SKU: 72903159900

2009-2018 Honda Z50J (FI) 50cc Complete Top End Kit 12200-GK4-761 12301-086-000

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Description

2009-2018 Honda Z50J (FI) 50cc Complete Top End Kit 12200-GK4-761 12301-086-000Honda ST 50 Dax C 50 Z 50 Monkey Z50R XR CRF 50 50cc Complete Top End Kit Features: Complete engine cylinder Top end rebuild kit for Honda 50cc. If your cylinder blows through, the compression is too low, or even a piston seizure has occurred, then this kit is exactly the right thing for you. Kit includes cylinder, cylinder head, piston, rings, pin, clips & top end gasket kit (you get exactly what is pictured). Includes all gaskets pictured to rebuild

Honda ST 50 Dax C 50 Z 50 Monkey Z50R XR CRF 50 50cc Complete Top End Kit

Features:
Complete engine cylinder Top end rebuild kit for Honda 50cc.
If your cylinder blows through, the compression is too low, or even a piston seizure has occurred, then this kit is exactly the right thing for you.
Kit includes cylinder, cylinder head, piston, rings, pin, clips & top end gasket kit (you get exactly what is pictured).
Includes all gaskets pictured to rebuild top end.
Kit is for standard bore size - 39mm, 13mm 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: 49cc
Bore Type: Standard Bore
Bore Size: STD 39mm
Pin Diameter: 13mm
Cooling system: Air cooled

Replacement Part Number:
Cylinder: 12101-GB2-000
Cylinder Head: 12200-GK4-761
Cylinder Head Cover: 12301-086-000
Cylinder Head Cover Gasket: 12391-035-306, 12391-GB2-000
Cylinder Head R Side Cover: 12331-GB0-910
Cylinder Head R Side Cover Gasket: 12394-GB0-910
Cylinder Head L Side Cover: 12341-065-920
Cylinder Head L Side Cover Gasket: 12395-GB2-306
Valve Tappet Cap(x2): 12361-035-000
Cylinder Base Gasket: 12191-GW8-681, 12191-GW8-682, 12191-035-010, 12191-035-000
Cylinder Head Gasket: 12251-GBJ-003
Piston (Std): 13101-GBZ-701, 13101-GBZ-700
Pin, Piston: 13111-GB2-000
Piston Ring Set (Std): 13011-GBZ-702
Circlips, piston: 13115-001-000
Valve Stem Seals: 12209-GB4-681
Carb Insulator Gasket: 16201-165-A10

Fits Models:
Fit for Honda - 2004-2009 - CRF50F - Mini Cycle
Fit for Honda - 2011-2019 - CRF50F - Mini Cycle
Fit for Honda - 2000-2003 - XR50R - Mini Cycle
Fit for Honda - 1969-1978 - Z50A - Mini Trail
Fit for Honda - 1979-1999 - Z50R
Fit for Honda - 1986 - Z50RD
Fit for Honda - 1988 - ZB50
Fit for Honda - 1967 - Z50M
Fit for Honda - 1968-1969 - Z50A - K0
Fit for Honda - 1969-1970 - Z50A - K1
Fit for Honda - 1970-1971 - Z50A - K2
Fit for Honda - 1972 - Z50A - K3
Fit for Honda - 1973 - Z50A - K4
Fit for Honda - 1974 - Z50A - K5
Fit for Honda - 1975 - Z50A - K6
Fit for Honda - 1976 - Z50A - 76'/ Z50J1
Fit for Honda - 1977 - Z50A - 77'/ Z50J1
Fit for Honda - 1978 - Z50A - 78'/ Z50J1

Also fits Dax ST, Monkey, Gorilla, Chaly, SS, C, CD with 6 Volt (!) series engine, Jincheng, Dax Q5, Gorilla Q7, Sasy with 50cc cylinder head!
Fit for Honda - 1978-1990 - Z50J (6v)
Fit for Honda - 2009-2018 - Z50J (FI)
Fit for Honda - 1978-1988 - Z50G Gorilla (6v)
Fit for Honda - 1988-1990 - ST50 Dax
Fit for Honda - 1985-1996 - C50 Cub

(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 Cylinder Head
1x Cylinder Head Cover
1x Cylinder Head Cover Gasket
1x Cylinder Head R Side Cover
1x Cylinder Head R Side Cover Gasket
1x Cylinder Head L Side Cove
1x Cylinder Head L Side Cover Gasket
2x Valve Tappet Caps
1x Cylinder Base Gasket
1x Cylinder Head Gasket
1x 39mm Piston (Std)
1x Piston Pin
1x Piston Ring Set (Std)
2x Circlips
2x Valve Stem Seals
1x Carb Insulator Gasket
1x O-Ring kit

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:
1. Returns: Customers have the right to apply for a return within 60 days after the receipt of the product
2. 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: 72903159900

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4.3 ★★★★★
Based on 16 reviews
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T
Verified Purchase
Tiana Frith
Belleville, US
★★★★★ 5
Best sunscreen ever
Set name: Face - 1.7 oz.
I love how light it is, it doesn’t leave a white cast. It even leaves skin looking glowy. It also feels moisturizing. I have sensitive skin that breaks out with sunscreen. It doesn’t breakout with this one! I also love that it’s hsa eligible! Have already recommended and shared with others. I will never switch to another sunscreen.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 26, 2026
J
Verified Purchase
JLJ
Dallas, US
★★★★★ 4
Works great but very runny
Set name: Face - 1.7 oz.
I’d call this a liquid and not lotion. It literally pours out of the tube without even squeezing so has to be held upright at all times when the cap is off. Makes a real mess (and I do shake it well before opening as the instructions say). Other than the packaging, I really like the product. It blends well with no white cast after rubbing in, is moisturizing without looking greasy at all or causing breakouts, and has provided good sun protection. Impressed! Also like that while water and sweatproof, it washes off with a gentle face cleanser at the end of the day unlike some of the zinc-based products I’ve tried that leave a thick coating and require scrubbing. This is my first Blue Lizard product and I’ll probably keep using it as a daily sunscreen—but definitely not to throw in a bag and take to the beach because of the messy application. Bought the stick version to try out.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 1, 2022
G
Verified Purchase
Gretchen
Massapequa, US
★★★★★ 5
Great for sensitive skin and actually dries clear!
Set name: Body - 3 oz., Set name: Body - 3 oz.
I'm trying to be on top of my sunscreen application after YEARS of never wearing it. My skin is extremely sensitive and prone to eczema. Any chemical sunscreen that was applied to my body (especially the elbow/knee pits) would cause me to break out in horrible eczema patches. I switched to mineral sunscreen, but everything left a ghostly white sheen. Luckily, this sunscreen does exactly as advertised. I've been using it daily for a week straight, and I have had no problems with it. The consistency of this product is thick, kinda sticky at first, and a bit hard to blend/spread out, but I think that's bound to happen with any sunscreen that's actually protective. It may also seem that it leaves a white cast initially, but after letting it dry for a minute or two, it becomes clear. Overall I can't recommend this enough, and I'm glad to finally have a sensitive-skin-friendly mineral sunscreen that doesn't leave a white cast :)
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 1, 2026
D
Verified Purchase
DsD
Waukegan, US
★★★★★ 5
Where has this been my whole life
Set name: Face - 1.7 oz., Set name: Face - 1.7 oz.
Let me give you some background. I’m middle eastern. That means I tan well but have two different skin tones; my January skin and my July skin. I wear a watch and I’ve been out of the sun since September. My tan hasn’t totally faded but the lighter band, that’s my real skin color. That’s how I want to be all over. I always try to make better choices in my skin products. I have tried so many mineral based sunscreens for my face and body but I usually end up returning to a chemical based one for several reasons. HOWEVER, I have finally found the product I’ve been searching for. Blue Lizard leaves no white cast on my skin. It’s easy to rub in. It also does not get trapped in my dense, black eyebrows the way other products did. It would gross me out and look like I had flakes in my eyebrows. I just spent the week at Universal Studios and I did not burn. I didn’t tan either, which is great. Tanning is also a sign of sun damage. Chemical or mineral sunscreens often prevent sunburn but I still tan. I don’t want either. I am sold and will continue to buy this product. I feel great about that it has safer and better quality ingredients.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 4, 2026
D
Verified Purchase
D. Kraus
Waukegan, US
★★★★★ 5
Works well but oily.
Set name: Face - 1.7 oz.
This works well but is not ideal if you want to wear under makeup. It has a very oily consistency. Price is good.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 1, 2025

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