Stop Leak(1000+)
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Lucas Oil 10278 Engine Oil Stop Leak - 1 Quart Automotive Additive From $12.32

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From$1232
Lucas Oil 10278 Engine Oil Stop Leak - 1 Quart Automotive Additive
4114.5 out of 5 Stars. 411 reviews
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Lucas Oil Power Steering Stop Leak 12 Ounce Automotive Additive From $12.98

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Lucas Oil Power Steering Stop Leak 12 Ounce Automotive Additive
3524.5 out of 5 Stars. 352 reviews
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STP High Mileage Oil Treatment and Stop Leak Additive, 15 fl oz From $6.98

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STP High Mileage Oil Treatment and Stop Leak Additive, 15 fl oz
4894.6 out of 5 Stars. 489 reviews
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In 25+ people's carts Lucas Oil Heavy Duty Oil Stabilizer for Engines, 32 oz From $14.44

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From$1444
Lucas Oil Heavy Duty Oil Stabilizer for Engines, 32 oz
10424.8 out of 5 Stars. 1042 reviews
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Bar's Leaks 1199 Radiator Stop Leak Automotive Additive, Vehicle Type: Universal, 11oz From $4.98

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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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Overall pick Bar's Leaks 1334 One Seal Stop Leak Automotive Additive, 11 oz From $5.94

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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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Lucas Oil 10278 Engine Oil Stop Leak - 1 Quart Automotive Additive From $12.32

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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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Best seller Super Tech Auto R-134a Refrigerant with Stop Leak, Self-sealing, 3 oz., Pack of 1, Vehicle Type Specific From $11.97

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Available in additional 2 optionsFrom$1197
Super Tech Auto R-134a Refrigerant with Stop Leak, Self-sealing, 3 oz., Pack of 1, Vehicle Type Specific
6754.1 out of 5 Stars. 675 reviews
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STP High Mileage Oil Treatment and Stop Leak Additive, 15 fl oz From $6.98

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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 Rear Main Seal Repair Additive, 16.9 oz From $11.99

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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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Lucas 10009 Transmission Fix Automotive Performance Additive 24 Ounce - Stops Transmission Slips From $14.44

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Lucas 10009 Transmission Fix Automotive Performance Additive 24 Ounce - Stops Transmission Slips
7504.7 out of 5 Stars. 750 reviews
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AtomEx Stop-Leak AEX123 Engine Oil Additive Automotive Additive 8 Ounce $19.00

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$1900
current price $19.00AtomEx Stop-Leak AEX123 Engine Oil Additive Automotive Additive 8 Ounce
44 out of 5 Stars. 4 reviews
K-Seal ST5501 Multi Purpose One Step Pour and Go Coolant Leak Repair 8 fl oz Bottle From $12.22

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Available in additional 3 optionsFrom$1222
K-Seal ST5501 Multi Purpose One Step Pour and Go Coolant Leak Repair 8 fl oz Bottle
8734.2 out of 5 Stars. 873 reviews
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BlueDevil Oil Stop Leak 8 oz - Permanent Engine Oil Leak Sealer From $19.97

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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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Bar's Leaks Liquid Aluminum Radiator & Heater Core Stop Leak Antifreeze & Coolant, 16.9 oz From $8.48

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Available in additional 4 optionsFrom$848
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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Lucas Oil Power Steering Stop Leak 12 Ounce Automotive Additive From $12.98

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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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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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Bar's Leaks 1000 High Mileage Engine Repair, Automotive Additive, 16.9 oz From $12.98

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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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Bar's Leaks Oil Seal Engine Oil Burning & Leak Repair, Automotive Additive, 16.9 oz From $20.00

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Available in additional 5 optionsFrom$2000
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 Head Seal Blown Head Gasket Repair, Automotive Additive, 33.8 oz From $32.99

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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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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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LUBEGARD Seal Fixx Multi-System Stop Leak (10 oz.) $19.99

$1999
current price $19.99LUBEGARD Seal Fixx Multi-System Stop Leak (10 oz.)
Bar's Leaks High Mileage Cooling System Repair Antifreeze & Coolant 16.9 oz From $9.53

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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 Block Seal Liquid Copper Coolant Leak Fix, Antifreeze and Coolants, 18 oz From $7.97

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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 1400 High Mileage Transmission Repair, Automotive Additive, 16 oz From $11.98

5 options
Available in additional 5 optionsFrom$1198
Bar's Leaks 1400 High Mileage Transmission Repair, Automotive Additive, 16 oz
3194.6 out of 5 Stars. 319 reviews
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Prestone AS145Y Radiator Stop Leak 11 oz Automotive Additive $19.99

$1999
current price $19.99Prestone AS145Y Radiator Stop Leak 11 oz Automotive Additive
15 out of 5 Stars. 1 reviews
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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Super Tech R-134a A/C Refrigerant Refill with Stop Leak, 12oz $18.88 $1.57/oz

$1888
current price $18.88$1.57/oz
Super Tech R-134a A/C Refrigerant Refill with Stop Leak, 12oz
634.3 out of 5 Stars. 63 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
Best seller Bar's Leaks Radiator Stop Leak Tablets $6.66 $3.78/oz

$666
current price $6.66$3.78/oz
Bar's Leaks Radiator Stop Leak Tablets
604.6 out of 5 Stars. 60 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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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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Hydraulic Oil Booster & Stop Leak $34.49

$3449
current price $34.49Hydraulic Oil Booster & Stop Leak
233.9 out of 5 Stars. 23 reviews
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LIQUI MOLY 250mL Radiator Stop-Leak $54.99

$5499
current price $54.99LIQUI MOLY 250mL Radiator Stop-Leak
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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
AT-205 Re-Seal Leak Stopper 8 Ounce - 4 Pack $70.30

$7030
current price $70.30AT-205 Re-Seal Leak Stopper 8 Ounce - 4 Pack
25 out of 5 Stars. 2 reviews
(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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Bar's Leaks Hydraulic Seal Hydraulic Stop Leak & Conditioner 32 oz $23.73

$2373
current price $23.73Bar's Leaks Hydraulic Seal Hydraulic Stop Leak & Conditioner 32 oz
1124.8 out of 5 Stars. 112 reviews
Bars Leaks 01194 6 Oz Radiator Stop Leak Concentrate $13.06

$1306
current price $13.06Bars Leaks 01194 6 Oz Radiator Stop Leak Concentrate
Mechanic In A Bottle Hydraulic Oil Fix $36.98 $1.54/fl oz

$3698
current price $36.98$1.54/fl oz
Mechanic In A Bottle Hydraulic Oil Fix
33.7 out of 5 Stars. 3 reviews
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Clearance Mos2 Anti-Friction Engine Mos2 Oil Additive 3.4 Oz Engine Oil Additive Oil Stop Leak Engine Lubricant Friction Reducer for Gas and Diesel Vehicles 1 Pack Was $14.99

Mos2 Anti-Friction Engine Mos2 Oil Additive 3.4 Oz Engine Oil Additive Oil Stop Leak Engine Lubricant Friction Reducer for Gas and Diesel Vehicles 1 Pack
Bars Leaks 01194 6 Oz Radiator Stop Leak Concentrate $13.07

$1307
current price $13.07Bars Leaks 01194 6 Oz Radiator Stop Leak Concentrate
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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Clearance Nsxcdh Radiator Stop Leak Powder,Car Water Tank Sealant 15 Ml,Quick Mix for Heater Core Hose,Anti Rust Compatible with Antifreeze,Auto Repair Additive $5.99 Was $6.99

Now$599
current price Now $5.99, Was $6.99$6.99
Nsxcdh Radiator Stop Leak Powder,Car Water Tank Sealant 15 Ml,Quick Mix for Heater Core Hose,Anti Rust Compatible with Antifreeze,Auto Repair Additive
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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A/C Pro Super Seal All-in-one Stop Leak, 11 oz, Aerosol, 1 Pack, California Compliant $35.88 $3.26/oz

$3588
current price $35.88$3.26/oz
A/C Pro Super Seal All-in-one Stop Leak, 11 oz, Aerosol, 1 Pack, California Compliant
134.1 out of 5 Stars. 13 reviews
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