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GOOFIT 39mm Cylinder Head with 64mm Valve for 4 Stroke GY6 49cc 50cc ATV Scooter Moped 139QMA 139QMB Engine Part

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$24.99

$ 11 .99 $11.99

In Stock
  • Mounting hole distance:50mm/2.0";Intake valve diameter:18.6mm/0.73",Exhaust valve diameter:16mm/0.63";Valve length:64mm/2.5".(As the picture shows)
  • High quality cylinder replacement part.High toughness,corrosion resistance,rustproof and durable.Has a good heat dissipation structure design,providing reliable performance and long life service.
  • Suitable for valves with a length of 64mm , not suitable for valves with a length of 69mm.Please verify model number and size prior to ordering to ensure this is the correct part.
  • Fit for 4 stroke GY6 49cc 50cc Scooter Moped ATV.(read description for fitment infos)
  • Warranty:We are always available to help our customers.If you are not satisfied with the order,please leave us a message.Wish you have a happy shopping experience,we are committed to providing the best service.



Product Description

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larry
Reviewed in the United States on February 6, 2024
it work s but not.
Bill Sgaggero
Reviewed in the United States on April 24, 2024
Right part. Came on time.
Karlheinz u.
Reviewed in Germany on August 26, 2023
Die Ventile sind zu kurz, das Ventilspiel siehe Bild ist nicht einstellbar.
Ben
Reviewed in the United States on May 27, 2023
Make sure that this is the head you need...I went to reassemble and was wondering why my valves weren't opening without being adjusted all the way...turns out valves sit lower on 64mm head...something I didn't know till I read the reviews..so if yours is not the 64mm head you will have to order 64mm rockers also..
Jonathan E. Smith Jr.
Reviewed in the United States on November 29, 2023
Valves to causing valve springs to bind. Need valves to be longer.
Derek
Reviewed in the United States on November 13, 2023
This item was exactly as described worked perfect
John Featherston
Reviewed in the United States on April 23, 2023
Two time I have bought this cylinder head and the intake valve stick right out of the box. Open up the intake valve guide more, giving more clearance. I was a Bobcat skid steer mechanic for 21 years. Rebuild 100 of engine.
Matt
Reviewed in the United States on March 15, 2021
Head is only 50mm from bolt hole to bolt hole. The outer diameter of the actual compression impression is smaller than the stock head. Totally get screwed
Mr. T. P. Acton
Reviewed in the United Kingdom on January 2, 2021
everything spot on
Christopher Holt
Reviewed in the United Kingdom on September 16, 2020
my kymco agility had problems with the valve seats and i saw no way of fixing the old head so bought and installed this, have since done 500 miles and changed the oil twice and it runs like new.only complaint is that this is missing the EGR port but that's just me buying the wrong one.overall would recommend to everyone
Gilles
Reviewed in France on February 1, 2020
Produit pas cher
Client d'
Reviewed in France on April 2, 2019
je suis très contant de ma commande
Stephen Dias
Reviewed in the United States on October 24, 2018
Great part. I unfortunately didn't read the description properly (possibly at all?) But it had the short valves and I needed the long ones:( My bad. Great part. Would order again if the need arise.
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