Skip to content
Clear product details Fitment guidance Contact support
PartsTrust Direct Know what arrives before you order.

125CC ATV Motor Engine 4-Stroke Semi-Auto Engine Motor 4-Speed Motorcycle Engine with Reverse Function, Electric Starter Go Kart Engine for Motorcycles, ATVs, Go-Karts | Package and Ordering Details

$144.00

SKU: D-B0FFN44B4X Category:

Confirm quantity, package contents, selected variation, current offer details, and store terms before placing the order.

About this item

  • 【Durable and Sturdy】: The engine is equipped with premium aluminum and cast steel, ensuring superior performance and a longer lifespan and adapting to complex environments and conditions.
  • 【Strong Power】: This ATV motor engine boasts a robust 7.64HP horsepower, a displacement of 125cc, and a max rotating speed of 7500RPM, which provides you with strong power and ensures that your drive will be very smooth and powerful.
  • 【Effective Cooling System】: By adopting an air cooling system, the temperature of the engine can be quickly reduced, effectively preventing overheating and ensuring smooth and long-lasting driving.
  • 【Adjustable Speed】: Its 4-speed manual transmission provides you with high-precision gear shifting control, so it allows you to easily adapt to various changes. It makes your driving experience more exciting under different road conditions.
  • 【Easy to Operate】: The CDI ignition system (not included) leads to higher energy and ignition efficiency. So you can start the motor engine quickly and safely.
  • 【Easy to Install】: Our ATV motor engine is pre-installed and you only need to spend a little time and effort to complete the remaining parts, enjoying a sense of achievement!

Before you order
  • Confirm the part number, position, dimensions, and connector details shown on this page.
  • Compare the listing with the part currently installed on your vehicle.

Description

Confirm the selected variation, quantity, package contents, current offer, and store terms before placing an order.

Brand: BQDRTMZ
  • Item Weight

    :

    50.16 Pounds
  • Item model number

    :

    ACYCZYQ3679-MJJ626
  • Date First Available

    :

    June 26, 2025
  • Manufacturer

    :

    YENURIOMJJ
  • ASIN

    :

    B0FFN44B4X
  • Country of Origin

    :

    China
  • Best Sellers Rank: #654,595 in Automotive (See Top 100 in Automotive)
    • #330 in Powersports Engine Kits

Specification

Engine Type: Single Cylinder, 4 Stroke, Horizontal, Two-stage Transmission

Other Features: 3 Forward Gears and 1 Reverse

Material: Aluminium, Cast Steel

Engine Cooling Type: Air Cooling

Ignition System: CDI (Not Included)

Start Mode: Kick-starter; Electric

Clutch Type: Manual Wet Multi-Disc

Transmission: 4-speed, Semi-Auto

Displacement: 125CC

Minimum No-load Stable Speed: 1400 (1 ± 10%) R / min

Compression Ratio: 8.7:1

Bore Stroke: 54x54mm/2.12×2.12inch

Max Power: 5.8Kw/h

Max Torque: 8.0N-m

Max Rotating Speed: 7500rpm

Horsepower: 7.64HP

Air Inlet and Exhaust Valve Clearance: 0.05 ~ 0.07 mm (Cold State)

Min Fuel Consumption: ≤367g/kW.h

Spark Plug: A7TC

Carburetor Type: PZ19 (Not Included)

Min Stable Idle Speed: 1500r/min±150r/min

Primary Reduction Ratio: 3.722

Transmission Ratio of Each Gear: First Gear: 3.272; Second Gear: 1.938; Third Gear: 1.350; Fourth Gear: 1.043

Lubricant Capacity: 900ml/0.23 Gallons

Lubricant Type: SL10W/40 (Not Included)

Crankshaft Diameter: 1.5cm/0.59inch

Crankshaft Length: 0.4cm/0.15inch

Gasoline Type: ≥ 92 #

Gross Weight: 19.45kg/42.87lbs

Net Weight: 18.15kg/40.01lbs

Product Size: 45x30x25cm/17.71×11.81×9.84inch

Package Size: 51x39x33.5cm/20.07×15.35×13.18inch


Package Included

1xATV Motor Engine

1xGearshift Lever

1xChain Cover

1xIntake Manifold

2xIntake Gaskets

All Accessories for Assembly


Application

This ATV motor engine can be widely used in motorcycles, ATVs, go-karts, tricycles, etc, as long as the crankshaft matches.


Notes

Professional installation is highly recommended.

Product facts

Specifications

Canonical product
MP-US-B0FFN44B4X
Source product ID
B0FFN44B4X
Category
Motorcycle & Atv / Parts / Engine / Rebuild Kits
Available images
7

No structured vehicle fitment data is available. Compare the listing with the vehicle and existing part before ordering.

Package contents, delivery, returns, inventory, and buying trust

Buying guidance

Quick decision

Check exactly what this rebuild kits listing includes before checkout.

Package contents

  • Use the photos and product description to confirm quantity, sides, hardware, and included accessories.
  • Review the current shipping and returns pages before ordering.

Before you buy

  • Compare the listing title, photos, package contents, and specifications with the part being replaced.
  • Confirm vehicle compatibility and installation requirements before ordering.

Delivery and returns

  • Use the current cart, checkout, shipping, and returns pages for store-specific terms.
  • Keep the selected variation and order details available for support.

Customer feedback

Ratings and written reviews

Reviews below were submitted through this store.

Reviews

There are no reviews yet.

Be the first to review “125CC ATV Motor Engine 4-Stroke Semi-Auto Engine Motor 4-Speed Motorcycle Engine with Reverse Function, Electric Starter Go Kart Engine for Motorcycles, ATVs, Go-Karts | Package and Ordering Details”

Your email address will not be published. Required fields are marked *