The ARCAIR® Lever Assembly for the K-4000 is an essential component designed to enhance the functionality of your Professional Angle-Arc® torch. Measuring 1.5 x 3.5 x 8.1 inches, this lever assembly is manufactured in Mexico, ensuring quality and reliability for your welding needs. Compatible specifically with the K4000® torch model, it provides seamless integration, making it a valuable addition for professionals seeking precision and efficiency in their work.