- Brand: Yamaha
- Size: 350 HP
- Style: V8 - 4-Stroke
- Condition: Used
- SKU: 42673 PWH
- Manufacturer Part Number: 6AW-15100-00-9S 99999-03838-00
- Country of Manufacture: Japan
- Motor & Engine Type: Yamaha
- Part Type: Motors, Engines & Components
- Surface Finish: Painted, Gray
- Inventory Number: 42673 PWH
- Website Category: Powerhead
- Website Sub Category: Complete Powerheads
- UPC: N/A
- Shipping: $300.00
Part Number
Also Replaces
◆ 99999-03838-00 (superseding service assembly)
Condition
- ◆Bare crankcase only — no crankshaft, pistons, or other internals. See the photos for exactly what is included.
- ◆Removed from a freshwater engine that had a blown head gasket. The cylinder walls were flex-honed to clear light surface rust; the block is sound and ready to install.
- ◆Sold AS-IS with no returns — comes exactly as pictured.
Fitment
- ◆Yamaha F350, 350 HP, 5.3L V8 four-stroke — 2007–2008.
- ◆This is the 6AW-series V8 crankcase, not a complete powerhead.
Donor: Loose
We’ve cross-referenced fitment with the resources available to us; it may not cover every model in the years and horsepowers listed. Verify the part number or your engine serial before purchasing — we’re glad to help.
SCO |
Our Guarantee
While we do not accept returns on this part, we promise to do our very best to describe and photograph it accurately and to be straight with you about its condition. If something doesn’t sit right after it arrives, send us a message — a real person on this end will help make it right.
Disclaimer
We use various web resources to cross-reference and describe our parts. These are not always 100% accurate but they are accurate to the best of our knowledge. Verify by model or serial number that you’re getting what you need.

