2021-2023 Gas Gas EX 300 Cylinder Piston Top End Kit 55630038100 55730138000
SKU: 45478513121

2021-2023 Gas Gas EX 300 Cylinder Piston Top End Kit 55630038100 55730138000

Sale price$159.70 Regular price$177.44
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Description

2021-2023 Gas Gas EX 300 Cylinder Piston Top End Kit 55630038100 5573013800072mm Cylinder Piston Gasket Top End Rebuild Kit For EXC XC XC W 300 TPI 2019 2022 Features: If your cylinder blows through, or a piston seizure has occurred, then this kit is exactly the right thing for you. Kit includes cylinder, piston, rings, pin, clips & top end gasket kit (you get exactly what is pictured). Piston is anodized for superior heat resistance and longer lifespan. The gaskets use performance materials to increase durability and provide

72mm Cylinder Piston Gasket Top End Rebuild Kit For EXC / XC / XC-W 300 TPI 2019-2022

Features:
If your cylinder blows through, or a piston seizure has occurred, then this kit is exactly the right thing for you.
Kit includes cylinder, piston, rings, pin, clips & top end gasket kit (you get exactly what is pictured).
Piston is anodized for superior heat resistance and longer lifespan.
The gaskets use performance materials to increase durability and provide greater reliability.
Includes all gaskets pictured to rebuild top end.
Kit is for standard bore size - 72.0 mm, 18mm steel piston pin.
This kit is excellent as a low-cost replacement for defects in the original cylinder.

Specifications:
Condition: Aftermarket 100% Brand New
Quantity: 1 Set
Material: Aluminum
Displacement: 300cc
Engine: 2-Stroke
Bore Type: Standard Bore
Bore diameter: STD 72mm
Pin diameter: 18mm
Pin Overall Length: 56mm

Replacement Part Number:
Cylinder and Piston: 55630038100, 55730138000
Piston Kit: 55630307100
Cylinder Base Gasket: 55430030040
Left Control Cover Gasket: 55537006000
Right Control Cover Gasket: 55537008000
Pin, Piston: 55430033000
Piston Ring Set (Std): 54830132000
Circlips, piston (2): 54830074000
Intake Manifold Gasket: 54830062200
Exhaust Gasket: 0770440030

(Always compare part numbers to your parts schematics and cross reference appropriately.)
(This is NOT a genuine Part, OEM part numbers are included for product type identification and comparison only.)

Fits Make/Model/Year:
Only fits fuel injected TPI two-stroke engines.
Fit for 300 XC TPI 2019-2022
Fit for 300 EXC Six Days TPI 2019-2022
Fit for 300 EXC TPI 2019-2022
Fit for 300 XC-W TPI 2019-2022
Fit for 300 XC-W Six Days TPI 2019-2022
Fit for Gas Gas EC 300 2021-2023
Fit for Gas Gas EX 300 2021-2023
Fit for Husqvarna TE 300 TPI 2019-2023
Fit for Husqvarna TX 300 TPI 2019-2022

(Compatibility Chart is for Reference ONLY!!!)
(Please Compare with Your faulty unit and the image we provided to Decide Fitment)

Package Includes:
1x Cylinder
1x Piston
1x Piston Ring Set
1x 18mm Wristpin
1x Circlip(2)
1x Cylinder Base Gasket
1x Intake Manifold Gasket
1x Left Control Cover Gasket
1x Right Control Cover Gasket
1x Intake Manifold Gasket
2x Exhaust Gasket:
O-Ring Kit

(Comes exactly as pictured.)

Note:
Carefully compare to your old parts to be sure this is the correct part for your machine.

The product on offer is an accessory or spare part and thus is not an original product of the vehicle manufacturer.
The name of the vehicle manufacturer is stated only as an indication of the determination of the product being offered as an accessory or spare part, to clarify, for which vehicle the product on offer Fits.

Warranty:
Returns: Customers have the right to apply for a return within 60 days after the receipt of the product
24-Hour Expert Online: Solve your installation and product problems

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 45478513121

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4.5 ★★★★★
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Verified Purchase
Cienfuegos
Dallas, US
★★★★★ 5
Great watch!!!!
Color: Grey
Excellent quality, one of the best, elegant.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 6, 2026
T
Verified Purchase
T. H.
Bozeman, US
★★★★★ 5
Excellent value for an automatic watch, keeps VERY good time.
Color: Grey, Color: Grey
I've only had the watch for a day but wanted to leave a quick review on it to share a couple of notes. So far it keeps VERY good time, better than any of the automatics I own (including a Rolex Submariner, Tag Heuer Aquaracer, Tag Heuer Formula One, and several other sub $1k watches). I set it to an atomic time app on my phone yesterday and 24 hours later it's still SPOT on - hasn't gained/lost even a 1/10 of a second. I was shocked to see it's kept PERFECT time for the last day, I'm really blown away so far. I've worn it the entire time, we'll see how well it keeps time while being stored in a winder. This picture shown is the watch with a 22mm leather band on it, fit's without any issues (just need to squeeze in the leather a tad). I doubt it would work with a 22mm metal bracelet, but leather works great. Just FYI since the 21mm lug width is kind of odd. The face isn't quite a lustrious as the images make it look, but it's still a great-looking watch. For a sub $1000 automatic you can't go wrong, this is a fantastic watch at a great price. It'll be my daily driver for some time I'm sure. If I have any issues in the future I'll update the review.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 22, 2021
B
Verified Purchase
Beniamin Grigoryan
Omaha, US
★★★★★ 5
It looks really cool and striking.
Color: Grey, Color: Grey
Really cool and beautiful watch. Although my specific unit runs 5 seconds fast every day—at first it’s annoying, but eventually you stop caring. 🤣
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 16, 2026
P
Verified Purchase
Paul Andreini
West Palm Beach, US
★★★★★ 5
A Beautiful Timepiece at an Awesome Price!!
Color: Grey, Color: Grey
I have lusted after this watch for four months. I first tried on a similar model (stainless steel band with a green face) in a local jewelry shop (Spitz Jewlers, Walnut Creek, CA, USA). It was "love at first sight," even if I didn't love the white lines on the face from 12-6 and 3-9. At the time, the MSRP was $775. The MSRP has since increased to $795. But I bought this beauty on Amazon.com for only $524.99; after applying the cash-back from my Prime credit card, this watch costs only $498.75. This was "the offer that I could not refuse," to quote from "The Godfather." Accuracy could be better: after only a few days, it is now 7 seconds behind my phone (to which I set my new watch). But I don't really care about that all that much. This is why I rated "accuracy" at 4 stars, but my overall review is 5 stars. My video shows the date changing suddenly at 11:59:59pm, just how I want it; in another photo, you can see that my Seiko changes the date more slowly, which I do not like. This watch is absolutely phenomenally beautiful. If you're on the fence over whether to make this purchase, then I would say "go for it!" You will not find a prettier, more accurate watch at a lower price in ANY store in the entire USA.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 28, 2023
P
Verified Purchase
pradeepkanth
Chelsea, US
★★★★★ 4
Classy and sporty. Great value!
Color: Grey, Color: Grey
Excellent watch for the price. Looks sporty and dressy. More towards dress watch. Blue is dynamic. Strongly recommend blue for sporty feel. I was thinking of aqua terra. This come close to it with a price less than what i would have paid my state tax for omega aqua terra. My only concern is bracelet which i feel kind of OK. Better bracelet design would have made this watch much superior. 21 lug width is awful. Other than that, nothing to complain.
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Reviewed in the United States on July 13, 2020

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