In stock
Wiseco Piston Kit with Gaskets — 40.00 mm — Yamaha PW50
- Dedicated forgings and additional lightening operations allow for optimized strength to weight ratio
- Designed and built for each specific 2-stroke engine
- Engineered, forged and machined in the USA
- Kit includes piston(s), ring set, wrist pin(s), circlips, bearing(s) and gaskets
$171.95
In stock. Ships in 2–4 business days · free shipping over $150.
View cart & check out →
Questions? Call the shop: 801-361-3010
Real shop · real humans · 1231 N 1300 W Ste A, Centerville, UT 84014
Shop all Wiseco
Everything we carry from Wiseco →
Everything we carry from Wiseco →
Description & features4 features
Kit Includes:
• Forged Series Piston
• Ring Set
• Wrist Pin
• Circlip
• Bearing
• Gaskets
- Dedicated forgings and additional lightening operations allow for optimized strength to weight ratio
- Designed and built for each specific 2-stroke engine
- Engineered, forged and machined in the USA
- Kit includes piston(s), ring set, wrist pin(s), circlips, bearing(s) and gaskets
Specifications16 specs
- Bore Size
- 40.00 mm
- Piston Diameter
- 39.96 mm
- Type
- Top End
- Riding Style
- Off-Road
- Model
- Forged Series
- Skirt Coating
- Non-Coated
- Cooling System
- Air Cooled
- Stroke Length
- 39.20 mm
- Units
- Kit
- Bore - Oversize
- Standard
- Engine Type
- 2-Stroke
- Piston Material
- 4032 Aluminum Alloy
- Displacement
- 49 cc
- Shipping weight
- 0.65 lb
- Package size
- 6.7 × 5.8 × 4.8 in
- Country of origin
- USA
Fitment2 models · Yamaha
Yamaha2 models
- PW 502010–2011
- PW501985–2009, 2012–2026
Fitment comes from the catalog data for this part. Double-check your year, model and trim before you order — or call the counter at 801-361-3010 and we’ll check it with you.
Part numbers
- Salto part #
- 0903-0275
- Wiseco part #
- PK1157
Shipping
In stock. Ships in 2–4 business days by ground.
Ground shipping is $14.95, free on orders over $150. Stock is checked again before your card is charged.
Questions4 answers
- Is it in stock?
- Yes — it’s in stock right now. We check again the moment you order, before anything is charged.
- How fast will it get to me?
- Usually 2–4 business days by ground.
- Will it fit my machine?
- It’s listed for the models in the Fitment section above. Not sure about your trim or year? Call the counter at 801-361-3010 and we’ll check it with you.
- Is this genuine Wiseco?
- Yes. It’s new and genuine, straight from Salto — Wiseco part #PK1157.
