CYLINDER ENGINE REBUILD KIT FOR HONDA Z50 Z50A Z50R TRIAL BIKE DIRT BIKE

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CYLINDER ENGINE REBUILD KIT FOR HONDA Z50 Z50A Z50R TRIAL BIKE DIRT BIKE MOTOR`

Product Description

39mm Cylinder Head Piston Gasket Top End Rebuild Kit 50cc For Honda Monkey Z 50 Z50A Mini Trail Z50R CRF50F Mini Cycle

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.

⭐MUST-READ FITMENT INFO

• This part fits vehicles listed in the description and compatibility chart ONLY

• Critical checks before purchase:

✔ Compare OEM# on your original part

 ✔ Match mounting hole patterns in photos

 ✔ Verify electrical connector types (if applicable)

✅ Free fitment confirmation: Send Your specs + OEM numbers + VIN + clear photos of your current part!

• Shipping
• Returns
• Feedback
• Warranty
• About us

Shipping

✅ Order Processing: Ships within 3 business day (Mon-Fri, excludes holidays).

✅ Delivery Time: 3-7 business days (continental U.S.).

✅ Tracking Info: Provided automatically via eBay.

✅ All orders will be shipped through USPS, UPS and Fedex depends on the weight of the items.

✅ Shipping notification will be emailed to you once package has been shipped

Returns

✓ 60-day returns | Must be unused in original packaging

✓ Required: Contact us before opening return. Message us first for fastest resolution

 

If returning due to change of mind, please select:

"Changed mind" or "Didn't like item"

 

For item issues:

Contact us immediately with photos/video evidence

✓ We may offer solutions without needing a return

 

⭐Non-refundable cases:

• Used/assembled items • Missing packaging • Buyer-caused damage

 

⭐Process:

1. Message us → 2. Get return label (if eligible) → 3. Refund in 3-5 days after inspection

Feedback

⭐ We Strive for 5-Star Service!

Your feedback helps us improve and build trust in the motorcycle community.

 

⭐ Before Leaving Feedback:

✓ Contact Us First if any issue arises - we resolve 99% of problems within 48 hours!

✓ Verify your item meets expectations (check sizing/compatibility if applicable)

✓ Inspect packaging thoroughly before installation

 

⭐ If You're Unhappy:

Please message us via eBay Messages with:

• Order number

• Photos/video of the issue

• Your desired solution

 

We promise:

• Response within 48 hours

• Replacement/refund before you leave feedback

• Free return shipping if our mistake

Warranty

⭐ HASSLE-FREE WARRANTY

• 90-365 Day Coverage (varies by product - see listing details)

❌ Exclusions:

• Physical damage (drops/accidents)

• Installation errors (YouTube tutorial links provided)

• Modified/tuned vehicles

 

⭐ Claim Process:

 1. Message us with video proof + order #

 2. Get prepaid return label (if approved)

 3. Choose: Replacement / Refund 

About us

Welcom to Topteng!

Topteng is a research and development, sales and service With a professional high tech enterprise based in Hongkong, and enjoying convenient transportation access. We specialized in developing and selling Motorcycle parts, such us Fairing,Windshield,Seat Cowl,Stator Coil ,Turn Signals,Crash bars,etc. So that we can provide customers with various types of high-quality products. 

More than 10 years rich experience and have professional production line.So have many positive feedback on eBay!  ✅ Shipping to Worldwide is FREE! 

At the same time,we have many warehouses around the world,such as in USA,UK,DE,AU and so on,ensuring that your parcels in the fastest shipping. 

Our primary mission is your 100% satisfaction with our products & service! 

We look forward to your positive feedback on our shop!

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