Mercury & Mariner 1998-2007 2-Stroke 3.0L 200 & 250 HP DFI Outboard Powerhead Parts Diagrams
This page offers a comprehensive selection of premium replacement components for Mercury and Mariner V6 3.0L 200-250 HP DFI (Direct Fuel Injection) outboard engines produced between 1998 and 2007. Whether you're rebuilding a powerhead or servicing general wear, you'll find critical parts such as thermostat kits, head O-rings, gasket sets, crankshaft seal kits, rod bearings, and connecting rods. Each item is carefully categorized—by part type and year range—ensuring the right fit. For example:
- Thermostats and O-ring kits are segmented by model years (1998-2000 vs. 2001+),
- Gasket sets tailored for 1997 only, 1998-1999, or 2000 and up,
- Crankshaft components like seal kits and wear sleeves are priced for easy rebuilding.
OBParts provides clear diagrams linking part numbers to visuals, along with convenient “Add to Cart” options for popular items such as Red Rhino and Pro Marine branded components.
The diagram above is a Mercury & Mariner Powerhead Assembly for V6 3.0L 200-250 HP DFI models from 1998 to 2007. The following parts correspond to the numbers on this diagram:
- Thermostat
- Head O-Ring Kit
We recommend the following kits for this powerhead:
The diagram above is of a Mercury/Mariner Crankshaft Assembly for V6 3.0L 200-250 HP DFI models from 1998 to 2007. The following parts correspond to the numbers on this diagram:
- Rod Bearing with Cage
- Wrist Pin Bearings
- Lower Main Bearing
- Rod Bolt
- Upper Crank Bearing
- Center Main Bearing
- Crankshaft Wear Sleeve
- Crankshaft Seal Kit
- Connecting Rod