✦ Ground shipping $14.95 — free over $150✦ Live distributor 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 distributor 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 › Top End
Prox Piston Kit — 67.97 mm — Yamaha WR250/YZ250
In warehouse stock

Prox Piston Kit — 67.97 mm — Yamaha WR250/YZ250

Prox · #PX-7080D · Top End / Engine
  • Manufactured in Japan and designed to be OEM replacement
  • Cast from a high-silicon-content aluminum alloy that meets or exceeds OEM specifications, then CNC-machined to extremely close tolerances
  • Kit includes piston, ring kit, wrist pin, and circlips
$132.95
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
Description & features3 features

Piston has reed cut out.

  • Manufactured in Japan and designed to be OEM replacement
  • Cast from a high-silicon-content aluminum alloy that meets or exceeds OEM specifications, then CNC-machined to extremely close tolerances
  • Kit includes piston, ring kit, wrist pin, and circlips
Specifications14 specs
Compression Ratio
Standard
Units
Kit
Piston Material
Aluminum Alloy, Cast
Bore Size
68.00 mm
Riding Style
Off-Road
Bore - Oversize
Standard
Type
Standard Size D
Piston Size
67.97 mm
Displacement
250 cc
Engine Type
2-Stroke
Skirt Coating
Moly Coated
Shipping weight
0.7 lb
Package size
3.7 × 3.7 × 3.7 in
Country of origin
Japan
Fitment3 models · Yamaha
Yamaha3 models
  • WR 2501988–1990
  • WR2501991–1997
  • YZ2501988–1998
Fitment comes from the distributor’s catalog. 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 #
PX-7080D
Prox part #
01.2314.D
Shipping

In stock at a distributor warehouse. Ships in 2–4 business days by ground.

Ground shipping is $14.95, free on orders over $150. Stock is re-checked with the warehouse before your card is charged.

Questions4 answers
Is it in stock?
Yes — the distributor shows it on a shelf at a regional warehouse 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?
The distributor lists it 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 Prox?
Yes. It ships new from the same distributors the big online stores buy from — Prox part #01.2314.D.

More Prox top end