This WSM powerhead rebuild kit is for Mercury and Mariner 200 HP 2.5L carbureted V6 powerheads using head gaskets and the top-guided rod configuration. Research of the WSM kit family identifies this application as carbureted 100-20-30 rather than an OptiMax/Pro XS DFI kit.
Fitment
- Mercury/Mariner 200 HP 2.5L carbureted V6: 1994-2004
Technical Specifications
- WSM standard-size kit: 100-20-30
- 6-cylinder 2.5L V6 powerhead
- 3.500-inch standard bore
- Carbureted induction
- Conventional head-gasket configuration
- Top-guided connecting rods
Piston Size Options
- Standard
- .010 oversize
- .015 oversize
- .020 oversize
- .030 oversize
- .040 oversize
Measure the finished cylinder bore before selecting piston size.
Complete Kit Includes
- 3 port-side and 3 starboard-side WSM piston kits with rings, wrist pins, and clips
- Complete gasket kit for the head-gasket/carbureted 2.5L V6 application
- 1 upper main bearing, 2 center main bearings, and 1 lower main bearing
- 6 upper and 6 lower connecting-rod bearings
- 12 connecting-rod bolts
Fitment Note
Mercury and Mariner V6 and L4 applications can differ by bore, rod-guidance style, induction system, cylinder-head sealing style, connecting-rod family, and serial range. Verify the technical details above against the engine before ordering.
Questions About This Product?
Have questions about this product? Email us at customerservice@marinepartswarehouse.com and include your motor information with your question.
