Want to know more about how your engine is breaking-in or wearing? Curious about whether or not your oil is doing its job? Want to be ahead of problems that may develop? PartsVu has partnered with Blackstone Laboratories and we are now offering professional oil analysis kits. Results are typically received in a few days via email. Shop now.Mercury 100 Hour Service Kit Verado L6 8M0120657. The Mercury Verado L6 100 Hour Service Maintenance Kit - 8M0120657 includes the essential maintenance components required to perform the recommended 100-hour service on Mercury Verado inline-six outboards ranging from 200 HP through 350 HP. This kit is designed for engines with serial numbers 2B144123 and above and provides the oils, filters, and seals needed to maintain performance and reliability.. Routine 100-hour maintenance is critical for protecting engine components, maintaining proper lubrication, and ensuring efficient fuel delivery. This service kit simplifies scheduled maintenance by bundli