Dirt Bikes
Motorcycles/ Mopeds
Go Karts
Riding Gear
Follow us Follow Pinterest Follow Instagram
   Advanced Search
Parts Request | MSO Title Request | Check Order Status | Special Deals   
  Home » Parts » Engine Parts » 308-999003
Autumn Sale

Today's Deals

Fully Assembled and Tested Bikes ->

ATVs ->

Dirt Bikes ->

Mopeds / Scooters ->

Motorcycles ->

Go Karts ->

California Legal Bikes ->

Engine Assembly / Parts ->

Riding Gear ->

Hoverboard / Balance Scooter ->

Motorcycle Fairings ->

Motorcycle Headlights ->
fully assembled and pdi

110cc 4-stroke Engine w/Auto Transmission Electric Start for 50cc-110cc ATVs Go Karts Boulder B1, 3050C, ATA-110D, Free Shipping

5 of 5 Stars! 46 ratings

Model Number:
List Price:
Online Price:
Buy With Cashier's Check Or Money Order:
$355.15 (Save $14.80)
  Free Shipping
Availability : In Stock
Available options:
Secured Insurance Service:What's this?

Write a review
  • Product Description
    • 110cc ATVs Go Karts 4-stroke Engine Motor 110cc ATVs Go Karts 4-stroke Engine Motor 110cc ATVs Go Karts 4-stroke Engine Motor
      110cc ATVs Go Karts 4-stroke Engine Motor 110cc ATVs Go Karts 4-stroke Engine Motor 110cc ATVs Go Karts 4-stroke Engine Motor
      110cc ATVs Go Karts 4-stroke Engine Motor 110cc ATVs Go Karts 4-stroke Engine Motor

    Key Features

    • Brand New High Quality Engine, 4 Stroke, Automatic Transmission, electric start. It fits most China made 50cc, 70cc, 90cc, 110cc ATVs and Go Karts.
    • Fit Vehicles:
      TaoTao Boulder B1
      TaoTao ATA-110D
      Coolster ATV-3050C
      UP Moto CRT110-2
    • Compatible Models: Such as Blade, Kinroad, Roketa, KPX, SUNL, Aimex, Alpha sports, BMS, BMX, Cool Sports, Baja, JCL, Taotao, Peace, JM Star, Jonway, Kazuma, KMD, Kymco, Lance, Linhai, NST, Redcat, Roketa, Tank, X-Treme, Yamati, Coolster, Terminator, Lynx etc.
    • Compatible Vehicles: Engine automatic 110cc fits most Chinese made ATV Go Kart 50cc 70cc 90cc 110cc since the mounting holes are same, please do not buy if your engine with starter bottom mounted since the mounting holes are not same.It is forward only. It is good idea if you like to either replace your old engine or upgrade your ATV or Go kart to be faster or more powerful.
    • Aluminum Cylinder Head and Iron Cylinder Body: Improves the heat dissipation capability, cuts the weight and increases the torque of the engine.
    • Crank Shaft: The engine is low speed with high torque and has large diameter bearings for crankshaft connecting rod, increasing the reliability of the bearings.
    • Air-cooled Engine: There are metal fins covering the outside of the cylinders and the heat generated by the engine is released directly into the air when the cooling fan blows air over fins. It has the advantages of simple structure, light weight, wide adaptability to climate change, rapid start up and no need of radiator.
    • High-flow Oil Pump: Reduces the wear of friction pairs and prolongs the engine life.
    • Lubricating Oil Strainer: Helps removing solid contamination from lubricating oil, largely reducing the wear of friction pairs and prolonging the engine service life.
    • The engine is equipped with universal magneto interface plugs.For Coolster engines you can use 274-999003 wirng harness, for Taotao engines you can match with 274-999004
    • PLEASE NOTE: Please measure the physical size to be sure you get the correct one.


      Engine Model 308-999003 Ignition Method CDI
      Engine Type Single Cylinder, 4-Stroke, 2-Valve Lubrication Pressure/splash
      Cooling System Air Cooled Fuel Supply Carburetor Atomization
      Horsepower 6.71HP/8000Rpm (5.0KW/8000Rpm) Starter Electric Starter
      Max. Torque 6.9N.m/6500rpm Transmission Auto Transmission
      Min. Stable Idle Speed 1500±150r/min Clutch Automatic Multi-plate Wet Clutch
      Min. Fuel Consumption 9.65oz/HP.h (367g/Kw.h) Cylinder Diameter 2.06" (52.4mm)
      Carburetor Model PZ19 Piston Stroke 1.95" (49.5mm)
      Carburetor Type Plunger type carburetor Bore & Stroke 2.06" x 1.95" (52.4mm x 49.5mm)
      Spark Plug Model A7TC Cylinder Working Volume 0.02 Gallon (107ml)
      Fuel No. >= 87# Compression Ratio 9.0:1
      Lubrication Model SF15W/40-SE Ignition Type CFW
      Lubrication Capacity 0.20 Gallon (900ml)


      The quality engine system production complies with the requirements of ISO9001:2000. All the engines have passed the 200-hour enhanced durability bench test and the 20000 km road test. The engine has the similar performance, facility and reliability as many brand engines, such as Honda, Yamaha, Kawasaki and so on. It also obtained the DOC authorization. Please do not compare our engines to other low quality engines, we only sell high quality engines.

      All engines have the identification, gears and oil labels. You can purchase with confidence.

      This engine assembly comes with Intake Pipe, Drive Sprocket, Sprocket cover & Spark Plug, but doesn't come with Carburetor, Battery, CDI, Voltage Regulator, Ignition Coil etc.

      Material: High quality aluminum cylinder head and iron cylinder body

      Transportation: The oil in the engine will be drained out and the engine will be repackaged to avoid leaking before shipping. We package the engines with five-layer anti-earthquake carton boxes to ensure the items arrive in perfect condition.

    Usage Tips

    • Do start the engine in an open place to let the exhaust gas gets full emission.
    • For Automatic Transmission Engines, please don't start is at reverse. For Semi-auto and Manual Transmission Engines, please do start at Neutral.
    • Check lubricating oil level and fuel level regularly. Make sure they are sufficient and not leaked.
    • Please do not accelerate until it has warmed up for 1-3 minutes if cooler start engine.
    • All new engines need a initial run-in time. Because the surface of the parts is not that smooth, they need a time to run-in to have the parts get smooth and work together better. The initial run-in should be at least 500KM. During the initial run-in, please avoid full-open throttle and don't start it over 80 percent of the top speed. Make sure to clear all fuel and change new when initial run-in over. Be strictly obey this will prolong the engine service life and has it working in good condition.
    Customers who bought this product also purchased

    Customer questions & answers

    Customer Reviews (46) Click here to write a review
      Average Rating out of 46 voters 5 of 5 Stars!
    Reviewer Product Review
    josh F

    5 of 5 Stars! 02/03/2018
    Great motor. Will be ordering another one soon for my next project!! Started up right away and didn't have to adjust anything just took off!

    2 people found this helpful
    kevin Y

    5 of 5 Stars! 02/01/2018
    bought this for my sons atv. Fast shipping and great tire for the money. I mounted it my self and had no problems. I would recommend this to any one looking for an aggressive engine.

    2 people found this helpful
    carol J
    Verified Purchase
    5 of 5 Stars! 01/20/2018
    I order this engine based on the previous reviews. The engine well and I hope I never have to find out how it performs! Fits great, looks great, and was a great price. I recommend this.

    2 people found this helpful
    g. E W
    Verified Purchase
    5 of 5 Stars! 01/05/2018
    I was a little concerned about it fitting our atv. After months of looking, I decided to purchase. Worked out well. Thanks for your prompt delivery, which was sooner than expected.

    2 people found this helpful
    tina S
    Verified Purchase
    5 of 5 Stars! 12/16/2017
    Iam very excited to I purchased this for my grandson at the last minute and it came fast !Very beautiful high quality engine. He loved this very much!

    2 people found this helpful
    Picken A

    5 of 5 Stars! 11/06/2017
    I purchased 2 sets for my sons. These sets are wonderful! They are nice quality, with a great look to them, too. I love that.

    2 people found this helpful
    Verified Purchase
    4 of 5 Stars! 10/03/2017
    Excellent product runs great and was easy to install . Got to keep the Grandchildren happy

    2 people found this helpful
    Larry D
    Verified Purchase
    5 of 5 Stars! 09/03/2017
    Engine runs well. Started right away. Good price. You just need to spend little time understanding the wiring before you get it up and running.

    2 people found this helpful
    Steven B
    Verified Purchase
    5 of 5 Stars! 08/23/2017
    It works great best buy I've had in a long time worth every penny I use it in my large go kart and it pulled great about 45 mph

    2 people found this helpful
    Sarah M
    Verified Purchase
    5 of 5 Stars! 08/17/2017
    Arrived quickly. Bolted right up to my scoot coupe. All the wires plugged right in. I bolted it on, and cranked it up in less than an hour. Just what I was looking for and more.

    2 people found this helpful
    See all 46 customer reviews 
    Making buying decisions based solely on these reviews is not recommended.
    Shopping Cart
    0 items
    100% Satisfaction
    100% Satisfaction
    12Month Warranty

    Average Rating:

    5 of 5 Stars!

    What customer said:
    I purchased 2 sets for my sons. These sets are wonderful! They are nice quality, with a great look to them, too. I love that. ..
    Read all Reviews