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AlveyTech Carburetor for 40cc 4-Stroke ATV, Dirt Bike, & Mini Bikes - 12 mm Engine Intake Carb with Manual choke, Primer Bulb, and Adjustable Screws, for Some Gas-Powered Garden and Lawn Engines

  • Based on 33 reviews
Condition: New
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Availability: Only 2 left in stock, order soon!
Fulfilled by Monster Scooter Parts

Arrives May 10 – May 14
Order within 1 hour and 5 minutes
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Features

  • For 40cc 4-stroke engines. Will NOT fit 2-stroke engines
  • Used on dirt bikes, ATVs, mini bikes, and trail bikes. Also used on some gas powered 4-stroke garden and lawn engines
  • Engine intake inner diameter: 12 mm
  • Air intake inner diameter: 15 mm
  • Note: This carburetor for 40cc 4-stroke engines is visually similar to the 11 mm intake carburetors that are made to be used on 2-stroke engines, however, they are not interchangeable

Description

Whether you are looking to replace a damaged or missing carburetor, or you are looking for a "greener" more efficient fuel system, then look no further than this carburetor for 40cc ATVs, dirt bikes, and mini bikes to provide the performance you want as well as dependability. Specifications Engine Size(s): 40cc Engine Intake Inner Diameter: 12 mm Air Intake Inner Diameter: 15 mm Overall Depth: 3 cm Overall Width: 7 cm Overall Height: 9 cm Center to Center Mounting Hole Distance: 31 mm Mounting Holes Diameter: 6 mm Choke: Manual Primer Bulb: Yes Fuel Line Inner Diameter: 3 mm Fuel Line Outer Diameter: 4 mm Drain: No Fuel Shutoff: No

Brand: AlveyTech


Vehicle Service Type: ATV


Flange Type: Bolt On


Recommended Uses For Product: Trail


Specific Uses For Product: Performance


Brand Name: AlveyTech


Manufacturer: AlveyTech


UPC: 810070311223


Manufacturer Part Number: P33-4333


Compatible with Vehicle Type: ATV


Flange Type: Bolt On


Recommended Uses For Product: Trail


Specific Uses For Product: Performance


Item Dimensions D x W x H: 3.5"D x 2.5"W x 1.5"H


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: May 10 – May 14

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.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Perfect replacement
Exact match easy install and it worked perfectly!
Reviewed in the United States on July 26, 2024 by Amazon buyer

  • Didn’t work
Trash product. Motor runs but only wide open no matter how you adjust it.
Reviewed in the United States on July 30, 2025 by Amazon Customer

  • Does not fit 40cc
Does not fit 40cc syxmoto dirtbike.
Reviewed in the United States on April 24, 2026 by Austyn Maddox

  • Carb for X Pro 40cc
Perfect fit for my daughters 40cc Xpro! Needed to richen the fuel screw a bit. Runs absolutely perfect no bog or issues after adjustment. Way more power all around!
Reviewed in the United States on September 29, 2023 by Jason S.

  • Carburetor for mini bike
It fit perfect on the 40cc mini bike and works much better than the original
Reviewed in the United States on October 23, 2023 by Robert Leach

  • Check screws first
This carb is definitely an ubgrade for the carb that comes on the syx moto 40cc. But it is not without it's own faults. The screws that hold the carb together like to back out while the engine is running. Make sure to remove all screws and apply lock tight to them before installing on engine.
Reviewed in the United States on September 18, 2025 by Thomas

  • Needs to be adjusted...
It was an exact match to the one I took off my mini bike. But it doesn't want to run unless the choke is on just a little bit. There was no paperwork with this carb so I'm gonna guess and start adjusting the screw I think it is and see what happens. I have ridden the mini while on partial choke and it ran good and had good acceleration. Just needs fine tuning. ... show more
Reviewed in the United States on March 28, 2023 by SnAkE

  • Carb
Excellent replacement for a bad carb. Install, 3 pulls, voom, voom
Reviewed in the United States on November 17, 2023 by Jack Westerhout

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