Free shipping on most parts

Not sure it fits? Text us a photo and we'll confirm before you buy.

Most orders ship the same day

  • Same-day shipping on most orders

  • Fitment help: text a photo to 404-532-9833

  • Hassle-free returns

  • Wholesale accounts and dealer pricing

United Express Distribution  |  SKU: HEAD-0312

Rocker Arm Assembly for 200cc 63mm GY6 EFI B-Block Engine

Regular price $29.97


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 Carbureted
  • 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

The 63mm Engine Rocker Arms Camshaft Holder Assembly is designed specifically for 200cc GY6 EFI B-Block engines, offering a high-performance solution for riders looking to maintain or upgrade their engine’s valve system. Precision-engineered for durability and reliable performance, this rocker arm assembly ensures smooth valve movement, reduced friction, and efficient engine operation. With a 63mm bore size, it is perfectly suited for 170cc to 200cc GY6 B-Block engines commonly found in high-displacement scooters, mopeds, ATVs, and go-karts.

Compatible with B-Block engine variants from well-known brands such as TaoTao, Roketa, Jonway, Baja, SunL, and Coolster, this camshaft holder and rocker arm assembly offers a direct fit replacement without the need for modification. Whether you're rebuilding your engine or replacing worn-out components, the rocker arm assembly provides the strength, fitment, and performance needed for demanding rides. It’s an ideal upgrade for enthusiasts and mechanics who want to ensure peak engine reliability in larger GY6-powered vehicles.
  • Heavy-Duty Rocker Arm Assembly: This rocker arms camshaft holder assembly is designed specifically for 63mm 200cc GY6 EFI B-Block engines. Built from durable materials for high heat and stress resistance, it ensures consistent valve timing and top-end engine reliability for your scooter, moped, or ATV.
  • Fit for GY6 EFI B-Block Engines: Compatible with most 170cc to 200cc GY6 B-Block EFI engines, this rocker arm assembly offers a secure fit and seamless performance. Ideal for replacing worn or damaged camshaft holders on TaoTao, Jonway, Roketa, SunL, Coolster, Baja, and other Chinese-made go-karts and mopeds.
  • High-Performance EFI Systems: Engineered to meet the demands of fuel-injected (EFI) systems, this camshaft holder enhances engine timing, improves throttle response, and supports high-RPM performance. A must-have component for keeping your GY6 engine running smooth under intense riding conditions.
  • Reliable Valve Operation: With precision-machined rocker arms and a reinforced camshaft holder, this assembly guarantees consistent valve movement and superior durability. The robust construction helps maintain engine compression and withstands prolonged exposure to high temperatures and engine vibrations.
  • Easy Replacement: Whether you're restoring an ATV or upgrading your scooter’s engine, this plug-and-play rocker arm assembly installs easily with basic tools. Save time and money by avoiding complicated adjustments_just bolt it in and enjoy improved engine performance and longevity.
Known to Fits:
  • Fits 170cc-200cc GY6 B-Block Engines
Note: To ensure you are ordering the correct part use the detailed pictures & measurements to verify the exact match of your part.

Payment & Security

Payment methods

  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.