Best Head Gasket Sealer For Subaru: image
Editor's Pick

Gasket sealer and belt dressing from Gasgacinch, which is formulated with high-shear strength, may be used in hot, cold, wet, acidic, and abrasive environments. The sealant has been tested to ensure that it doesn’t cause any damage to the engine or transmission. It can also be used as a replacement for worn-out parts. Notably, this comes after several leaks occurred due to improper installation.

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A vehicle’s engine. It contains no solid or particulate matter that can harm a vehicle’s engine. The product has been tested and found to be safe for use in all vehicles, including those with diesel engines. It is also suitable for oil-burning engines. Not only does it reduce fuel consumption, but it also prevents the formation of harmful gases.

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Bar’s Leaks Liquid Aluminum Radiator and Heater Core Stop Leak Seals seals radiator leaks. The seals freeze the plug leaks, preventing them from spreading further. It also reduces water temperature by reducing the amount of carbon monoxide in the water. Notably, this product is sold under the brand name ‘Bar’.

Best Head Gasket Sealer For Subaru

Top 7 Best Head Gasket Sealer For Subaru

1

Bar’s Leaks 1186 Liquid Aluminum Stop Leak – 16.9 oz , Gray

2,051 ratings | 25 offers | 2,051 Reviews
Price: $4.29$33.44
Why we chose it
  • Repairs gasket leaks
  • Seals freeze plug leaks
  • Special Shipping Information: This item cannot be returned and has additional shipping restrictions
  • Bar’s Leaks Liquid Aluminum Stop Leak seals radiator leaks. Seals freeze plug leaks. Repairs gasket leaks and heater core leaks. Lowers water temperature.
  • Seals radiator leaks
Bar's Leaks 1186 Liquid Aluminum Stop Leak - 16.9 oz , Gray: image
86%
customers recommend this product
4.3/ 5
Easy to use4.6
Value for money4.3
2

Permatex 80063 High Tack Gasket Sealant, 16 oz.

1,400 ratings | 16 offers | 1,400 Reviews
Price: $17.01$34.48
Why we chose it
  • Effective at temperatures of -65F to 500F
  • Resists gasoline, oil, antifreeze, axle lube, kerosene, propane and butane
  • Fast-drying all-purpose sealant
  • Dries to a highly tacky, non-brittle film
  • Suggested Applications: Valve covers, fuel pumps, carburetors, manifold gaskets
Permatex 80063 High Tack Gasket Sealant, 16 oz.: image
94%
customers recommend this product
4.7/ 5
Adhesion4.5
Value for money4.5
Top Pick
3

Gasgacinch 440-B Gasket Sealer and Belt Dressing, 8 oz

550 ratings | 15 offers | 550 Reviews
Price: $13.24$28.95
Why we chose it
  • Gasgacinch Gasket Sealer and Belt Dressing provides unmatched gasket sealing properties, preventing leaks, reducing expensive repairs, and creates a superior grip as a belt dressing
  • When cured, Gasgacinch is flexible, has high-peel strength, high-shear strength, fatigue resistant, vibration dampening, high heat resistance, gasoline resistant, and oil resistant
  • Flash point: -7.0 degrees celsius
  • Fit type: Vehicle Specific
  • Preferred in nearly all mechanical industries including: auto repair, diesel and truck repair, high-performance engine builders, motorcycle repair and many more
  • Gasgacinch Gasket Sealer remains flexible and makes it easier to assemble and disassemble an engine or transmission, often any residue may be removed simply by rubbing it away
  • Adheres to carbon steel, alloy steel, aluminum, titanium, lead, magnesium, synthetic and natural rubber, copper and cork, and may be used in hot, cold, wet, dry, acid, basic, and abrasive environments
Gasgacinch 440-B Gasket Sealer and Belt Dressing, 8 oz: image
96%
customers recommend this product
4.8/ 5
Adhesion4.7
Easy to remove4.3
4

BlueDevil Headgasket Sealer

7 ratings | 1 offers | 7 Reviews
Price starts from: $59.99
Why we chose it
  • Contains no solid or particulate matter that can harm a vehicles engine
  • Safe and easy to use
  • Permanent Repair
  • Alternative solution for costly and time consuming repairs
BlueDevil Headgasket Sealer: image
84%
customers recommend this product
4.2/ 5
5

K-Seal ST3501 Pour and Go Permanent Head Gasket and Block Repair

707 ratings | 6 offers | 707 Reviews
Price: $20.86$43.04
Why we chose it
  • If product did not seal head gasket leak, the system might be Over-pressurized, which causes back pressure and doesn’t allow the product to reach the problem area, on this page below under Technical Specification is a PDF Guide with instructions to follow to complete the repair successfully
  • Just Pour & Go No Need for Expensive Head Gasket Repairs – The Safe and Easy Way to Fix a Coolant Leak
  • Fixes blown head gaskets, cracked heads and blocks
  • Scientifically Tested – K-Seal is the only product to have been successfully tested by the equipment at Brighton University and classes as meeting the demands of ASTM D3147
  • A permanent repair, guaranteed for the lifetime of the engine
K-Seal ST3501 Pour and Go Permanent Head Gasket and Block Repair: image
80%
customers recommend this product
4/ 5
Easy to use4.5
Mileage3.8
Value for money3.7
6

Head Gasket Sealer for 8 Cylinder Engines – Steel Seal

194 ratings | 1 offers | 194 Reviews
Price starts from: $1
Why we chose it
  • Backed with a 100% Money-Back Guarantee
  • Used for all 8 cylinder engines (2 bottles)
  • Permanently seals head gasket leaks
  • Do-It-Yourself pour in head gasket fix
  • Award winning, triple-patented formula
Head Gasket Sealer for 8 Cylinder Engines - Steel Seal: image
76%
customers recommend this product
3.8/ 5
Easy to use4
Mileage3.2
Value for money3
7

Bar’s Leaks 1100 Head Gasket Repair – 20 oz.

362 ratings | 16 offers | 362 Reviews
Price: $7.35$26.47
Why we chose it
  • Head Gasket Sealant is NOT COMPATIBLE with antifreeze and must only be added to the cooling system after ALL ANTIFREEZE has been flushed and removed.
  • Seals cracked cylinder heads and blocks
  • Repairs blown head gaskets
  • Stops block leaks
  • Included components: Unit, Instruction Guide
  • Dual Action 2 Part Formula LIQUID CERAMIC: Liquid penetrates large and small leaks to form a seal actually harder than the original head gasket REINFORCED FIBERS: Fiber additives lock together with liquid to increase strength and promote a permanent seal
Bar's Leaks 1100 Head Gasket Repair - 20 oz.: image
82%
customers recommend this product
4.1/ 5
Value for money4.3
Mileage4.3
Easy to use4
Top Pick
Gasgacinch 440-B Gasket Sealer and Belt Dressing, 8 oz
Gasgacinch Gasket Sealer and Belt Dressing provides unmatched gasket sealing properties, preventing leaks, reducing expensive repairs, and creates a superior grip as a belt dressing. Gasgacinch Gasket Sealer remains flexible and makes it easier to assemble and disassemble the engine or transmission. Often any residue of Gasgacinch may be removed simply by rubbing it away. Many other sealers require solvents or destructive scraping to clean off a head or flange. Gasgacinch adheres to carbon steel, alloy steel, aluminum, titanium, lead, magnesium, synthetic and natural rubber, copper and cork. Gasgacinch Gasket Sealer may be used in hot, cold, wet, dry, acid, basic, and abrasive environments. Gasgacinch, when cured, is flexible, has high-peel strength, high-shear strength, fatigue resistant, vibration dampening, high heat resistance, gasoline resistant, and oil resistant. Gasgacinch performs exceptional compared to other sealants that are pasty and thick. Competitor's thick material makes it difficult to seep into the small imperfections of the metal surfaces, creating air pockets where leaks will develop. In contrast, Gasgacinch is very fluid, which allows it to flow into the small imperfections of metal surfaces. GASGACINCH includes heat-resistant formulated compounds and contains NO HEAT RETAINING metal powders. Because of its superior composition, GASGACINCH has the versatility for a broad range of applications not found in other sealants. GASGACINCH's proven performance is preferred in nearly all mechanical industries including: auto repair, diesel and truck repair, high-performance engine builders, motorcycle repair and many more.
Ranking the Brands
Bar’s Leaks: 28.57%
Permatex: 14.29%
Gasgacinch: 14.29%
Blue Devil: 14.29%
KALIMEX LTD: 14.29%
STEEL SEAL: 14.29%

Comparison Table

Сomparison: Bar's Leaks 1186 Liquid Aluminum Stop Leak - 16.9 oz , Gray: imageСomparison: Permatex 80063 High Tack Gasket Sealant, 16 oz.: imageСomparison: Gasgacinch 440-B Gasket Sealer and Belt Dressing, 8 oz: imageСomparison: BlueDevil Headgasket Sealer: imageСomparison: K-Seal ST3501 Pour and Go Permanent Head Gasket and Block Repair: imageСomparison: Head Gasket Sealer for 8 Cylinder Engines - Steel Seal: imageСomparison: Bar's Leaks 1100 Head Gasket Repair - 20 oz.: image
Bar’s Leaks 1186 Liquid Aluminum Stop Leak – 16.9 oz , GrayPermatex 80063 High Tack Gasket Sealant, 16 oz.Gasgacinch 440-B Gasket Sealer and Belt Dressing, 8 ozBlueDevil Headgasket SealerK-Seal ST3501 Pour and Go Permanent Head Gasket and Block RepairHead Gasket Sealer for 8 Cylinder Engines – Steel SealBar’s Leaks 1100 Head Gasket Repair – 20 oz.
ManufacturerBar’s LeaksPermatexGasgacinchBlueDevil ProductsSolv-TecASteel SealBar’s Leaks
BrandBar’s LeaksPermatexGasgacinchBlue DevilKALIMEX LTDSTEEL SEAL
Item Weight1.2 pounds1 pounds8 ounces1.1 pounds1 pounds2.64 pounds1.41 pounds
Product Dimensions2.6 x 2.6 x 7.4 inches3.38 x 4.5 x 3.38 inches3.7 x 2.7 x 2.6 inches8.8 x 3.5 x 3.5 inches2.5 x 2.5 x 8 inches4 x 4 x 8 inches1.8 x 3.4 x 8.3 inches
Is Discontinued By ManufacturerNoYesNoNoNo
SizePack of 1Pack of 18 Ounces1 Pack

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