SKU: 55479111715

1976-1978 Honda XL 125 Cylinder Barrel Piston Kit 12100-383-030 12191-330-306

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Description

1976-1978 Honda XL 125 Cylinder Barrel Piston Kit 12100-383-030 12191-330-30656. 5mm Cylinder Piston Gasket Top End Rebuild Kit For Honda CB125S CL125S SL125 XL125 TL125 CT125 Features: 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, piston, rings, pin, clips & top end gasket kit (you get exactly what is pictured). The cylinder is made of aluminum for good cooling with an internal cast iron jacket (unlike

56.5mm Cylinder Piston Gasket Top End Rebuild Kit For Honda CB125S CL125S SL125 XL125 TL125 CT125

Features:
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, piston, rings, pin, clips & top end gasket kit (you get exactly what is pictured).
The cylinder is made of aluminum for good cooling with an internal cast iron jacket (unlike which has a nicasil treatment).
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 - 56.5 mm, 15mm 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, Steel
Displacement: 124cc
Bore Type: Standard Bore
Bore diameter: 56.5mm
Pin diameter: 15mm
Pin Overall Length: 48mm

Replacement Part Number:
Cylinder: 12100-383-030
Cylinder Base Gasket: 12191-330-306
Cylinder Head Gasket: 12251-437-P00
Piston: 13101-383-030
Pin, Piston: 13111-440-000
Piston Ring Set (Std): 13011-383-621
Circlips, piston (2): 94601-15000

Always compare part numbers to your parts schematics and cross reference appropriately.

Fits Make/Model/Year:
Fit for Honda CB 125 S (1976-1985)
Fit for Honda CT 125 (1979-1983)
Fit for Honda CL 125 S (1973-1974)
Fit for Honda SL 125 (1971-1974)
Fit for Honda TL 125 (1973-1988)
Fit for Honda XL 125 (1976-1978)
Fit for Honda XL 125 S (1979-1987)

In 1976, Honda implemented significant modifications to the 125s cylinder head assembly, transitioning from a single-unit design to a two-piece configuration.
While retaining the cylinder's fundamental architecture, engineers enlarged the bore diameter from 56mm to 56.5mm, resulting in increased displacement from 122cc to 124cc.
This revised 56.5mm cylinder assembly, introduced with the 1976 model year updates, maintains complete compatibility with earlier 125s motorcycles despite these technical enhancements.

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

Package Includes:
1x 56.5mm Cylinder
1x Piston
1x Piston Ring Set
1x 15mm Wristpin
1x Circlip(2)
1x Cylinder Base Gasket
1x Cylinder Head Gasket
2x Valve Stem Seals

(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: 55479111715

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4.5 ★★★★★
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SainteD
Lowell, US
★★★★★ 3
Good size but pee leaks through :(
Size: X-Large, Style: 40 Count, Size: X-Large, Style: 40 Count
I have a 13-14 year old dog who is starting to have very frequent accidents in the house despite us taking her outside every couple of hours, she just drinks too much water which doesn’t mesh well with her weakening, old bladder. She tends to have an accident in two areas (the kitchen and right by the front door hallway) so we decided to buy some puppy pads to minimize the mess & aid in cleanup since clearly taking her outside every couple frequently isn’t helping reduce accidents. We chose these because of the size & price, which are both fantastic compared to others. It perfectly fits the two areas she tends to go so we only need to use one per area and to our surprise, she still remembers how to use puppy pads so she adapted quickly. But unfortunately, these don’t hold all of her pee as they are very thin. I just cleaned up the kitchen puppy pad and saw moisture under the pee spot on the pad. So while it does dramatically reduce how much we need to clean up (we were using one paper towel roll every 3 days just for her accidents), we still need to wipe down the floor with pet accident cleaning spray & mop. It’s not that big of an issue but it is still a bit frustrating that they don’t hold fluid well. So keep that in mind if you decide to order these, that you might still need to wipe down the floor under where your puppy/dog pees. We’ll be trying a different brand when we run out of these to see if that’s any better.
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Reviewed in the United States on February 18, 2026
M
Verified Purchase
Michele Martinez
Dallas, US
★★★★★ 5
Great buy
Size: Giant, Style: 40 Count
These pads are great. Absorbent and leak resistant. Very roomy for my chihuahua to turn in her inconsistent circles before and durable enough for her to "dig" after without ripping or bunching up.
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Reviewed in the United States on May 21, 2026
C
Verified Purchase
CathP
Charlottesville, US
★★★★★ 5
Brilliant fun for dog, except for...
I have a 3yo German Shepherd Dog (GSD) and he can be very hard on toys. On days 1 and 2 he had such fun and we laughed at his good times! Then...Day 3...cue the Jaws Music... While I was away for 10 minutes, he dismantled the ball into tiny pieces! Even so, the ball continued to light up, make sounds and entertain my GSD!! Coolest dog toy ever! If you have a heavy chewer....watch out! Otherwise, I highly recommend!!
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Reviewed in the United States on December 28, 2024
A
Verified Purchase
Ahmadi Murrell
Draper, US
★★★★★ 1
Disappointing Dog Toy – Short-Lived and Ineffective
I purchased this dog toy hoping it would keep my dog entertained and engaged, but unfortunately, it has been a huge disappointment. The first one I received only worked for about an hour before completely stopping. I decided to give it another chance and ordered a second one, hoping it was just a fluke. Unfortunately, the second one lasted even shorter—only 30 minutes—before completely ceasing to function. It no longer vibrates, rotates, or interacts in any way. Even when fully charged, the toy barely lights up and doesn’t do anything useful. This is a terrible product, and I’m genuinely shocked by the positive reviews. Save your money—this toy is not worth it.
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Reviewed in the United States on January 5, 2025
K
Verified Purchase
Kristi D.
Battle Creek, US
★★★★★ 4
My dog loves it
My Aussie loves it and he is a tough chewer as well, so it goes great with his hyper reactive personality. Durability could have been a little better, sometimes I have to take it apart and make sure it’s still in a good position because my dog will pick it up and drop it. With no cushion it did start malfunctioning at about 2 weeks. However, it does still work fine and he loves it even without the movement. Note if you put it in a sock to protect it, my dog goes dangerous and held the sock and created a slingshot lol.
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Reviewed in the United States on January 1, 2025

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