0454934, 40122M04900, 810926, NA-50014T, 0454934, 0453533, 0453430, 0453429, 0453431, 0453432, 0453418, 0453427, 0453438, 0453578, 0453613, 0453616, 0453553, 0450717, 0453510, 0453520, 0453034, 0452402,Transform your 07+ Polaris Sportsman 90 or Outlaw 90 with this 49mm Big Bore Kit! Features new cylinder (honed to match Wiseco forged piston), gasket kit (Vertex/Namura/Moose), & head stud kit. Ready to install & use pump/race gas. Unleash massive power!

07+ Polaris Sportsman Outlaw 90 Big Bore Kit 49mm Complete Top End

Unleash Massive Power: Transform Your Polaris 90 into a Big Bore Beast!

Ready to push your 2007-and-newer Polaris Sportsman 90 or Outlaw 90 to its full potential? This 49mm Complete Top End Rebuild Kit is the ultimate upgrade to inject your ATV with an incredible surge of power and torque! Forget stock limitations; our kit provides a significant displacement increase, ensuring your junior rider gets the aggressive throttle response and acceleration needed to dominate. This isn’t just a rebuild; it’s a complete transformation designed for riders who demand stronger performance and unmatched reliability. Experience the thrill of a big bore engine that pulls harder, turning your Polaris 90 into a true powerhouse ready to conquer any trail or track!

Premium Components: Nikasil Cylinder, Forged Piston & High-Quality Gaskets!

This comprehensive big bore kit features only the highest-quality components to ensure extreme durability and peak performance. At its core is a NEW 49mm aftermarket big bore cylinder, precisely bored and diamond honed in-house to perfectly match the included piston for optimal fitment and compression. It comes paired with a premium Wiseco 49mm Big Bore Forged Piston Kit, complete with a durable wrist pin and circlips for unparalleled strength and reliability. The kit also includes a high-quality Vertex, Namura, or Moose Racing Top End Gasket Kit* you will always receive a trusted brand ensuring excellent sealing. A robust Cylinder Head Stud Kit is also part of this package, providing enhanced head clamping force for increased reliability under boosted power. All components are new in their original packaging and covered by manufacturer warranty for your peace of mind!

• NEW 49mm aftermarket big bore cylinder (bored & diamond honed in-house).
• Wiseco 49mm Big Bore Forged Piston Kit (with wrist pin & circlips).
• High-quality Vertex, Namura, or Moose Racing Top End Gasket Kit*
• Includes robust Cylinder Head Stud Kit.
• Piston uses pump or race gas for versatile fueling.
• Everything is new in original packaging & covered by manufacturer warranty.

Seamless Upgrade: Fits ALL 2007+ Polaris Sportsman & Outlaw 90 ATVs!

This 49mm Big Bore Cylinder Kit is engineered for perfect, bolt-on compatibility with ALL 2007+ Polaris Sportsman and Outlaw 90 ATVs, ensuring a straightforward and hassle-free upgrade. The cylinder is pre-matched to the included piston, meaning no additional machining is required simply install and ride! The versatile forged piston is designed to run efficiently on either pump or race gas, offering flexibility to suit your performance needs and budget. With this complete, high-quality kit, you’ll benefit from dramatically improved compression, enhanced durability, and the significant power increase that only a meticulously engineered big bore kit can deliver. Transform your Polaris 90 into the beast it was meant to be with confidence and ease!

• Works on ALL 2007+ Polaris Sportsman 90 and Outlaw 90 ATVs.
• Cylinder comes pre-bored and honed to match piston no machining required.
• Piston compatible with both pump or race gas.
• Provides a complete top end rebuild solution.

Frequently Asked Questions (FAQ)

• Q: What are the main components included in this big bore kit?

  A: This kit includes a new 49mm aftermarket big bore cylinder (pre-honed), a Wiseco 49mm Big Bore Forged Piston Kit (with wrist pin & circlips), a high-quality top end gasket kit (Vertex, Namura, or Moose Racing), and a Cylinder Head Stud Kit.

• Q: Does this kit require any machining for installation?

  A: No, this kit is designed for a direct bolt-on installation. The cylinder is bored and diamond honed in-house to precisely match the included Wiseco piston, so no additional machining is required on your part.

• Q: What type of fuel should I use with the included piston?

  A: The Wiseco forged piston included in this kit is versatile and can be used with either pump gas or race gas, offering flexibility based on your performance tuning and preferences.

Why Choose ? Your Go-To for Polaris Performance Parts!

At , our promise is unwavering: The Best Parts. The Best Performance. The Best Price. This Polaris Sportsman/Outlaw 90 Big Bore Cylinder Kit exemplifies our dedication to providing high-quality, essential components that guarantee your machine’s longevity and peak performance. We share your passion for adrenaline-fueled riding and are committed to ensuring your Polaris runs flawlessly, whether you’re racing or tearing up the trails. Trust to deliver the parts you need to transform your ATV into the ultimate off-road weapon, every single time.

Upgrade your Polaris 90 today & leave them in the dust!

– The Best Parts. The Best Performance. The Best Price.

BRAPPPPPPPPPP!

LLC

0454934, 40122M04900, 810926, NA-50014T, 0454934, 0453533, 0453430, 0453429, 0453431, 0453432, 0453418, 0453427, 0453438, 0453578, 0453613, 0453616, 0453553, 0450717, 0453510, 0453520, 0453034, 0452402,Transform your 07+ Polaris Sportsman 90 or Outlaw 90 with this 49mm Big Bore Kit! Features new cylinder (honed to match Wiseco forged piston), gasket kit (Vertex/Namura/Moose), & head stud kit. Ready to install & use pump/race gas. Unleash massive power!