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Wiseco SK1046 Forged Snowmobile Piston Kit - Pro-Lite 2-Stroke Racing Piston

(1984-1991 Yamaha SR540 SRV; 1988-1991 Yamaha VK540; 1993-1998 Yamaha VK540 II; 1999-2005 Yamaha VK540 III)

Manufacturer

Picture for manufacturer Wiseco Pistons

Part Number

SK1046
9 reviews
Sale Price

$356.99

Estimated ship date Sunday, November 22

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Product Details

The Wiseco SK1046 is a forged snowmobile piston kit engineered for the extreme demands of snocross and cross-country racing. Built entirely in the USA, Wiseco designs and manufactures all of its own pistons and forge tooling in-house, maintaining complete control over every step of the production process — from raw aluminum bar stock to skirt-coated finished components.

Why Forged?

Unlike cast pistons, Wiseco's forged pistons are produced using a process that compresses and aligns the grain structure of aerospace-grade aluminum, resulting in dramatically improved mechanical properties. Cast pistons are typically brittle and prone to catastrophic failure when pushed beyond their yield strength. Forged pistons, by contrast, offer superior resistance to impact, fatigue, and the heat cycles associated with high-performance 2-stroke engines.

Key Features:

  • USA-forged construction — all pistons and tooling manufactured in-house in the United States
  • Aerospace-grade aluminum alloy — high-silicon, low-expansion material for superior strength and reduced weight
  • Optimized strength-to-weight ratio — each forging is designed to maximize performance without unnecessary mass
  • CNC-machined cam shape and profile — precision-machined for peak horsepower and extended service life
  • ArmorGlide skirt coating — reduces friction and wear for improved reliability under sustained racing conditions
  • In-house dyno development — Wiseco's own dynamometer testing drives continuous R&D in piston shape, coatings, and component design
  • Race-proven design — trusted by top snocross and cross-country race teams across the USA

The SK1046 piston kit includes the forged piston, a high-performance ring set, and an alloy wrist pin — everything needed for a complete top-end service. Whether rebuilding a stock engine or building a dedicated race machine, the Wiseco SK1046 delivers the strength, precision, and performance that serious snowmobile riders demand.

Products specifications

Fits

1984-1991 Yamaha SR540 SRV; 1988-1991 Yamaha VK540; 1993-1998 Yamaha VK540 II; 1999-2005 Yamaha VK540 III

Experience was quick and easy

very happy with this website, but now that received my order, I'm a little disappointed but nothing that can't be fixed. Still happy with the overall site.

I bought shocks for my Silverado. Very little product info given, I had to search part numbers on other websites to verify what shocks were for the front and what ones were for the rear. Also I would very much like to be able to ship to a different address (my wife's workplace), which I was unable to do during checkout. But your prices are the lowest.

thank you dont forget my suite number you are the best with good pric Thank you What i like from you Good price and when you said estimated at 26 thats mean 26 in august not like other one they said something and do something else Thank you ihope next time i will buy again from you

to early to know

Easy ordering

very simple easy to find the parts your looking for..

Ordered a couple of items. The first was a air intake kit. I had put in all my info for my truck and chose one from the list to order. Won't fit. Called to tell them and they asked if I had called manufacturer...ummm no. Said I needed to contact them to verify wrong part. They were closed, so went to website. The part they sent me was a universal fit- for cars, not trucks, but did find right model- $90 more. Called back autoplicity and was told I need to go through email to get an RA# to return wrong part- site says I can call. Been on hold for over 20 mins and still waiting. Hope the Nerf bars I ordered fit! Update- they called me back, got my RA#. Very pleased with how Nick handled things- it was what I expected the first time. He verified the NERF bars will fit and will be changing the website so the universal intake does not show on list for vehicles with larger air outlets. Changing my rating to show my satisfaction with how it was eventually handled.

I found the products to be very good, and the shipping to my address was excellent.Thank you for good service.

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