OEM or aftermarket? 04-SL1.00-O-5 - NTE Electronics - Split Loom, 1", Orange, 5FT/RL Try google: orange split loom - Google Search
Split loom tubing is available at most hardware stores (such as OSH / Home Depot) and auto parts stores (O'Reilly / Pep Boys). If you're looking for colored tubing, Amazon and eBay's got plenty.