WSM Top End Kit - .5mm - Yamaha 54-540-12
Part Number: 09031418WSM
- SKU:
- 09031418
- UPC:
- 865369357260
- MPN:
- 54-540-12
- Condition:
- New
- Availability:
- Ships Same Business Day
- Weight:
- 1.80 LBS
Prop 65 Warning
Prop 65 Warning
cancer & reproductive harm
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Description
A properly sized top end directly impacts ring seal, compression ratio, and combustion efficiency—all critical factors in extracting reliable power from your 4-stroke engine. WSM's .5mm oversized pistons are precision-cast to OEM specifications, ensuring consistent fitment and durability across multiple heat cycles. This complete kit eliminates the guesswork of sourcing individual components, giving you everything needed for a professional-grade rebuild.
- Piston set (.5mm oversized)
- Piston rings (full set)
- Wrist pins and clips
- Needle bearings
- Cylinder head gasket
- Base gasket
- Intake gasket
- Exhaust gasket
- Oil filter included
- 4-stroke engine compatible
- Yamaha fitment (MPN 54-540-12)
- Bolt-on assembly
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