This WSM powerhead rebuild kit is for Yamaha 150 and 200 HP 90° V6 EFI outboards using the 6R5 connecting-rod family. The 3.544-inch bore kit includes the major internal components needed for an application-specific powerhead overhaul.
Fitment
- Yamaha 150 HP V6 EFI: 1993-2008
- Yamaha 200 HP V6 EFI: 1993-2000
- Yamaha Jet 150 HP V6: 1994-2000
- Yamaha Jet 200 HP V6: 1993-1995
Technical Specifications
- WSM standard-size kit: 100-275-40
- 6-cylinder 90° V6 EFI powerhead
- 3.544-inch standard bore
- 6R5 connecting-rod application; OEM rod family 6R5-11650-01-11
Piston Size Options
- Standard
- .010 oversize
- .020 oversize
- .030 oversize
- .040 oversize
Measure the finished cylinder bore before selecting piston size.
Complete Kit Includes
- 6 WSM piston kits with rings, wrist pins, and clips; Standard or Platinum option depending on selection
- Complete gasket kit: 2 head gaskets, 2 head-cover gaskets, 1 base gasket, 6 reed gaskets, 1 intake-manifold gasket, 1 intake-manifold-to-block gasket, 2 exhaust gaskets, 2 upper-bearing O-rings, 1 lower-bearing O-ring, 2 fuel-pump gaskets, 2 thermostat gaskets, 1 cover gasket, 1 upper crank oil seal, 2 lower crank oil seals, 1 O2-sensor gasket, and 1 bypass gasket
- 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
Outboard applications can vary by horsepower, year, bore size, rod-guidance style, and model or serial range. Compare the fitment and technical details above with your 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.
