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4-Stroke Engine Motor Kit, 140CC Dirt Pit Bike Engine Motor Horizontal Motorcycle Dirt Bike Engine w/ 4 Speed Manual Clutch Carburetor for CRF50 CRF70 XR50 XR70 Z50 Z50R Z50 XL70 ST70

  • Based on 2 reviews
Condition: New
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$301.00 Why this price?

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Availability: In Stock.
Fulfilled by Feurahen

Arrives Aug 18 – Aug 22
Order within 3 hours and 28 minutes
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Size: 140cc 4-Stroke


Features

  • Premium Material: This engine kit is made of high-quality aluminium alloy and cast steel, which is strong and durable.
  • Good Performanc: The engine kit boasting a maximum power of 8kw (7500375) and maximum torque of 9.5N.M(5000250) delivers an impressive surge of strength and control to the vehicle.
  • Performance Features: Enjoy a powerful ride with the 140cc bike engine that enhances overall vehicle control and responsiveness, perfect for racing enthusiasts and off-road adventures.
  • Ersatile Compatibility: This 140cc pit bike engine is specifically designed to fit a variety of models including fit for CRF50, CRF70, XR50, and more, making it the ideal choice for anyone looking to upgrade their mini trail bikes.
  • Simple Installation: The product is manufactured in accordance with the original factory parameters and matches your car greatly. And the complete accessories allow you to complete installation and start using it in a short period of time.

Description

About Us Mahugde is committed to providing customers with high-quality products. We always uphold the principles of honest business practices, quality first, and fast delivery to create a reliable and exquisite selection for you! Explore more at Mahugde — Make life beautiful. Will the engine fit my motorcycle? Compatible Models: For HONDA CRF50 / CRF70 / XR50 / XR70 / Z50 / Z50R / CT70 Mini Trail / Z50 / Minitrail Monkey / XL70 ST70 / QA50 / QR50 / CL70 / SL70 / 70 Passport / ST 90K2 / ST 90K1 / CS 90 / SL 90 / ZB 50 How many cc's does the engine fit? The 140CC Dirt Pit Bike Engine Motor has a displacement of 140cc, This engine is designed for pit bikes and mini trail bikes, and is compatible with models like CRF50, CRF70, XR50, XR70, Z50, and similar frames. Is it a 4 speed motor? The 140CC Dirt Pit Bike Engine Motor features a 4-speed manual clutch transmission (1N234 gear configuration). What kind of oil do I need for the engine? The engine is added separately with 4-stroke oil, and the passenger engine has to be filled with oil, which will be poured out when it is shipped to be shipped. 140CC 4-Stroke Engine 200CC 4 Stroke Engine 125CC 4 Stroke Engine 110CC 4 Speed Engine

Manufacturer: ‎Mahugde


Brand: ‎Mahugde


Model: ‎pit bike engine


Item model number: ‎bike motor kit


Exterior: ‎1


Manufacturer Part Number: ‎bike engine kit


Date First Available: April 7, 2026


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Aug 18 – Aug 22

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.

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Leasing options through Acima may also be available during checkout.

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Top Amazon Reviews


  • Motor works fine, box was a different story.
Size: 140cc 4-Stroke
I only used the engine, not the carb or cdi or anything that came with the motor, but it fired on first or second kick. Came with a 428 sprocket so I had to switch that out because my chain and rear sprocket were 420. Only complaint I have was the box it came in and the Styrofoam inside was beaten within an inch of its life. The shipping oil you're supposed to replace before starting had all leaked out and soaked the box. Maybe a "fragile" or "this side up" sticker would help. delivery people were probably just upset that it was so heavy. No issues with the motor itself though. ... show more
Reviewed in the United States on June 20, 2026 by phil reimer

  • Perfect for pit bikes.
Size: 140cc 4-Stroke
Overall, I am pleased with the performance of this engine. I have been using it for six months without any major issues. It is worth noting, however, that operating at high RPMs requires more frequent oil changes. Additionally, the kickstand assembly appears to be a potential weak point that may require attention. Despite these minor maintenance considerations, it remains a solid and reliable engine for the price. ... show more
Reviewed in the United States on July 3, 2026 by sunny

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