Knisley Welding

QAA is your go-to destination for aircraft accessories. We are proud to carry Knisley Welding, a Hartzell brand synonymous with quality and innovation in the aviation industry. 

Knisley Welding has been a family-owned and operated business since 1974. The company was born to fill a need for aircraft exhaust systems that were difficult to find at that time. Today, the brand is known for its unrivaled craftsmanship and tailored solutions and joins the ranks of superior aircraft accessories that are trusted by aviation professionals.

Knisley’s aircraft accessories are designed specifically to meet the needs of a variety of different aircraft models. With our supply of their products, you can experience precision, durability, and meticulous attention to detail that defines Knisley Welding’s products.

Explore Our Knisley Welding Collection

Whether you're looking to upgrade your exhaust system, optimize your engine performance with a new engine mount, or enhance and protect your aircraft with heat shields and cowling solutions, QAA has a great selection of Knisley Welding accessories.

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Testimonials

The exhaust part has arrived in good condition. Thank you very much for your excellent service. I will definitely recommend you to others.
--C.E., United Kingdom

I just wanted to say thank you for the EXCELLENT customer service/sales you provided. The mufflers arrived today just as you promised.
--R.P., Illinois

Just a personal note to thank you for your most professional and friendly service. The tailpipe arrived 2 days ago and is perfect.
--M.P., Australia

I appreciate being able to give you the business. Each time I've purchased from you folks it has been a good experience.
--J.A., New Jersey

I really appreciate your help on the exhaust for the Cessna 310I. The new exhaust was high quality and the fit was perfect. Your service was outstanding!!
--W.M., Arkansas

I just wanted to forward a BIG thank you to all of you at aircraftexhaust.com! It was easy to make the order and the spare parts were sent to us quickly. We will definitely recommend you to all other aero clubs in Sweden who need new exhaust!
--R.J., Sweden

Just wanted to send a quick note and say thanks. I received my order as promised. Owning my own business, I really appreciate the friendly, helpful, fast service. Nice job.
--R.F., Ohio

Arrived this afternoon as scheduled! Thanks for the special handling. This is precisely why I use you...Thanks again.
--R.B., Georgia

Just got my exhaust and am very impressed so far. The stacks look like works of art and I am very happy to have the slip joint feature. 
--P.B., Tennessee