CRC Industries K&W Instant Cooling System Stop Leak

CRC Industries K&W Instant Cooling System Stop Leak is a chemical additive designed to seal leaks within a vehicle's cooling system.

Function: Permanently fixes leaks in radiators, head gaskets, engine blocks, heater cores, and freeze plugs.

Technology: Uses nanotechnology to fill cracks and crevices.

Application: One-step "pour & go" formula compatible with all types of antifreeze.

Size/Part Number: 15 fl oz (443 mL) bottle, Part Number 401214.

Disclaimer: Using stop leak products may not permanently fix large leaks and could potentially cause clogging in older systems if not used correctly.