Best Heater Core Stop Leak - April 2024

Bar's Leaks 1186-6PK Liquid Aluminum Stop Leak - 16.9 oz, (Pack of 6)

Liquid Aluminum Cooling System Radiator and Heater Core Stop Leak safely and instantly seals radiator, heater core, gasket and freeze plug leaks. Contains Xtreme Cool which stops overheating and reduces water temperature. One of the few products to meet ASTM D6107 requirements for Stop Leak Additives used in Engine Coolants. Works in water or all antifreeze coolants.

• ASIN: B00BYS6YLQ
• ASIN: B00BYS6YLQ
• Brand: Bar's Leaks
• Size: Pack of 6
• Manufacturer: Bar's Leaks

UAC HT 399242C HVAC Heater Core

• ASIN: B003R460JQ
• UPC: 711307365524
• ASIN: B003R460JQ
• Brand: UAC
• Manufacturer: UAC

Universal Air Conditioner HT 399184C HVAC Heater Core

• ASIN: B01BPET0BE
• UPC: 711307306152
• ASIN: B01BPET0BE
• Brand: UAC
• Manufacturer: UAC

Universal Air Conditioner HT 399331C HVAC Heater Core

• ASIN: B01BPET1O0
• UPC: 711307288281
• ASIN: B01BPET1O0
• Brand: UAC
• Manufacturer: UAC

K-Seal ST5501 Multi Purpose One Step Permanent Coolant Leak Repair

K-Seal 8 fluid ounce bottle is effective to 20 quarts cooling capacity. Just shake, pour and go. It repairs leaks and cracks in radiator, head gasket, heater core, freeze plugs, water pump casing, cylinder heads and engine blocks.

• ASIN: B001QT9KO6
• UPC: 812646010004
• ASIN: B001QT9KO6
• Brand: K-Seal
• Manufacturer: K-Seal

Prestone AS145 Radiator Sealer Stop Leak - 11 oz.

Prestone Radiator Stop Leak features a patented formula that quickly stops leaks in radiators, water pumps, and heater cores while also protecting against pitting and corrosion. Prestone Radiator Stop Leak takes sealing performance to a higher level by both stopping the leak as well as the corrosive condition that causes leaks in the first place. Its unique combination of natural and synthetic components provides the ability to seal leaks up to 0.020-inches x 0.5-inches. What makes this possible is the size, strength, and durability afforded by fibrous particles, the same materials in bulletpr... [Read More]

• ASIN: B00B99U1V4
• UPC: 797496876546
• ASIN: B00B99U1V4
• Brand: Prestone
• Size: 11 Ounce
• Manufacturer: Prestone

Bar's Leaks 1194 Radiator Stop Leak Concentrate - 6 oz.

Ever wish you had double the time or money? Or both? We know we do. That’s why we created the Bar’s Leaks Radiator Stop Leak 2X Concentrate. It has double the power of most other stop leak products and saves you double the time and money that it would take to get your car to the repair shop. When you need to fix a radiator leak, you don’t want to spend the time it will take to visit a mechanic. And then there’s the cost of getting a radiator stop leak solution. But getting the fix radiator leak solution you need shouldn’t be time consuming and it shouldn’t be expensive. That’s wh... [Read More]

• ASIN: B006GUMITE
• UPC: 046087011942
• ASIN: B006GUMITE
• Brand: Bar's Leaks
• Size: 11 Ounce
• Manufacturer: Bar's Leaks

Genuine GM (12378255) Fluid 3634621 Cooling System Seal Tablet - 4 Grams, (Pack of 5)

Original organic formula designed for use in radiator systems to seal leaks and prevent leaks due to casting porosity in engine components. Seals minor leaks and porosity in cooling systems. DEX-COOL compatible. Non-toxic.

• ASIN: B000QIH3C4
• ASIN: B000QIH3C4
• Brand: Genuine GM
• Size: Pack of 5
• Manufacturer: GM

Bar's Leaks 1186 Pack of 1 Automotive Accessories

Bar's Leaks Liquid Aluminum Stop Leak seals radiator leaks. Seals freeze plug leaks. Repairs gasket leaks and heater core leaks. Lowers water temperature.

• ASIN: B002696FA2
• UPC: 046087011867
• ASIN: B002696FA2
• Brand: Bar's Leaks
• Size: Pack of 1
• Manufacturer: Bar's Leaks

Bar's Leak HG-1 HEAD SEAL Blown Head Gasket Repair

Bar's Leaks Head Gasket and Cooling Sealant repairs blown head and intake gasket leaks. Seals cracked cylinder heads and blocks. Stops heater core and radiator leaks. Fixes leaking freeze and core plugs.

• ASIN: B003RGIWO0
• UPC: 046087011362
• ASIN: B003RGIWO0
• Brand: Bar's Leaks
• Size: Pack of 1
• Manufacturer: Bar's Leaks

Bar's Leaks Liquid Aluminum Radiator & Heater Core Stop Leak

Bar's Leaks Liquid Aluminum Radiator Stop Leak is scientifically formulated to permanently seal coolant leaks that are the cause of most overheating problems. Liquid Aluminum is part of the next generation stop leak line which

• UPC: 22087044
• Model: 1186
• Color: Silver
• Size: Car care/cleaning
• Rating: 4.111

Bar's Leaks Radiator Stop Leak - 6 oz.

The Bar's Leaks Radiator Stop Leak formula is designed to help stop holes in your automotive part with ease allowing you to resume your commute. It can be used with a wide range of antifreeze

• UPC: 38090329
• Model: 1194
• Color: Silver
• Size: Car care/cleaning
• Rating: 4.769

Bar's Leaks Block Seal Liquid Copper

This one step formula permanently repairs larger leaks in radiators, intake manifolds and gaskets, heater cores, blocks, heads and freeze

• UPC: 23554602
• Model: 1109
• Color: Multicolor
• Size: 18 oz
• Rating: 4.125

Stop & Seal Radiator & Heater Core Leak Repair

Stop Leak for Radiator and Heater Core

• UPC: 493520452

(12 Pack) Bar's Leaks Cooling System Stop Leak

BARS LEAKS STPS SLS CLNT LKS ASRTD RDTR SLR

• UPC: 798603399
• Rating: 4.296

AlumaSeal (ASBPI12) Radiator Stop Leak Powder Blister Card, .20 g

STOPLEAK RADIATOR SEALER

• UPC: 26957616
• Model: ASBPI12
• Color: Multicolor
• Size: Car care/cleaning
• Rating: 4.429

(6 Pack) Bar's Leaks One Seal Stop Leak

Ever wish there was one product that could quickly and easily fix that leak coming from your car? Well today is your lucky day because we created the Bar's Leaks One Seal Stop Leak to

• UPC: 832959473
• Rating: 4.75

Bar's Leaks Engine Oil Stop Leak Concentrate, 11 fl oz

Stop and seal motor oil leaks with Bar's Leaks Engine Oil Stop Leak

• UPC: 19276117
• Model: 1010
• Color: Multicolor
• Rating: 3.769

Best Choice Products 1500W Home Portable Electric Energy-Efficient Radiator Heater w/ Adjustable Thermostat, Safety Shut-Off, 3 Heat Settings - Black

Heat your room quickly and efficiently with this 3-setting portable heater! Simple to operate and built to last, it uses the sealed oil inside to instantly heat any room. The machine will also run silently

• UPC: 764557213
• Color: Black
• Rating: 4.222

Bar's Leaks Concentrated Rear Main Seal Repair, 16.9-oz.

For other automotive sealant repair supplies, see our automotive grommets, gaskets, and fasteners and bearings and oil seals. Bar's Leaks Rear Main Seal Repair include characteristics like: Type: Concentrated, Color: BROWN.FeaturesColor: BROWNType: ConcentratedFor Use With:

• UPC: 52628122
• Model: 1040
• Color: Brown
• Size: 16.9 oz
• Rating: 4.353