This is a silicone radiator/heater hose for Topkick and Kodiak trucks. This hose fitment is unknown. The hose does come with clamps on each end. Please make sure your part looks like this one or has matching part numbers for the correct fitment. 15" Long. 7" wide. This hose bottlenecks down to a smaller size. The big end (on the "J" end) measures 1.25" in diameter. The small end is 1" in diameter.

New. Never Installed. OEM part. Bulk Overstock

GM Part # 15838445 (number on the item)