Search  for anything...

125cc Engine 4-Speed Pit Dirt Bike Engine Kit Manual Clutch Kick Start ATV Engine Motor 125cc Engine for Honda CRF50 CRF70 XR50 Z50 Motorcycle Air-Cooled 4 Stroke Engine With CDI System

  • Based on 2 reviews
Condition: New
Checking for the best price...
$249.99 Why this price?

Buy Now, Pay Later


As low as $41.67 / mo
  • – 6-month term
  • – No impact on credit to apply
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Apple Pay, and PayTomorrow. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Free shipping on this product

30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: In Stock.
Fulfilled by OCTSTR

Arrives Jul 18 – Jul 23
Order within 15 hours and 55 minutes
Available payment plans shown during checkout

Protection Plan Protect Your Purchase
Checking for protection plans...

Features

  • 125CC 4 STROKE ENGINE: This single cylinder air-cooling 4-stroke engine features 7500 rpm 375 rpm Max. Power, 8.0 Nm Max. Torque, 1500 rpm 100 rpm Idle Speed, which delivers excellent performance.
  • EASY TO START & CONTROL: The dirt bike engine with 4-speed manual clutch transmission provides you with high-precision gear shifting control. With kick starter lever and gear shift lever, it makes it easy to start the engine and easily switch the gears you want while driving.
  • HIGH PERFORMANCE: The motorcycle engine has a large fuel tank capacity(30.43oz) to sustain long hours of operation. This bike motor engine is designed with a high-performance carburetor(PZ22), which has the advantages of simple structure, lower cost, and easy maintenance, as well as reliability and durability.
  • CDI IGNITION SYSTEM: This 125cc pit bike engine adopts CDI ignition, which reduces the cost and improves the reliability of the ignition. Compatible with honda CRF50 / CRF70 / XR50 / XR70 / Z50 / Z50R / CT70 Mini Trail / Z50 / Minitrail monkey / XL70 ST70 / QA50 / QR50 / CL70 / SL70 / 70 Pass / ST 90K2 / ST 90K1 / CS 90 / SL 90 / ZB 50.
  • GOOD HEAT DISSIPATION: This 125cc engine adopts a heat dissipation structure, which can quickly dissipate heat and prevent the engine from burning out after prolonged use. Meanwhile, the air cooling system allows for faster cooling, reducing the failure rate.
  • COMPLETE ENGINE KITS: This complete engine kit comes with 125CC Engine + Kick Starter Lever + Gear Shift Lever + Carburetor + Intake Manifold + CDI + Sprocket Cover + Intake Gaskets + Some Screws for Assembly. Complete installation accessories and a simple structure allow you to complete the assembly in a very short time.

Manufacturer: ‎CUBELLIN


Brand: ‎CUBELLIN


Model: ‎Dirt Bike Engine


Package Dimensions: ‎19 x 14.6 x 14 inches


Item model number: ‎125CC 4 Stroke Engine


Exterior: ‎Polished


Manufacturer Part Number: ‎Motorcycle Engine for Honda


Date First Available: October 26, 2024


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Jul 18 – Jul 23

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Overall good buy
Good strong engine. Kicked over initially after like 12 kicks. Now that it’s broken in it takes like 2 kicks to start. Also it got here like 5 days early. I just wish they’d post a good install video because wiring is not my thing but I figured it out. And it doesn’t come with a new coil so you’d have to order one or use your existing one if it’s working. ... show more
Reviewed in the United States on June 9, 2025 by Victor Newman

  • All parts be with order
I am missing some parts. Not happy.
Reviewed in the United States on April 14, 2025 by Debra Pieschl

  • Bad motor
Packaging was pretty good. Could have used a diagram for the wiring but outside of that very intuitive. Unfortunately I received a bad motor. After installing I observed terrible sounds in the engine when shifting outside 1st gear.
Reviewed in the United States on February 18, 2025 by MRyan84

  • Solid little motor
I was impressed with the power from this 125cc. It fired up on the third kick. Shifts through all 4 gears smoothly. For the price, it's an unbeatable value for a pit bike build.
Reviewed in the United States on March 18, 2026 by Maria Taktikos

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...