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X-PRO

X-PRO 125cc ATV Engine Motor 4-Stroke w/Automatic Transmission, Electric Start, NO Reverse

  • Based on 48 reviews
Condition: New
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$388.95 Why this price?

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Availability: In Stock.
Fulfilled by XPROUSA
Arrives Jul 5 – Jul 9
Order within 21 hours and 59 minutes
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Features

  • 125cc 4-stroke Engine Motor.

Description

125cc 4-stroke Engine with Automatic Transmission, Electric Start Engine Model:308-999037 Ignition Method: CDI Engine Type: Single Cylinder, 4-Stroke, 2-Valve Lubrication: Pressure/splash Cooling System: Air Cooled Fuel Supply: Carburetor Atomization Horsepower: 7.64HP/7000-8000Rpm (5.7KW/7000-8000Rpm) Starter: Electric Starter Max.Torque: 8.0N.m/5000-6000rpm Transmission: Auto Transmission Min.Stable Idle Speed: 1350-1650r/min Clutch: Automatic Multi- plate Wet Clutch Min.Fuel Consumption: 9.65oz/HP.h (367g/Kw.h) Cylinder Diameter: 2.13" (54mm) Carburetor Model: PZ22 Piston Stroke: 1.95" (49.5mm) Carburetor Type: Plunger type carburetor Bore & Stroke: 2.13" x 1.95" (54mm x 49.5mm) Spark Plug Model: A7TC Cylinder Working Volume: 0.03 Gallon (120ml) Fuel No.>= 87 Compression Ratio: 9.0:1 Lubrication Model: SF15W/40-SE Ignition Type: CFW Lubrication Capacity: 0.20 Gallon (900ml)

Brand: X-PRO


Material: Aluminum


Item Weight: 65 Pounds


Voltage: 12 Volts


Wattage: 5.7 KW


Voltage: 12 Volts


Wattage: 5.7 KW


Item Weight: 65 Pounds


Material Type: Aluminum


Brand Name: X-PRO


Model: 308-999037


Manufacturer: X-PRO


Part Number: 308-999007


Unit Count: 1 Count


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Jul 5 – Jul 9

This item is non-returnable:

Non-returnable. Transportation of this item is subject to hazardous materials regulation

View our full returns policy here.

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  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Top Amazon Reviews

    • X Pro 125 CC Engine
Worked great in 125 cc four wheeler for a replacement engine.
Reviewed in the United States on May 26, 2024 by Amazon Customer
    • Taotao quad
Runs great
Reviewed in the United States on October 29, 2025 by Kyle
    • Packed well. Marked on case as 154FMI Packed well. Marked on case as 154FMI
Review Image by EPSGUNNER
Arrived in double box. With intake manifold, side cover, 13T sprocket, and spark plug. Mine did come with the 5 wire harness and I had prior bought the adapter for my application. Will make my wiring neater for my Amstar 50 swap. My wire colors match up nicely. Overall happy with packaging and motor turns freely by hand. Will update after install. Marked 154FMI (aka 125cc) though included emissions sticker on box says 107cc?? Anything has to be better than my 50. LoL ... show more
Reviewed in the United States on May 6, 2021 Reviewed in the United States on May 6, 2021 by EPSGUNNER
    • Not to exceed 31 mph! Not to exceed 31 mph!
Review Image by Anthony Baker
This thing sucks. There are auto 125’s that'll go 55 all day. This is not one of em
Reviewed in the United States on June 24, 2024 Reviewed in the United States on June 24, 2024 by Anthony Baker
    • Great value thus far
I bought the engine to put in a pit bike. Installation is super simple, engine started right up and ran great. I will update my review if anything changes following breakin. So far so good.
Reviewed in the United States on July 29, 2018 by BlackAcid
    • I can't believe how good this engine Runs
I can't believe how good this engine Runs, started first try ,without it for a month no problems, very strong running and smooth , can't beat the price
Reviewed in the United States on July 3, 2017 by Amazon Customer
    • Item is as advertised
I don't want to be the guy who makes noise with no issue, but it seems all the sellers of these engines are in you figure it out yourself mode.tho these little engines are not a hard install, why the hedging about simple diagrams or some hand drawn details even for these items? Seller, not everyone will part with the fee to have these things put together. ... show more
Reviewed in the United States on September 11, 2023 by kotto k.
    • So far so good.
This worked as expected. I did have to modify a few things for my particular application, but it started right up, and has been trouble free so far. It's only been a week though.
Reviewed in the United States on February 3, 2017 by Kevin H

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