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Engine Leak Sealer

10 Best Engine Leak Sealer 2025 in the United States

Name: ATP Automotive AT-205 Re-Seal Stops Leaks, 8 Ounce Bottle
Brand: ATP Automotive
Price: 20.13 USD
Availability: InStock

From leading brands and best sellers available on the web.

Winner

ATP Automotive

ATP Automotive AT-205 Re-Seal Stops Leaks, 8 Ounce Bottle

9.7

score

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Bar's Leaks

Bar's Leaks OS-1 Seal Engine Oil Burning/Leak Repair - 16.9 oz.

9.4

score

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AT-205 Seal Leak Stopper 8 Ounce - 2 Pack

9.2

score

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ATP

AT-205 ATP Re-Seal Leak Stopper 8 Ounce - 4 Pack

8.9

score

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ATP Automotive

ATP Automotive AT-205 Re-Seal Stops Leaks, 8 Ounce Bottle (2 Pack)

8.6

score

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BlueDevil Products

BlueDevil Products 49499 Oil Stop Leak - 8 Ounce

8.3

score

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Lucas Oil

Lucas Oil Products LUC10278 Engine Oil Stop Leak, 1 Quart, 1 Pack

8.0

score

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Bar's Leaks

Bar's Leaks Rear Main Seal Repair, 16.9 oz

7.8

score

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BlueDevil Products

BlueDevil Products 00234 Rear Main Sealer - 8 Ounce

7.5

score

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#10

Permatex

Permatex 30302 Engine Oil - Stop Leak, 12 fl oz, Effectively Stops and Prevents Oil Leaks and Burning Without Needing to Dismantle

7.2

score

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10 Best Engine Leak Sealer 2025 in the United States

ATP Automotive AT-205 Re-Seal Stops Leaks, 8 Ounce Bottle

Bar's Leaks OS-1 Seal Engine Oil Burning/Leak Repair - 16.9 oz.

AT-205 Seal Leak Stopper 8 Ounce - 2 Pack

AT-205 ATP Re-Seal Leak Stopper 8 Ounce - 4 Pack

ATP Automotive AT-205 Re-Seal Stops Leaks, 8 Ounce Bottle (2 Pack)

BlueDevil Products 49499 Oil Stop Leak - 8 Ounce

Lucas Oil Products LUC10278 Engine Oil Stop Leak, 1 Quart, 1 Pack

Bar's Leaks Rear Main Seal Repair, 16.9 oz

BlueDevil Products 00234 Rear Main Sealer - 8 Ounce

Permatex 30302 Engine Oil - Stop Leak, 12 fl oz, Effectively Stops and Prevents Oil Leaks and Burning Without Needing to Dismantle

FAQ

How effective are engine leak sealers?

Are engine leak sealers safe to use in all types of engines?

How do you apply an engine leak sealer?

Can using an engine leak sealer cause any harm to the engine?

How long does an engine leak sealer last?

10 Best Engine Leak Sealer 2025 in the United States

ATP Automotive AT-205 Re-Seal Stops Leaks, 8 Ounce Bottle

Bar's Leaks OS-1 Seal Engine Oil Burning/Leak Repair - 16.9 oz.

AT-205 Seal Leak Stopper 8 Ounce - 2 Pack

AT-205 ATP Re-Seal Leak Stopper 8 Ounce - 4 Pack

ATP Automotive AT-205 Re-Seal Stops Leaks, 8 Ounce Bottle (2 Pack)

Bar's Leaks High Mileage Engine Repair-It, 16.9 oz

Lucas Oil 10279 Engine Oil Stop Leak - 1 Gallon

Bar's Leaks 1109 Block Seal Liquid Copper Intake and Radiator Stop Leak - 18 oz.

XADO ATOMEX Oil Additive Stop Leak Engine - Restore Seal and Gaskets, Treatment for Car Engine High Mileage or Rear Main Seal, Best Stopper Leaks Reseal (Bottle, 250 ml)

Bar's Leaks 1334-5PK One Seal Stop Leak - 11 oz, (Pack of 5)

BlueDevil Products 49499 Oil Stop Leak - 8 Ounce

Lucas Oil Products LUC10278 Engine Oil Stop Leak, 1 Quart, 1 Pack

Bar's Leaks Rear Main Seal Repair, 16.9 oz

BlueDevil Products 00234 Rear Main Sealer - 8 Ounce

Permatex 30302 Engine Oil - Stop Leak, 12 fl oz, Effectively Stops and Prevents Oil Leaks and Burning Without Needing to Dismantle

Marine Teak Sealer

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Auto Engine Sealers

FAQ

How effective are engine leak sealers?

Are engine leak sealers safe to use in all types of engines?

How do you apply an engine leak sealer?

Can using an engine leak sealer cause any harm to the engine?

How long does an engine leak sealer last?