Meet the K&W Stop Leak solutions lineup:

K&W offers a complete line of Stop Leak products that will get you back on the road fast. K&W leak solutions are affordable and effective alternatives to costly mechanical repairs and parts replacements. Whether your leak is in your radiator, automatic transmission, power steering, or engine, we can help you diagnose and fix the problem quickly and affordably.

When used properly, K&W Stop Leak products can save you both time and money! To ensure that you get the best results, it’s very important to read all label instructions completely before using any products in your vehicle. K&W products are proven to perform, and we guarantee results with our Money Back Guarantees.

Compare K&W Stop Leak Solutions

More Great Products from K&W:

Look for our full line of K&W products for repair and maintenance of your vehicle’s cooling system, engine, transmission and power steering. 

Whether you’re a ‘weekend mechanic’ or an auto service pro, K&W has a cost-effective solution to repair your vehicle’s leak. Not just for passenger cars, K&W Stop Leak products may be used in gasoline and diesel engines. In cars, trucks, buses, and heavy-duty equipment as well as construction and farm equipment.

We have a solution for almost every leak!