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57.4mm 150cc Top End Rebuild Kit Cylinder Piston Gasket Assembly Sets Fit for 150cc GY6 ATV Moped Scooter Go Kart 157QMJ Engines

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$62.95

$ 26 .99 $26.99

In Stock
  • Fitment: Cylinder Piston Gasket Kit Fit for 150cc GY6 ATV Moped Scooter Go Kart 157QMJ Engines.
  • Specification: Material: Strong Cast-iron. 57.4mm Bore Piston. No installation instruction included, professional installation required.
  • Direct Replacement: Cylinder piston ring gasket kit sets engineered from premium materials, durable and reliable. No need any modifications to install in your motor.
  • Features: Cylinder Piston Ring Gasket kit with precise density to provide a reliable seal with minimal tightening. Nice kit to rebuild an engine.
  • Package Included: 1 x 57.4mm Bore Cylinder Piston Gasket Rebuild Kit. (as pictures showing).



Product Description

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Fitment:

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Fitment:

Top End Rebuild Kit Fit for Helix 150cc engine

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Top End Rebuild Kit Fit for Genuine Trailmaster 150 XRS XRX and other 4stroke GY6 150cc engine

Top End Rebuild Kit Fit for Yerfdog GX150 Spiderbox 150cc such as 3206/4206, 3209/4209, 32092/42092, 32093/4209, 42054, 42094, 42101, 42105

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SHANE
Reviewed in the United States on February 11, 2025
the kit i got was good until it wasnt ,the rings for the piston were incorrect they do not fit i will need the correct ones
paul klawonn
Reviewed in the United States on August 2, 2024
Had no problems with the install and been running it hard. No problems yet. Thr rings for the piston need a hair bigger gap but that is not a problem.
Justin
Reviewed in the United States on June 9, 2024
Replaced the top end of the engine and I ran it about 15 minutes at idle to heat up/break in, then ran it for 15 minutes at varying throttle levels, then lost compression. Had to take it all apart again to confirm the piston head broke between the rings.
Barry Davis
Reviewed in the United States on June 15, 2024
Everything fit perfectly and kart fired right up and runs like new. This fit perfectly for a Trailmaster 150 XRS
John Weston
Reviewed in the United States on December 7, 2024
Been waiting for this for some time screwed up delivery the first time now I finally get the product no piston rings no gaskets what are disgrace and I needed this part for a customer now the customer is pissed off
veronica
Reviewed in the United States on December 30, 2024
Installed and has been great!
Tommy Gun
Reviewed in the United States on June 22, 2023
Fitment is good. Check the piston rings gaps because mine had zero gap and needed to be shaved for the .007 gap. Don't forget to order new intake and exhaust studs too.
Nick
Reviewed in the United States on June 24, 2022
Update 11/13/22. Seller did send replacement parts have yet to install will update after winterUpdate 6/26/22... started smoking from what I would presume valve seals.Hopefully seller can help fix otherwise still runs just burns oil at a good rateGot a ton of use on rebuild and seems to be holding up