What is the warranty on sierra marine parts? A leading supplier of marine engines and drive parts for over 35 years, Sierra Marine parts are unconditionally backed by their warranty. That means that the company will pay for shop labor, haul out and towing fees and all related incidental charges should a warranteed part fail.How do i contact sierra? In addition to SONAR Pro, dealers may call 217-324-9428 to discuss any such claim with a SIERRA representative. In order to process all claims quickly and efficiently, the following must be shipped directly to SIERRA via a traceable and insurable method (i.e. UPS, Federal Express, Registered U.S. Mail, etc.):How do i contact west marine customer service? United States & Canada. Weekdays: 8AM to 8PM (ET) Saturday: 9AM to 6PM (ET) Phone: 1-800-262-8464. Text: 1-800-262-8464. Email: [email protected]. Fax: 831-761-4421.Why choose sierra for customer support? Committed to providing unsurpassed service, the Sierra customer support team understands the importance of providing critical order status information, finding solutions and helping your business run smoothly and profitably.