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AdditivesAdvance Auto Parts ShopAftermarket & Performance Wheels and RimsAntifreeze & Car CoolantsArchoilATV / UTV Oils & FluidsATV FluidsAuto Paint ChemicalsAuto Repair ToolsAuto Safety AccessoriesAutomotive Bulk BuysAutomotive Cleaners & DegreasersAutomotive FluidsAutomotive GreasesAutomotive OilsBoat CleanersBody Fillers and PuttiesBulk Automotive FluidsCarquest Brake PartsDirt Bike Parts & AccessoriesEngine & Powertrain Replacement PartsEnterprise B2B & Bulk Motor OilExterior Car DetailingFarm and Agriculture Bulk BuysGasket SealersGaskets & Sealers on Advance Auto Parts ShopInterior Car DetailingLIQUI MOLYMaintenance EquipmentMotor OilMotor Oil, Fluids & Additives on Advance Auto Parts ShopMotorcycle Oils & FluidsOil Change ToolsReplacement Auto PartsRoad Trip Oil, Fluids & FiltersSuperTechSuzuki PartsTractor FluidsTruck and Fleet Bulk BuysUTV FluidsUTV Parts & Accessories
Engine Leak(248)
Uses item details. Price when purchased online
AtomEx Stop-Leak AEX123 Engine Oil Additive Automotive Additive 8 Ounce $19.00

Sponsored
$1900
current price $19.00AtomEx Stop-Leak AEX123 Engine Oil Additive Automotive Additive 8 Ounce
44 out of 5 Stars. 4 reviews
Hot Shot's Secret Stiction Eliminator Oil Treatment for Gas & Diesel Engines 16 oz. From $17.20

Sponsored
From$1720
Hot Shot's Secret Stiction Eliminator Oil Treatment for Gas & Diesel Engines 16 oz.
7834.9 out of 5 Stars. 783 reviews
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Hot Shot's Secret FR3 Oil Treatment for Gas & Diesel Engines 16 oz From $18.53

Sponsored
From$1853
Hot Shot's Secret FR3 Oil Treatment for Gas & Diesel Engines 16 oz
4924.9 out of 5 Stars. 492 reviews
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Xado Atomic Metal Conditioner Maximum with 1 Stage Revitalizant Treatment and Additive for Gasoline LPG and Diesel Engines $49.49

Sponsored
$4949
current price $49.49Xado Atomic Metal Conditioner Maximum with 1 Stage Revitalizant Treatment and Additive for Gasoline LPG and Diesel Engines
74.3 out of 5 Stars. 7 reviews
STP High Mileage Oil Treatment and Stop Leak Additive, 15 fl oz From $6.98

6 options
Available in additional 6 optionsFrom$698
STP High Mileage Oil Treatment and Stop Leak Additive, 15 fl oz
4894.6 out of 5 Stars. 489 reviews
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Bar's Leaks 1334 One Seal Stop Leak Automotive Additive, 11 oz From $5.94

6 options
Available in additional 6 optionsFrom$594
Bar's Leaks 1334 One Seal Stop Leak Automotive Additive, 11 oz
6534.4 out of 5 Stars. 653 reviews
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Bar's Leaks 1000 High Mileage Engine Repair, Automotive Additive, 16.9 oz From $12.98

5 options
Available in additional 5 optionsFrom$1298
Bar's Leaks 1000 High Mileage Engine Repair, Automotive Additive, 16.9 oz
3074.6 out of 5 Stars. 307 reviews
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Lucas Oil 10278 Engine Oil Stop Leak - 1 Quart Automotive Additive From $12.32

4 options
Available in additional 4 optionsFrom$1232
Lucas Oil 10278 Engine Oil Stop Leak - 1 Quart Automotive Additive
4114.5 out of 5 Stars. 411 reviews
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Bar's Leaks 1199 Radiator Stop Leak Automotive Additive, Vehicle Type: Universal, 11oz From $4.98

2 options
Available in additional 2 optionsFrom$498
Bar's Leaks 1199 Radiator Stop Leak Automotive Additive, Vehicle Type: Universal, 11oz
4734.5 out of 5 Stars. 473 reviews
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BlueDevil Oil Stop Leak 8 oz - Permanent Engine Oil Leak Sealer From $19.97

5 options
Available in additional 5 optionsFrom$1997
BlueDevil Oil Stop Leak 8 oz - Permanent Engine Oil Leak Sealer
2534.1 out of 5 Stars. 253 reviews
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Clearance 2Pcs Car Converter Exhaust Cleaning Liquid, Catalytic Converter Cleaner Car Cleaning Agent Remove Carbon Deposits Engine Interior Cleaning Exhaust Gas Catalysis 120ML From $7.99

Sponsored
From$799
2Pcs Car Converter Exhaust Cleaning Liquid, Catalytic Converter Cleaner Car Cleaning Agent Remove Carbon Deposits Engine Interior Cleaning Exhaust Gas Catalysis 120ML
114.2 out of 5 Stars. 11 reviews
XADO RED Flush Engine Oil Flush Cleaner - Removes Carbon & Sludge, Restores Oil Performance - 250 ml $29.99

Sponsored
$2999
current price $29.99XADO RED Flush Engine Oil Flush Cleaner - Removes Carbon & Sludge, Restores Oil Performance - 250 ml
Bar's Leaks Oil Seal Engine Oil Burning & Leak Repair, Automotive Additive, 16.9 oz From $21.53

5 options
Available in additional 5 optionsFrom$2153
Bar's Leaks Oil Seal Engine Oil Burning & Leak Repair, Automotive Additive, 16.9 oz
9304.6 out of 5 Stars. 930 reviews
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Bar's Leaks Block Seal Liquid Copper Coolant Leak Fix, Antifreeze and Coolants, 18 oz From $7.97

2 options
Available in additional 2 optionsFrom$797
Bar's Leaks Block Seal Liquid Copper Coolant Leak Fix, Antifreeze and Coolants, 18 oz
5354.6 out of 5 Stars. 535 reviews
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Bar's Leaks Liquid Aluminum Radiator & Heater Core Stop Leak Antifreeze & Coolant, 16.9 oz From $8.15

4 options
Available in additional 4 optionsFrom$815
Bar's Leaks Liquid Aluminum Radiator & Heater Core Stop Leak Antifreeze & Coolant, 16.9 oz
5094.6 out of 5 Stars. 509 reviews
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Bar's Leaks Head Seal Blown Head Gasket Repair, Automotive Additive, 33.8 oz From $32.99

5 options
Available in additional 5 optionsFrom$3299
Bar's Leaks Head Seal Blown Head Gasket Repair, Automotive Additive, 33.8 oz
10154.6 out of 5 Stars. 1015 reviews
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K-Seal Head Gasket Repair, 16 oz Bottle, for Head Gasket, Block, and Coolant Leaks From $22.97

2 options
Available in additional 2 optionsFrom$2297
K-Seal Head Gasket Repair, 16 oz Bottle, for Head Gasket, Block, and Coolant Leaks
2743.9 out of 5 Stars. 274 reviews
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Bar's Leaks Rear Main Seal Repair Additive, 16.9 oz From $11.99

5 options
Available in additional 5 optionsFrom$1199
Bar's Leaks Rear Main Seal Repair Additive, 16.9 oz
12814.7 out of 5 Stars. 1281 reviews
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Bar's Leaks High Mileage Cooling System Repair Antifreeze & Coolant 16.9 oz From $9.53

2 options
Available in additional 2 optionsFrom$953
Bar's Leaks High Mileage Cooling System Repair Antifreeze & Coolant 16.9 oz
5094.4 out of 5 Stars. 509 reviews
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Bar's Leaks 1100 Block Seal Head Gasket Sealant Automotive Additive, 20 oz $12.68

$1268
current price $12.68Bar's Leaks 1100 Block Seal Head Gasket Sealant Automotive Additive, 20 oz
5994.7 out of 5 Stars. 599 reviews
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Xado 1 Stage Magnum Revitalizant 60K Treatment and Additive for Heavy Duty Diesel Engine $99.90

Sponsored
$9990
current price $99.90Xado 1 Stage Magnum Revitalizant 60K Treatment and Additive for Heavy Duty Diesel Engine
Dura Lube Engine Treatment, Automotive Oil Additive for Gas and Diesel Engines, 32 oz From $15.97

Sponsored
From$1597
Dura Lube Engine Treatment, Automotive Oil Additive for Gas and Diesel Engines, 32 oz
2434.8 out of 5 Stars. 243 reviews
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Lucas Oil Power Steering Stop Leak 12 Ounce Automotive Additive From $12.98

5 options
Available in additional 5 optionsFrom$1298
Lucas Oil Power Steering Stop Leak 12 Ounce Automotive Additive
3524.5 out of 5 Stars. 352 reviews
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Rislone 4416 High Mileage Ring Seal Smoke Repair Automotive Additive, 16 oz From $6.74

5 options
Available in additional 5 optionsFrom$674
Rislone 4416 High Mileage Ring Seal Smoke Repair Automotive Additive, 16 oz
3774.6 out of 5 Stars. 377 reviews
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Bar's Leaks Block Seal Head Gasket Fix Automotive Additive 24 oz

Bar's Leaks Block Seal Head Gasket Fix Automotive Additive 24 oz
10934.6 out of 5 Stars. 1093 reviews
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STP Stop Leak and Stop Smoke High Mileage Engine Oil Additive, 15 fl oz From $8.10

5 options
Available in additional 5 optionsFrom$810
STP Stop Leak and Stop Smoke High Mileage Engine Oil Additive, 15 fl oz
924.6 out of 5 Stars. 92 reviews
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Bardahl Stops Oil Burning, Seals Empty Spaces Motor Oil, 16 oz $13.99

$1399
current price $13.99Bardahl Stops Oil Burning, Seals Empty Spaces Motor Oil, 16 oz
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Tammyyerke Engine Oil Dye Universal Fluorescent Oil Leak Test Dye Agent UV M9C8 $7.65

$765
current price $7.65Tammyyerke Engine Oil Dye Universal Fluorescent Oil Leak Test Dye Agent UV M9C8
STP Engine Stop Leak Engine Treatment Motor Oil, 14.5 fl oz $18.50

$1850
current price $18.50STP Engine Stop Leak Engine Treatment Motor Oil, 14.5 fl oz
24.5 out of 5 Stars. 2 reviews
Bar's Leaks Original Pelletized Formula Heavy-Duty Stop Leak, 11 oz $12.05

$1205
current price $12.05Bar's Leaks Original Pelletized Formula Heavy-Duty Stop Leak, 11 oz
924.3 out of 5 Stars. 92 reviews
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Mechanic in A Bottle for Gas & Diesel Fuel Systems 24 oz bottle. Fuel System Cleaner & Stabilizer for Peak Engine Performance $18.35

Sponsored
$1835
current price $18.35Mechanic in A Bottle for Gas & Diesel Fuel Systems 24 oz bottle. Fuel System Cleaner & Stabilizer for Peak Engine Performance
294.4 out of 5 Stars. 29 reviews
K&W FiberLock Head Gasket & Block Repair 32 fl oz $39.59 Was $52.38

Now$3959
current price Now $39.59, Was $52.38$52.38
K&W FiberLock Head Gasket & Block Repair 32 fl oz
313.8 out of 5 Stars. 31 reviews
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ATP AT-205 Re-Seal Automotive Additive for Rubber Seals and Gaskets, 8 Ounce (2 Pack) From $38.99

5 options
Available in additional 5 optionsFrom$3899
ATP AT-205 Re-Seal Automotive Additive for Rubber Seals and Gaskets, 8 Ounce (2 Pack)
424.6 out of 5 Stars. 42 reviews
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Best seller Permatex 30300 Head Gasket Repair - Multi-Purpose Stop-Leak, 16 fl. Oz, Seals Head Gaskets While Preventing Future Leaks From $15.64

5 options
Available in additional 5 optionsFrom$1564
Permatex 30300 Head Gasket Repair - Multi-Purpose Stop-Leak, 16 fl. Oz, Seals Head Gaskets While Preventing Future Leaks
104.9 out of 5 Stars. 10 reviews
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Lucas 10279 Automotive Engine Oil Stop Leak, Gallon Size Bottle $29.65

$2965
current price $29.65Lucas 10279 Automotive Engine Oil Stop Leak, Gallon Size Bottle
424.6 out of 5 Stars. 42 reviews
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Lucas Oil 11100Engine Oil Stop Leak Top Off Additive $12.91 $12.91/count

$1291
current price $12.91$12.91/count
Lucas Oil 11100Engine Oil Stop Leak Top Off Additive
164.2 out of 5 Stars. 16 reviews
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K&W 401232 Permanent Head Gasket and Block Repair 32 oz For Cars, Trucks, and Other Vehicles $43.11

$4311
current price $43.11K&W 401232 Permanent Head Gasket and Block Repair 32 oz For Cars, Trucks, and Other Vehicles
224.4 out of 5 Stars. 22 reviews
CD-2 4105R Stop Leak for Engine Oil - 15 oz. $13.23

$1323
current price $13.23CD-2 4105R Stop Leak for Engine Oil - 15 oz.
23.5 out of 5 Stars. 2 reviews
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Rislone High Mileage Transmission Stop Slip with Leak Repair, Automotive Additives, 16.9 oz From $9.99

5 options
Available in additional 5 optionsFrom$999
Rislone High Mileage Transmission Stop Slip with Leak Repair, Automotive Additives, 16.9 oz
74.1 out of 5 Stars. 7 reviews
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Blue Devil Pro BD12 Universal Leak Repair Automotive Additive, 12 oz $19.99 Was $24.95

Now$1999
current price Now $19.99, Was $24.95$24.95
Blue Devil Pro BD12 Universal Leak Repair Automotive Additive, 12 oz
Bar's Leaks Cooling System Stop Leak Antifreeze and Coolant, 11 oz

Bar's Leaks Cooling System Stop Leak Antifreeze and Coolant, 11 oz
634.5 out of 5 Stars. 63 reviews
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Automotive Smoke Machine 4.4oz Fluid Solution - Starter Size | Thick Smoke | Clean Output | OEM Approved for EVAP Leak, Vacuum, Exhaust, Turbo, Super Chargers, Fuel & Intake and More $9.99

$999
current price $9.99Automotive Smoke Machine 4.4oz Fluid Solution - Starter Size | Thick Smoke | Clean Output | OEM Approved for EVAP Leak, Vacuum, Exhaust, Turbo, Super Chargers, Fuel & Intake and More
65 out of 5 Stars. 6 reviews
Permatex 30301 Radiator Repair - Stop Leak, 16 fl oz, Protecting Against Coolant Loss, Stopping Leaks and Seepage from Head Gaskets From $14.00

5 options
Available in additional 5 optionsFrom$1400
Permatex 30301 Radiator Repair - Stop Leak, 16 fl oz, Protecting Against Coolant Loss, Stopping Leaks and Seepage from Head Gaskets
43.8 out of 5 Stars. 4 reviews
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(2 pack) Bar's Leaks Block Seal Head Gasket Fix Automotive Additive 24 oz

(2 pack) Bar's Leaks Block Seal Head Gasket Fix Automotive Additive 24 oz
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Engine Sealant,Automotive Sealant,Extreme Temperature Resistance for Engine Gaskets, Oil Pans & Fuel System Repairs From $12.98

2 options
Available in additional 2 optionsFrom$1298
Engine Sealant,Automotive Sealant,Extreme Temperature Resistance for Engine Gaskets, Oil Pans & Fuel System Repairs
31.7 out of 5 Stars. 3 reviews
K-Seal ST5516 Permanent Coolant Leak Repair 16oz. $24.51

$2451
current price $24.51K-Seal ST5516 Permanent Coolant Leak Repair 16oz.
43.3 out of 5 Stars. 4 reviews
Silverhook - Engine Stop Leak 350ml $32.89

$3289
current price $32.89Silverhook - Engine Stop Leak 350ml
K-Seal Heavy Duty ST5516 Coolant Stop Leak 16oz for Large Trucks, RVs, and Tractors $19.99 $1.25/fl oz

$1999
current price $19.99$1.25/fl oz
K-Seal Heavy Duty ST5516 Coolant Stop Leak 16oz for Large Trucks, RVs, and Tractors
494.1 out of 5 Stars. 49 reviews
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AtomEx Stop-Leak AEX123 Engine Oil Additive Automotive Additive 8 Ounce $19.00

$1900
current price $19.00AtomEx Stop-Leak AEX123 Engine Oil Additive Automotive Additive 8 Ounce
44 out of 5 Stars. 4 reviews
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