In stock

Wiseco Piston Kit — 77.00 mm — Yamaha YZ250F/FX | WR250F

Wiseco · #0910-5076 · Top End / Engine

R&D developed to provide dyno-proven power gains
Asymmetric skirt design for improved wear and even loading on major thrust skirt
Precision fit ring; custom-lapped compression ring for improved power
100% billet machined for superior strength-to-weight ratio and optimized fit
High compression (14:1 for 450cc, 14.5:1 for 250cc) for maximum torque and throttle response

$369.95

In stock. Ships in 2–4 business days · free shipping over $150.

Questions? Call the shop: 801-361-3010

Real shop · real humans · 1231 N 1300 W Ste A, Centerville, UT 84014

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Description & features12 features

Kit Includes:

• 1x Piston

• 1x Ring Set #7700MCZ

• 1x Wrist Pin #S686U

• 2x Circlips #W6883

R&D developed to provide dyno-proven power gains
Asymmetric skirt design for improved wear and even loading on major thrust skirt
Precision fit ring; custom-lapped compression ring for improved power
100% billet machined for superior strength-to-weight ratio and optimized fit
High compression (14:1 for 450cc, 14.5:1 for 250cc) for maximum torque and throttle response
Dome design improves flame travel to maximize air/ fuel burn efficiency
DLC-coated piston pin reduces friction and improves scuff resistance
Enhanced pin oiling for improved lubrication and reduced friction
Pressure seal groove reduces ring lifting and power loss
ArmorGlide® skirt coating reduces friction for quieter operation, improved scuff resistance
Pistons include rings, pin, and circlips
Made in the USA

Specifications14 specs

Compression Ratio: 14.5:1
Displacement: 250 cc
Riding Style: Off-Road
Bore Size: 77.00 mm
Bore - Oversize: Standard
Skirt Coating: ArmorGlide®
Units: Kit
Engine Type: 4-Stroke
Model: Racer Elite Series
Piston Diameter: 76.96 mm
Piston Material: Forged 2618 Aluminum
Shipping weight: 0.85 lb
Package size: 4.7 × 4.6 × 4.2 in
Country of origin: USA

Fitment3 models · Yamaha

Yamaha3 models

WR250F2015–2017
YZ250F2014–2015
YZ250FX2015–2016

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 #: 0910-5076
Wiseco part #: RE812M07700

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 #RE812M07700.