Select Your Ride

1
2
3

Wiseco Piston Kit Yamaha YFM350 Grizzly 2007-2012 40123M08350

Part Number: 09103940
WISECO
(No reviews yet) Write a Review
SKU:
09103940
MPN:
40123M08350
Condition:
New
Availability:
Ships Same Business Day
Weight:
1.05 LBS
On Sale
MSRP: $224.95
Now: $191.00
Was: $224.95
— You save $33.95
Prop 65 Warning Prop 65 Warning cancer & reproductive harm Price Match Call for more info on price match does not include 3rd party ads
Frequently bought together:

Description

If you're running a Yamaha YFM350 Grizzly and want measurable gains in power delivery and engine longevity, a quality piston kit is one of the smartest upgrades you can make. The Wiseco Piston Kit delivers precision-engineered internals that improve combustion efficiency and horsepower while maintaining the reliability your machine demands. This is a direct bolt-in solution for 2007-2012 models—no guesswork, no fitment issues.

  • Fits: YFM350 Grizzly (2007-2012)
  • MPN: 40123M08350
  • Material: High-strength aluminum
  • CNC-precision engineered
  • Increased horsepower
  • Enhanced torque output
  • Minimal installation modifications
  • Thoroughly tested durability
  • Gasket kit: Sold separately
View AllClose

Specs

COMPRESSION RATIO IMPERIAL:
12.0:1
DISPLACEMENT:
349 CC
PISTON MATERIAL:
FORGED
RIDING STYLE:
STREET
BORE SIZE METRIC:
83.50 MM
STROKE LENGTH METRIC:
64.50 MM
ENGINE TYPE:
4-STROKE
PISTON MATERIAL:
ALUMINUM ALLOY
PRODUCT NAME:
PISTON
RIDING STYLE:
ATV
UNITS:
EACH
BORE - OVERSIZE:
+0,50 MM
BORE - OVERSIZE METRIC:
+0.50 MM
View AllClose

0 Reviews

View AllClose

Fitment

Fitment for Wiseco Piston Kit Yamaha YFM350 Grizzly 2007-2012 40123M08350

View AllClose

FREE Shipping on orders of $99 or more!


Commercial Accounts

We offer tax-free commercial accounts, providing businesses with significant savings and streamlined benefits.



Easy 30-Day Returns

We proudly offer 30-day easy returns, ensuring a hassle-free and convenient shopping experience for our customers.


You May Also Like

Big Power, Nice Sound!

Picked up a Pro Circuit pipe and silencer for my YZ125 it’s a game changer. The power feels way better and the sound is awesome.

Tyler D. - 06/12

Perfect Fit

First time ordering here and dang y’all knocked it outta the park! The wheels fit my Ranger UTV perfect, and I’ll definitely be back for more 5 stars all day!

Sarah L. - 08/24

Fast Shipping!!

Ordered on a Monday, and it was on my doorstep by Wednesday! Super impressed with how fast the shipping was.

Jason P. - 09/13

Helps keep cool, works great!

Bought the dual pass Allstar radiator for my build, and it’s been solid. Keeps the engine running cool even on the hottest days no complaints here!

Jake M. - 05/21

SECURE & SAFE PAYMENT

EASY RETURNS

FAST DELIVERY

AUTHORIZED DEALER