Revitalize your 2005 Caterpillar 18.1L C18 engine with the New Turbo CHRA, models GTA5518B, GTA5518BS, part number 754190-5034S, from Aftermarket. This CHRA is designed for effective turbocharger maintenance or upgrade. It includes a 1-year manufacturer's warranty. Cross-reference number is 301-9278.