Select Your Ride

1
2
3

Wiseco Piston Kit 54mm for Suzuki RM125 1989-1999 641M05400

Part Number: 641M05400
WISECO
(No reviews yet) Write a Review
SKU:
641M05400
MPN:
641M05400
Condition:
New
Availability:
Ships Same Business Day
Weight:
0.40 LBS
$162.95

Ships from Manufacture | Call to Order (231) 767-5055

Prop 65 Warning Prop 65 Warning cancer & reproductive harm Price Match Call for more info on price match does not include 3rd party ads

Description

If you're rebuilding a RM125 or chasing more responsive power delivery, a quality piston kit is non-negotiable. Wiseco's 54mm design delivers the precision fit and lightweight construction that separates a stock rebuild from a genuinely competitive machine. Whether you're a trail rider or competing on weekends, this kit gives you the durability and efficiency gains that matter when the engine is screaming at 12,000 RPM.

  • Bore diameter: 54mm
  • High-silicon aluminum alloy
  • Computer-optimized skirt design
  • Reduced friction profile
  • Lightweight construction
  • Fits Suzuki RM125 1989–1999
  • Bolt-on installation
  • Enhanced throttle response
  • Increased horsepower output
  • Extended engine longevity
  • MPN: 641M05400
View AllClose

Specs

DISPLACEMENT:
123 CC
PISTON MATERIAL:
FORGED
RIDING STYLE:
OFF-ROAD
STROKE LENGTH METRIC:
54.00 MM
BORE SIZE METRIC:
54.00 MM
STROKE LENGTH:
54,00 MM
BORE - OVERSIZE:
STANDARD
BORE - OVERSIZE METRIC:
STANDARD
ENGINE TYPE:
2-STROKE
PISTON MATERIAL:
ALUMINUM ALLOY
PRODUCT NAME:
PISTON
UNITS:
EACH
View AllClose

0 Reviews

View AllClose

Fitment

Fitment for Wiseco Piston Kit 54mm for Suzuki RM125 1989-1999 641M05400

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