Keep your engine running cool and protected with this genuine Peterbilt OEM radiator cap. Engineered specifically for Peterbilt trucks, this heavy-duty silver cap features a precise 7 PSI pressure rating to maintain optimal cooling system performance. The RC0730 model is constructed with robust materials to withstand the demanding conditions of commercial trucking operations. Its secure sealing design helps prevent coolant loss while maintaining proper system pressure for efficient heat transfer. The cap's ergonomic design allows for easy removal and installation during routine maintenance checks. This OEM component ensures perfect fitment and reliable operation, making it an essential replacement part for maintaining your Peterbilt's cooling system integrity. Don't compromise on quality when it comes to your engine's cooling - trust this genuine Peterbilt radiator cap to deliver the performance your truck demands.