✦ Ground shipping $14.95 — free over $150✦ Live stock — re-checked when you pay✦ Real prices, no dealer markup games✦ Questions answered by a human: 801-361-3010✦ Licensed Utah dealer № 140069✦ Ground shipping $14.95 — free over $150✦ Live stock — re-checked when you pay✦ Real prices, no dealer markup games✦ Questions answered by a human: 801-361-3010✦ Licensed Utah dealer № 140069
Shop › Bottom End
Vertex Piston Kit — 91.93 mm — Yamaha WR/YZ400F
In stock

Vertex Piston Kit — 91.93 mm — Yamaha WR/YZ400F

Vertex · #0910-1902 · Bottom End / Engine
  • The piston is heat-treated with aT-5 hardening and tempering cycle
  • The piston skirt is treated with a Molybdenum Disulphite coating for a faster break-in time and increased piston life
  • Forged replica piston is a forged OE replacement
  • Replica piston and all rings are OEM replacement
  • Piston kit includes piston, ring, wrist pin and circlips
$262.95
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 Vertex
Everything we carry from Vertex →
Description & features5 features

Kit Includes:

• Piston

• Ring Set

• Wrist Pin

• Circlips

  • The piston is heat-treated with aT-5 hardening and tempering cycle
  • The piston skirt is treated with a Molybdenum Disulphite coating for a faster break-in time and increased piston life
  • Forged replica piston is a forged OE replacement
  • Replica piston and all rings are OEM replacement
  • Piston kit includes piston, ring, wrist pin and circlips
Specifications13 specs
Displacement
400 cc
Piston Material
Forged 2618 Aluminum
Engine Type
4-Stroke
Riding Style
Street, Off-Road
Skirt Coating
Molybdenum Disulphite
Compression Ratio
12.5:1
Cylinder Diameter
92.00 mm
Units
Kit
Piston Diameter
91.93 mm
Style
Forged Replica
Shipping weight
0.93 lb
Package size
4.7 × 4.6 × 3.7 in
Country of origin
Italy
Fitment2 models · Yamaha
Yamaha2 models
  • WR400F1998–2000
  • YZ400F1998–1999
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 #
0910-1902
Vertex part #
22567A
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 Vertex?
Yes. It’s new and genuine, straight from Salto — Vertex part #22567A.