SKU: 15935600386

1978 Honda Z50A 78'/ Z50J1 50cc Complete Top End Kit 12200-GK4-761 12301-086-000

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Description

1978 Honda Z50A 78'/ Z50J1 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: 15935600386

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4.0 ★★★★★
Based on 29 reviews
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A
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Amazon Customer
Houston, US
★★★★★ 5
True Lavender Scent
Scent: Lavender, Size: 3.3 Fl Oz (Pack of 1)
Good quality cream. Nice fragrance - true lavender scent. Non-greasy. I like the flip top cap - easy to use and handy in the car.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 24, 2026
K
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Kaela
Lake Worth, US
★★★★★ 5
Absolutely love this hand cream!
Scent: Lemon Cream, Size: 3.3 Ounce (Pack of 1)
I have really dry skin, partly because I take a chemo med for autoimmune issues that really dehydrated me no matter how much water I drink. Other lotions I bought were either too greasy and just sat on the surface of my skin OR simply weren’t hydrating enough. But this hand cream is my absolute favorite now. It is super moisturizing, but is also fully absorbed by my skin very quickly. It’s honestly impressive. There was a nearly immediate, extremely noticeable difference in the condition of my skin after I started using this. This lotion even seemed to solve a related issue I was having where my dead skin cells just refused to be shed, no matter how much I scrubbed in the shower or how much of my normal body lotion I applied. Sorry if it’s TMI, but literally minutes after applying this for the first time on my arms, I was able to basically just wipe off that dead layer of my skin, revealing much softer and more supple skin underneath. This is an issue that has been plaguing me for over a year that was seemingly solved in one day. Additionally, I find that the scent is very pleasant. It weirdly reminds me of Froot Loops at first, but in the best way possible. It’s just got that nice citrus-forward, sweet fragrance, and as it dries down the scent gets mellower and more creamy as the lemon settles into the background. It’s definitely got a gourmand scent imo, but it’s not cloyingly sweet or artificial. It just genuinely smells like madeleines with lemon curd or something. I think the Shea butter is largely responsible for the creamy, vanilla-like scent that develops after a couple minutes. It’s very nice, I find myself smelling my hands for like an hour after I apply it because it’s just so delicious! It doesn’t have a strong throw at all once absorbed, the scent fades to only be detectable if someone is inches from your skin, so it hopefully shouldn’t annoy people around you unless they are severely intolerant to fragrance.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 14, 2022
K
Verified Purchase
Keith
West Palm Beach, US
★★★★★ 3
I would not recommend
Scent: Coconut, Size: 3.3 Ounce (Pack of 3)
First problem…the product description says “scent coconut” which is a false description. I would describe the scent as “medicinal” and of course reminds me of being in a hospital. Second problem…a reviewer called this item non greasy. This product is very greasy/oily and is slow to absorb. The good thing about this item is that its effective for dry skin. Having tried a couple dozen hand creams, my top 3 in ascending order are… 3. Okeffees working hands. Unscented . If you’re working outside, landscaping, etc, this is excellent. 2. Ahava. Strong masculine scent (musky). Works great. Not greasy or oily. Fast drying. The only negatives are: it’s not always in stock, it’s expensive. 1. Jack Black hand healer. Slight scent from eucalyptus (smells similar to menthol). Works great. Not greasy. Fast drying. It’s expensive however significantly less expensive than Ahava. It’s also much easier to find in stock.
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Reviewed in the United States on December 16, 2025
A
Verified Purchase
Ashley onAmazon
Natrona Heights, US
★★★★★ 5
I really like it Good coconut smell and a nice lotion texture
Scent: Coconut, Size: 3.3 Fl Oz (Pack of 1)
I really love this lotion I will most definitely buy it again I think it makes me smell really good I even had somebody ask me what I was wearing lol
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 25, 2026
S
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Superdie of Largo
Charlottesville, US
★★★★★ 5
Makes my hair shine.
Size: 3.38 Fl Oz (Pack of 1)
This product makes my hair smell good and shiny. You only need to use a small amount for results. I am sure my hair will grow since oil is good for your hair.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 24, 2026

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