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United Express Distribution  |  SKU: CYLD-0171

Cylinder, Piston & Rings, Wrist pin, Cirq Clips Kit for 170cc GY6

Regular price $60.00


Pickup available at 2875 N Berkeley Lake Rd NW #4

Usually ready in 1 hour

Will it fit your machine?

Listed for

  • Cougar CLASH 200 EFI & FORCE 200 EFI
  • Tank 200 EFI

Not sure? Text or email a photo of your old part or your engine model number. We'll confirm it fits before you buy.

Delivery and Shipping

Ships from our Duluth, Georgia warehouse.

Most in-stock orders ship the same business day. UPS orders placed before 3:00 PM ET, USPS orders before 12:00 PM ET. After the cutoff, they go out the next business day.

Standard delivery runs 2 to 6 business days to most US addresses. US territories take 7 to 14. These are carrier estimates, not guarantees.

Free shipping on most parts, no minimum order. Oversized items (body kits, wheels, tires, batteries, and engines) are quoted to your address and shown at checkout before you pay.

We ship UPS and USPS, and email your tracking number as soon as the order leaves.

Questions? Call or text 404-532-9833. Full details on our Shipping page.

Description

Upgrade your GY6 170cc engine to a powerful 200cc setup with the 61mm Big Bore Cylinder Head and Piston Rings Kit, engineered for riders who demand more from their machines. Featuring a 61mm piston bore diameter and 57mm stud spacing, this high-performance kit ensures a precise fit and effortless installation for GY6 engines—especially the LF161QMK engine. Constructed from durable aluminum alloy, the cylinder body offers superior heat dissipation, reduced friction, and minimized leakage, resulting in smoother engine performance and extended longevity.

This complete engine rebuild kit includes everything you need to revitalize your ride: a cylinder, piston with rings, and three gaskets (head, cylinder, and timing adjustment opening). Whether you're upgrading for power, replacing worn parts, or boosting efficiency, this kit delivers exceptional value and convenience. Designed for motorcycle enthusiasts, it provides an easy, reliable solution to unlock enhanced torque, acceleration, and engine reliability. Perfect for GY6 170cc to 200cc dirt bikes, scooters, and ATVs, the Big Bore Kit ensures your ride is ready to perform at its best.
  • Perfect Fit: Engineered with a 61mm piston bore diameter and 57mm stud spacing, this Big Bore Kit ensures a precise OEM-like fit for GY6 170cc engines upgraded to 200cc engines. It's an ideal replacement for worn-out or damaged components, delivering flawless compatibility with Engine LF161QMK for optimal performance.
  • Wide Compatibility: Designed to work seamlessly with a wide range of GY6 4-stroke 170cc to 200cc engines, this kit is compatible with popular brands like TaoTao, Roketa, Jonway, Sunl, and other Chinese scooters, ATVs, and dirt bikes. It's the perfect choice for engine rebuilds or performance upgrades across multiple models.
  • Engine Performance: Enhance torque, horsepower, and fuel combustion with this high-performance 61mm Big Bore Kit. Designed to convert your GY6 170cc engine to 200cc, it gives you more throttle response and riding power, perfect for enthusiasts who demand more speed and reliability from their engine.
  • Durable Construction: Crafted from high-grade aluminum alloy, the cylinder and piston deliver exceptional strength, thermal efficiency, and wear resistance. This rugged construction reduces engine friction and leakage, allowing for extended engine life and reliable high-performance under extreme conditions.
  • Easy Installation: The kit includes all necessary components Cylinder, piston, rings, and 3 precision gaskets—making installation fast and hassle-free. Whether you're a DIY enthusiast or a professional mechanic, this plug-and-play rebuild kit simplifies the process and restores engine function in no time.
Details:
  • Piston Bore Diameter: 61mm
  • Stud Spacing: 57mm
  • Pin OD: 15mm 
Package Includes:
  • 1 - Cylinder
  • 1 - Piston & Rings
  • 3 - Gaskets (Head, Cylinder, Timing Adjustment Opening)
Known to Fit:
  • Engine LF161QMK
Note: Please check pictures for more details, and check your part number and our fitment before placing an order.

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