Upper Door Seal For GMC Yukon, Yukon XL 2500 2000-2006 21993936; LM 121-SFor 4 door crew cab trucks, this seal, replacing OEM #21993936, is designed to press onto the upper part of the body, ensuring a snug and reliable fit. Crafted from high quality ozone resistant EPDM rubber, it offers durability and long lasting performance, even in harsh weather conditions. The accurate seal profile ensures a perfect fit, making it an essential replacement for maintaining your vehicle's integrity. This hard to find part is compatible