Bar's Leaks

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When purchasing a product, price is the consumer's primary concern. At present, Bar's Leaks has 46 products for sale. Bar's Leaks products range in price from $3.99 to $47.23, and the average price of all the products is about $15.23. It's affordable for most consumers, and you can feel free to pick your favorite products.

We found that most of the Bar's Leaks products are manufactured by Bar's Products. The manufacturer provides Bar's Leaks with a steady supply of products, and they have a good cooperative relationship with each other.

You can confidently purchase Bar's Leaks products on Amazon.com. The brand holds an average rating of 4.2, testifying to its excellent reputation.

Bar's Leaks Best Sellers

Last Updated: Jan 9, 2026

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

Engine & Oil Fluid Additives

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REPAIRS LEAKING MAIN SEALS AND GASKETS: We have designed this product to work in all gasoline and diesel engines including turbocharged, EcoBoost, hybrid and even racing engines.

RENEWS WORN VALVE SEALS AND GUIDES: Your vehicle is a good candidate for Bar's Leaks Oil Seal Engine Oil Burning & Leak Repair if it does not consume more than one quart of oil per day.

STOPS OIL BURNING & BLUE EXHAUST SMOKE: This covers 3, 4, 5, 6, 8 and 10 cylinder engines in all cars, trucks, vans and SUV's. Our product can also be used in heavy-duty applications referencing the appropriate dosage level.

SEAL ALL OTHER OIL LEAKS, DRIPS AND CONSUMPTION: This applies to a wide range of other motor applications too - tractors, boats, RV's, motorcycles (including wet clutch), ATV's, lawn equipment.

MADE IN THE USA

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Bar's Leaks Cooling System Radiator Stop Leak 16.9 oz.

Fuel Leak Detectors

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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

Seals freeze plug leaks

Repairs gasket leaks

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

Air Cleaner Mounting Gaskets

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REPAIR BLOWN HEAD & INTAKE GASKET LEAKS: The fastest, safest way to solve your vehicle's coolant-related head gasket issues.

SEAL WARPED / CRACKED HEADS & BLOCKS: Your vehicle is a good candidate for this solution if it can idle for 15 minutes without overheating or having to add coolant.

ANTIFREEZE COMPATIBLE, NO FLUSHING REQUIRED: Use with ALL types of 50-50 mix coolant including yellow, orange, pink, red, blue and green silicate based & non-silicate based (OAT / HOAT) antifreeze, and water. No draining or thermostat removal required.

REINFORCED WITH CARBON FIBERS: Works with ALL gasoline and diesel engines. This also for use in all racing applications.

Bar's Leaks Rear Main Seal Repair, 16.9 oz

Fuel Additives Fuel Injector Cleaner Additives

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Seals timing cover, cam seal, rear main and other hard to stop oil leaks

Add to engine oil

Specifically designed to seal rear main leaks, but also works better than a conventional stop leak on all other leaks

Add entire bottle of Rear Main Seal Repair to engine crankcase (where you add oil) at or between oil changes. Do not overfill. Most leaks will stop within 100 miles or 2 days of driving

Bar's Leaks 1109 Liquid Copper Block Seal, Intake and Radiator Stop Leak, 18 oz. | One Step, Safe for All Cooling Systems

Radiator Sealers

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PERMANENTLY FIXES COOLING SYSTEM LEAKS: . One step formula permanently repairs coolant loss problems on cars, trucks, vans, SUV's and RV's.

ANTIFREEZE COMPATIBLE - NO DRAINING REQUIRED: Antifreeze compatible sodium silicate liquid glass penetrates large and small leaks in plastic, aluminum and cast iron heads, blocks, intake manifold & gaskets, freeze plugs, heater cores and radiators.

ONE STEP - POUR DIRECTLY INTO RADIATOR - EASY TO USE: Fiber additives lock together with liquid to increase strength and promote a permanent seal. It will not harm the coolingsystem when used properly, no draining is required.

USE WITH ALL TYPES OF TRADITIONAL OR EXTENDED LIFE COOLANT: Use with ALL types of traditional or extended life coolant including yellow, orange, pink, red, blue, purple and green silicate based & non-silicate based (OAT/HOAT) 50-50 mix antifreeze, and/or water.

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Bar's Leaks 1334 One Seal Stop Leak - 11 oz

Gasket Sealers

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WORKS WITH ALL ENGINE OIL, TRANSMISSION FLUID AND POWER STEERING FLUIDS: Bar's Leaks One Seal multipurpose stop leak effectively seals all minor engine oil, transmission and power steering system leaks.

SAFE AND EASY TO USE, GUARANTEED: One bottle will treat one engine oil, transmission fluid or power steering fluid system leak.

3X SEALER: It's specifically designed to stop seal and gasket leaks caused by normal wear and age.

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

Engine & Oil Fluid Additives

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

Bar's Leaks 1000 High Mileage Engine Repair, 16.9 oz | Restores Performance, Increases Compression & Horsepower, Stops Leaks, Noise & Smoking

Engine & Oil Fluid Additives

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RESTORES PERFORMANCE: Contains a combination of the best performance additives to repair the most common oil-related problems

INCREASES COMPRESSION AND HORSEPOWER: Restores lost compression and power, reduces noise and oil consumption, while improving the performance of worn cylinders, rings, bearings, and seals

STOPS LEAKS, NOISE, AND SMOKING: For most vehicles, this is your last chance before paying an expensive repair bill or replacing the vehicle

FRICTION MODIFIERS: Engine Repair can be used to top off the existing oil when low, or add a bottle when changing the oil and filter

REPAIR-IT: Engine Repair-It can be used to top off existing oil when low or add a bottle when changing oil.

Bar's Leaks 1177 Radiator Stop Leak Tablets, 1.76oz

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PROFESSIONAL STRENGTH FORMULA: Bar's Leaks Radiator Stop Leak Tablets inhibit the formation or rust and scale, neutralize pH imbalance, controls electrolysis, lubricates and seals internal, external and coolant-to-oil leaks.

OEM USED AND APPROVED: Same tablets as used by manyOEM auto and truck manufacturers around the world.

SEALS LEAKS AND SEEPAGE: For continued protection of the entire cooling system, repeat Bar's Leaks application every 15,000 miles or once per year.

WORKS WITH ALL TYPES OF ANTIFREEZE OR WATER: Professional strength formula works with ALL types and colors of antifreeze coolant including conventional, extended life, waterless and straight water.

Bar's Leaks Radiator Stop Leak Tablets inhibit the formation or rust and scale, neutralize pH imbalance, controls electrolysis, lubricates and seals internal, external and coolant-to-oil leaks.

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Bar's Leaks Block Seal Head Gasket Fix

Gasket Sealers

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SAFELY SEALS GASKET AND OTHER SEVERE LEAKS: One step formulation contains a combination of antifreeze compatible sodium silicate sealing liquid and various size gasket sealing particles which penetrate gaps and cracks then harden to permanently stop leaks. Heavy duty formula works on aluminum and cast iron heads & blocks, along with sealing all other engine cooling system leaks better than a traditional stop leak. This includes repairing head gaskets, cylinder heads, intake gaskets, cracked blocks and freeze plugs.

QUICKLY AND PERMANENTLY STOPS COOLANT LEAKS: This works because of the extreme heat inside the combustion chamber (5000°F) that acts as a catalyst to permanently harden the material to make it stronger than the actual head gasket itself.

ONE STEP - NO DRAINING REQUIRED - EASY TO USE: Your vehicle is a good candidate for this product if it can idle for 20 minutes without overheating or having to add coolant.

Made in the USA

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Bar's Leaks Rear Main Seal Repair (Pack of 6)

Fuel Additives Fuel Injector Cleaner Additives

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STOPS ALL OIL LEAKS: Works with ALL vehicle types including gasoline, diesel and turbocharged.

SEALS TIMING COVER, CAM SEAL, REAL MAIN LEAKS: Specifically designed to seal rear main leaks, but also works better than a conventional stop leak on all other leaks. This includes the timing cover seal, cam seals, O-Rings and other gaskets.

SEAL RESTORER: Bar's Leaks Rear Main Seal Repair restores the seal to like new condition and also contains additives to stop leaks in severely worn seals and crankshafts.

SEAL POLYMER: Compatible with all petroleum based engines oils including high-mileage and synthetic.

DOSAGE: One bottle treats 4 to 6 quarts of oil. Larger systems use 1 bottle for every 5 quarts of oil capacity. For small engines including 4 cycle / stroke motorcycle, ATV, lawn mowers and other engines use approximately 3 to 4 ounces per quart of capacity.

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Bar's Leaks High Mileage Cooling System Repair

Cooling System Additives

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Stops Cooling System Leaks

Compatible with all brands of anti-freeze including conventional green or blue and extended life red/orange or yellow (OAT/HOAT) coolant

Premium Carbon Fiber Formulation For Extended Protection

Stops cooling system leaks

Bar's Leaks Axle and Differential Gear Repair, 16.9 Oz

Cooling System Additives Engine & Oil Fluid Additives

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STOPS PINION, AXLE, OUTPUT SHAFT AND OTHER SEAL LEAKS: This is a treatment additive for use with automotive, heavy duty, agricultural, marine and industrial gear oils.

ANTI-WEAR AW AGENTS: Superior anti-wear, anti-foam and anti-corrosion protection.

SEAL CONDITIONER: Extends system life by stopping leaks, reducing noise and improving gear performance.

PERFORMANCE ADDITIVE BOOSTER: Designed to mix with all synthetic and conventional petroleum GL-4, GL-5, MT-1 gear oil / lube grades including 75W-90, 80W-90, 75W-140, 85W-140 and all others.

Manufactured in the USA, this product works in all manual gearboxes, differentials, open & posi axles and more. Stops pinion, axle, output shaft and other seal leaks. Reduces grinding, whining, clunking and protects gears.

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

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REDUCES NOISE AND SMOOTHES OUT HARD STEERING: A unique dual cavity bottle containing a combination of the best performance additives to repair the most common power steering fluid related problems.

STOPS LEAKS AND RECONDITIONS RACK & PINION: Power Steering Repair can be used to top-off the existing fluid when low, or add a bottle when changing fluid.

RESTORES PREFORMANCE: Works on all vehicles, domestic and import.

ADDS PROTECTION: Compatible with ALL types of power steering fluid or ATF, including petroleum, mineral oil and synthetic formulas.

REPAIR-IT: Power Steering Repair-It works with all types of power steering fluid or ATF

Bar's Leaks PLT11 Pelletized HD Radiator Stop Leak - 11 oz.

Rust Converters

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Seals leaks

Conditions cooling system

Inhibits rust and corrosion

Lubricates water pump seals

Helps control electrolysis

Bar's Leaks Rear Main Seal Repair, 16.9 oz (Pack of 2)

Fuel Additives Fuel Injector Cleaner Additives

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The information below is per-pack only

Seals timing cover, cam seal, rear main and other hard to stop oil leaks

Add to engine oil

Specifically designed to seal rear main leaks, but also works better than a conventional stop leak on all other leaks

Add entire bottle of Rear Main Seal Repair to engine crankcase (where you add oil) at or between oil changes. Do not overfill. Most leaks will stop within 100 miles or 2 days of driving

Bar's Leaks High Mileage Transmission Repair-It, 16.9 Fl Oz

Fuel Leak Detectors

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STOPS LEAKS, SLIPPING AND ROUGH SHIFTING: Reduces rough shifting and friction, while eliminating slip, controlling temperature, and repairing shudder, chatter and whining.

RESTORES PERFORMANCE: Premium high mileage formula restores transmission performance and saves on costly transmission / transaxle repairs.

FLUID STABILIZER: Use when topping off existing fluid when low, or add a bottle when changing the fluid.

SEALS CONDITIONERS: Stops leaks, slipping and rough shifting. Reduces heat & friction, and stabilizes fluid.

REPAIR IT: Transmission Repair-It works with all types of transmission fluids

Bar's Leaks 1400-4PK Transmission Repair-It, 16.9 oz (Pack of 4)

Fuel Leak Detectors

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STOPS LEAKS, SLIPPING AND ROUGH SHIFTING: Reduces rough shifting and friction, while eliminating slip, controlling temperature, and repairing shudder, chatter and whining.

RESTORES PERFORMANCE: Premium high mileage formula restores transmission performance and saves on costly transmission / transaxle repairs.

FLUID STABILIZER: Use when topping off existing fluid when low, or add a bottle when changing the fluid.

SEALS CONDITIONERS: Stops leaks, slipping and rough shifting. Reduces heat & friction, and stabilizes fluid.

REPAIR IT: Transmission Repair-It works with all types of transmission fluids

Bar's Leaks 1630 Power Steering Stop Leak - 11 oz,Grey

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1 bottle treats 4 to 5 quarts of oil

Stops and seals steering fluid leaks

Works with all types of power steering leaks

Part number: 1630

Bar's Leaks 1100 Head Gasket Repair - 20 oz.

Gasket Sealers

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Stops block leaks

Seals cracked cylinder heads and blocks

Repairs blown head gaskets

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

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.

Included components: Unit, Instruction Guide

Bar's Leaks FAQs

Is Bar's Leaks Legit?

Yes, Bar's Leaks is a legitmate brand on Amazon. After conducting a comprehensive analysis of 25,389 customer reviews for Bar's Leaks products on Amazon, we have determined its average rating. Offering great value and satisfying quality, Bar's Leaks has achieved a respectable rating of 4.2 from many customers, showing that its products meet customer expectations. While there may have been minor issues reported occasionally, overall, it is safe to make purchases from Bar's Leaks on Amazon.

Amazon has strict policies and safety measures in place that ensure only legitimate sellers and products are allowed on their platform. It also provides a secure payment gateway and offers buyer protection, ensuring your transaction is safe. In the unlikely event that there's an issue with your purchase, Amazon's customer service and return policies are designed to protect your interests.

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We analyze millions of Bar's Leaks products reviews and customer reviews to recommend the best picks for most consumers. We have a professional team with decades of experience to test the products, which can help ensure that we provide our readers with accurate advice and best recommendations.

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Go to the Bar's Leaks page.
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Who are the manufacturers of the Bar's Leaks products?

Most of the Bar's Leaks products are produced by Bar's Products. The manufacturer provides Bar's Leaks with a steady supply of products, and they have a good cooperative relationship with each other.

What is the purpose of your brand guide?

Our mission is to provide you with the most up-to-date and objective information about the Bar's Leaks products, helping you make more informed buying decisions. We recommend best choices of the products from the Bar's Leaks brand, helping you make better shopping choices with less time and energy.

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