We stock a large variety of parts to keep your aircraft flying. Weekly deliveries from our suppliers are always coming in. Parts are cost plus 20% on small items ($500 and less) and 10% on items over $500. Feel free to shop and bring your own oil and filters, etc. so long as the paperwork is valid. We won't install a random part found on the floor of uncle Billie's Barn... The advantage of ordering with us, is we get a discount and if its the wrong part it is a DeCosse Aero problem!