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- Lifan 140cc 4 Stroke Manual Clutch Engine Mot...
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Item #:
221584292
Lifan 140cc 4 Stroke Manual Clutch Engine Motor Complete Kit Single Cylinder Kick Start with Carburetor Wire for Pit Dirt Bike CRF50 XR50 Z50R CT70
Item #:
221584292
USD 842
Price Details
Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )
*All items will import from US
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Order now and get it around Monday, August 17
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Upgrade your pit dirt bike with the Lifan 140cc oil-cooled manual clutch engine, engineered for riders seeking higher horsepower, improved thermal control, and long-term durability.
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What Stands Out
High Performance
The Lifan 140cc engine offers superior power with its four-stroke design, ensuring optimal performance for both trail riding and racing environments.
Complete Kit
This complete motor kit includes everything needed for installation, simplifying the upgrade process for users looking to replace their bike's engine efficiently.
Versatile Compatibility
Designed to fit various models like CRF50 and XR50, this engine allows riders to enhance their dirt bikes with reliability and ease, catering to a broad range of enthusiasts.
Product Details
- High Performance 140cc Power Output Upgraded single-cylinder horizontal 4-stroke engine delivers up to 8KW @ 7500RPM and 9.5N·m torque @ 5000RPM, providing stronger acceleration and higher top-end power than standard 125cc motors.
- Oil-Cooled Design for Stable Temperature Control Integrated oil cooling system improves heat dissipation, reduces thermal stress, and maintains consistent performance during extended riding or heavy load conditions.
- Manual Clutch with N1234 4-Speed Transmission Features a true manual wet clutch and 4-speed gearbox (Neutral + 1-2-3-4) for precise throttle control, smoother gear engagement, and improved rider responsiveness.
- Complete Ready-to-Install Engine Package Includes carburetor, air filter, wiring harness, kill switch, oil cooler, exhaust muffler, 428 chain, 41T sprocket, clutch lever & cable, throttle grips with cable, engine skid plate, intake manifold, kick starter and shifter — reduces installation time and extra parts cost.
- Wide Vehicle Compatibility Designed for common pit bike frames including CRF50 / CRF70 / XR50 / XR70 / Z50 / Z50R / CT70 Mini Trail / Z50 / Minitrail Monkey / XL70 ST70 / QA50 / QR50 / CL70 / SL70 / CT90/CT110/ CS 90 / SL 90 / ZB 50 /, SSR, Apollo, Coolster, TaoTao DB14 DB17 and similar models. Mounting bolt spacing approx. 154mm (6 inch) — please verify before purchase.
| Item Weight | 30 lbs (13.61 kg) |
Product Technical Details
| Manufacturer | YC Yier |
| Brand | YC Yier |
| Model | Engine |
| Item model number | TD217 |
| Exterior | Machined |
| Manufacturer Part Number | YC-TD217-1 |
What's in the box
Engine
Who Should Buy?
-
Beginner Riders
Perfect for novice riders seeking a reliable engine for learning fundamentals without overwhelming power.
-
Dirt Bike Enthusiasts
Ideal for dirt bike enthusiasts wanting a performance upgrade to enhance their off-road riding experience.
-
Customization Projects
Suitable for hobbyists looking to customize or restore older pit bikes with a quality engine replacement.
-
Experienced Racers
May not meet performance requirements for seasoned racers needing higher power output and advanced technology.
Product Description
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
What is the power output of the Lifan 140cc engine?
Answer: The engine delivers up to 8KW of power at 7500 RPM. -
Question:
What components are included in the engine package?
Answer: The package includes the engine, carburetor, air filter, wiring harness, exhaust, and more. -
Question:
Is the engine suitable for various pit dirt bike builds?
Answer: Yes, it's designed for easy frame compatibility and is ideal for restoration and upgrades.
YC Yier Engine Kits TD217 Editorial Review
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23 July 2026 · via Trustpilot
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- Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
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USD 842
Order now and get it around Monday, August 17
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
QTY:
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Features & Benefits
- Engine produces up to 8KW peak power and 9.5N·m of torque for superior performance.
- Oil-cooled design ensures stable operating temperatures for extended use.
- Manual clutch and 4-speed transmission allow precise throttle control and smooth gear shifts.
- Complete engine package includes all necessary components for easy installation.
- Ideal for pit dirt bike restoration and performance upgrades.
- Compact layout provides excellent frame compatibility and balance.
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