Wossner K8930DA-2 Piston Kit - Polaris RZR XP 1000 Ranger 900/1000 General 1000

Wossner K8930DA-2 Pro Series Forged 4-Stroke Piston Kit - Standard Size A

Push the limits of your Polaris UTV with the Wossner K8930DA-2 Pro Series Piston Kit. Engineered for the high-demand environments of the RZR XP 1000, Ranger XP 1000, and General 1000, this Standard Size A forged kit is the professional choice for performance and longevity. At Moto-House MX, we understand that whether you are navigating technical trails or hauling heavy loads, your engine requires aerospace-grade components to stay in the lead.

Forged from a high-performance aluminum alloy, the Pro Series piston features a double-bridged design for maximum structural integrity under extreme cylinder pressures. Advanced radial boss machining and enhanced oiling slots provide superior wrist pin lubrication, a critical factor for the high-output Polaris twin-cylinder engines. With a 12.0:1 compression ratio and a permanent skirt coating to reduce friction, this kit ensures a quieter running engine and improved break-in performance for your next rebuild.

Top Features: Wossner K8930DA-2 Piston Kit

• Standard Size A (92.94mm Piston): Precision-engineered for the standard 93.00mm bore to maintain factory clearances and peak thermal efficiency.
• Pro Series Forged Design: Features a double-bridged forging for unmatched strength-to-weight ratio in high-performance UTV applications.
• Enhanced Lubrication: Specialized radial boss machining and annular grooves ensure constant oil flow to the wrist pin.
• Low-Friction Skirt Coating: Reduces piston rock and mechanical noise while protecting cylinder walls during initial startup and high-load operation.
• Optimized Oil Control: Precision ring land treatment improves ring seal, reducing blow-by and maintaining consistent power.
• Complete Kit: Includes forged piston, high-performance rings, wrist pin, and pin locks.

Expert Pro-Tip: The Polaris 900 and 1000 series engines are precision-tuned from the factory. When installing the K8930DA-2, ensure your cylinder bores are deglazed and within factory service limits. Because these engines often operate in dusty or muddy conditions, we strongly recommend a fresh air filter and a complete oil service with high-quality synthetic lubricants to protect your new forged investment.

Fitment Guide

Model Group	Year Range	Key Models
Polaris RZR 1000	2014-2025	XP 1000, Premium, Sport, Ultimate, High Lifter
Polaris Ranger 1000	2017-2025	XP 1000, NorthStar, Premium, Trail Boss
Polaris General 1000	2016-2023	EPS, Deluxe, Premium, Sport
Polaris RZR / Ranger 900	2013-2024	900 XP, RZR 900, Trail S 900

Frequently Asked Questions

Q: Is this a Standard Size piston?
A: Yes, this is the 92.94mm Piston designed for the standard 93.00mm bore. It is the correct choice for cylinders that do not require boring or sleeving.

Q: Does this kit include the top-end gaskets?
A: No, this kit includes the piston, rings, pin, and locks. A top-end gasket kit is required for a leak-free installation and must be purchased separately.

Q: What makes the "Pro Series" different?
A: The Wossner Pro Series typically utilizes more advanced forging techniques, such as the double-bridged design, to provide extra reinforcement in high-stress areas of the piston crown and skirt.

Recommended Pairings

• Complete Top End Gasket Set: Ensure a professional seal for your Polaris twin-cylinder rebuild.
• High-Flow Air Filter: Maximize the performance gains of your new forged piston kit.

Restore your Polaris performance today. Buy now at Moto-House MX!

Moto-House MX – Choice of Champions – is located in Clermont/Montverde, FL. The Best Motocross/UTV & ATV Shop in Central Florida. Stop by our local store in Montverde, FL or enjoy lightning-fast shipping across the USA.