 6:53 PM EDT

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

Shop Confidently

NEW ShopWithConfidence Thu Jan 15 2026 2:20 PM EST

NEW SocialProofMessage Tue Apr 15 2025 7:17 PM EDT

NEW SoldAndShippedBy Mon Jul 14 2025 5:04 PM EDT

NEW SoldAndShippedBy Tue Apr 15 2025 2:23 PM EDT

New!

More savings, less stress.

HSK_Subscribetosave_E_v2

NEW SubscriptionOptionsModule Tue Apr 15 2025 6:44 PM EDT

NEW SubscriptionPriceMessage Wed Apr 23 2025 6:48 PM EDT

NEW Variants Wed Apr 23 2025 11:01 PM EDT

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

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

Syndigo

#000000

Item Carousel - Rich Relevance 1

RR carousel

Item Carousel - Rich Relevance 2

RR carousel 2

Item Carousel - Rich Relevance 3

Bars Leaks Engine Block Sealant 1100 20 Ounce Bottle; Single

<ul><li>Stops Block Leaks</li><li>Seals Cracked Cylinder Heads</li><li>Repairs Blown Head Gaskets</li><li>Made In USA</li><li>No Supplier Warranty</li></ul>

Industrial Sealant Type

Recommended Use

Brand

Colour

Assembled Product Weight

Size

Engine Block Sealant, Use To Stop Block Leaks/ Seals Cracked Cylinder Heads/ Repairs Blown Head Gaskets, 20 Ounce Bottle, Single

Manufacturer Part Number

Assembled Product Dimensions (L x W x H)

Universal Product Code (UPC check)

fulfillment

title_shipToHome_date_free_delivery

Ease Of Use

Leak Sealing

Gasket Sealing

Head

Value For Money

For Cars

Sealing Performance

Instructions Clarity

Oil Resistance

Product Quality

Can be effective, but may not work for everyone.

Made with consistently excellent ingredients.

[This review was collected as part of a promotion.] Girlfriend's Jeep had a bed head gasket leak this Stuff really works great. We put it in three months ago , and its still working fine. For the price of the sealer , compared to the work , you cannot beat it!

Just follow the directions.

Rislone

My rear main seal was leaking on my wife's Tahoe. We were unable to afford to have it repaired. I had used Bars Leak in the past and was completely satisfied with the results, so I tried the rear main seal stop leak. I was blown away at how fast it worked. I recommend Bars Leak to anyone with an oil leak on their vehicle.

Rear Main Seal leaking

[This review was collected as part of a promotion.] A friend told me about this bar's leaks for block seal head gaskets. I bought it and wanted to try and see. By my surprise it really works. I'm driving my truck around for 7 months and still going strong

Works very great

[This review was collected as part of a promotion.] I was skeptical when I purchased this product but didn’t have much to lose.  I followed the instructions and after driving the next day it appears that the head gasket leak is repaired.  Hopefully it will last a while.

It actually works

[This review was collected as part of a promotion.] Bought this a week ago and used it at first I wasn’t to sure about using it and using it was the best decision I ever made. This worked instantly and I wasn’t mixing coolant and oil anymore. My car doesn’t overheat either

Amazing product

[This review was collected as part of a promotion.] My 92 Honda Civic was eating coolant. The civic was sucking coolant after turning the car off. This left coolant on top of one or more pistons.. this caused hard starting and constant replenishing of coolant. I followed the directions and this product fixed the problem immediately.

It worked!

I didn't know about this product, google suggested it and read a lot of good reviews. Bought it and just put it in my truck, will see what happens in couple of days as it says.

Good price

[This review was collected as part of a promotion.] I got this to stop the oil leak in my car and  I didn't think it would work but here we are 3 weeks later and not one drop of oil has leaked out !! I'm so happy about that!! Thank you

Oil seal

Might be too early to say, but so far after almost a week, no water hasn't needed to be added to the reservoir of the Escape.   Anyone with a 13-19 Ford Escape, 1.5-1.6 L engines.. they are defective.  They tend to leak coolant into the combination chamber.

walmart.com

haven't had a chance to use the product yet

It did not seal my small toyota prius head gasket and created a burning smell whenever the engine is running.

It does not work for a head gasket.

Bar's Leaks Engine Block Sealant 1100 in a 20-ounce bottle, ideal for stopping block leaks, sealing cracked cylinder heads, and repairing blown head gaskets. The bottle has a black cap and a multicolour label with prominent branding and instructions. Commonly used for head gasket repair and other automotive sealing needs.

Bars Leaks Engine Block Sealant 1100 20 Ounce Bottle; Single

Shop Confidently

More seller options (1)

Your data, your choice