300-Hour Service
A deeper, multi stage inspection built for engines that have logged real time on the water
Schedule Your 300-Hour ServiceWhat Is the 300-Hour Service?
By 300 hours your engine has been through a full range of conditions, from short runs to long days on the water, and this service is built to match that history.
It goes beyond a standard oil and filter change to look closely at components that only start to show wear at this stage, so nothing gets overlooked simply because it still runs fine.
We work through this service in a set sequence, the same way every time, so nothing gets skipped and every finding is recorded against your engine’s maintenance history.
How the 300-Hour Service Works
A set sequence we follow every time, so nothing gets missed
Intake and History Review
We start with your engine’s maintenance history and any notes from your last visit before a single tool comes out.
Full Fluid and Filter Service
Oil, fuel, and gear lube filters changed, and every fluid brought back to the manufacturer’s spec.
Deep Component Inspection
Water pump, thermostat, anodes, and drive components checked closely for wear that only shows at this stage.
Adjustment and Calibration
Timing, idle, and linkage adjustments made where our findings call for them.
Water Test and Sign Off
A full water test under load, then a written summary of everything we found and did.
Ready to Schedule Your 300-Hour Service?
Fill out the form below and a member of our team will reach out to find a time that works for you and your boat.
Why Boat Owners Choose
Tight Lines Marine
Factory Trained Technicians
Every 300-hour service follows the manufacturer’s own schedule, so your warranty stays fully intact.
A Documented History
Every finding is recorded, so you always know exactly what your engine has been through.
One Shop for the Whole Job
From your first check through every service after it, your boat stays with the team that knows its history.
300-Hour Service FAQ
It covers components that only need attention once real hours have accumulated, like drive components and deeper cooling system parts, in addition to everything covered at the 20 and 100 hour marks.
Yes. Every 300-hour service ends with a written summary of what we found and what we did, so you have a clear record for your own files.
Plan for a full day. If our inspection turns up something that needs parts on order, we will call before it affects your schedule.
Yes. This is a longer service than earlier checks, so scheduling ahead lets us set aside the right amount of time for your engine.
Keep Your Boat Running
the Way It Should
Schedule your 300-hour service today, or reach out with any questions about timing or coverage.