SKU: 48347011497

78mm 2004-2009 Honda CRF250R Stock Bore Cylinder Piston Top End Rebuild Kit 12100-KRN-670 12100-KRN-732

$107.79 $119.77
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Description

78mm 2004-2009 Honda CRF250R Stock Bore Cylinder Piston Top End Rebuild Kit 12100-KRN-670 12100-KRN-73278mm Stock Bore Cylinder Piston Gasket Top End Rebuild Kit Fit For Honda CRF250R 2004 2009 CRF250X 2004 2017 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, forged piston, rings, pin, clips & top end gasket kit (you get exactly what is pictured). Nickel Silicon Carbide plated for long life. Piston is anodized for

78mm Stock Bore Cylinder Piston Gasket Top End Rebuild Kit Fit For Honda CRF250R 2004-2009 CRF250X 2004-2017

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, forged piston, rings, pin, clips & top end gasket kit (you get exactly what is pictured).
Nickel Silicon Carbide plated for long life.
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 - 78.0 mm x 52.2 mm stroke, 16mm steel piston pin.
Compression Ratio: 12.9:1.
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: 249cc
Engine type: 4-Stroke
Bore Type: Standard Bore
Bore diameter: 78.00mm
Stroke: 52.2 mm
Pin diameter: 16mm
Pin Length: 40mm

Replacement Part Number:
Cylinder: 12100-KRN-670, 12100-KRN-732
Cylinder Base Gasket: 12191-KRN-731
Cylinder Head Gasket: 12251-KRN-671, 12251-KRN-731
Piston (Std): 13101-KRN-670, 13101-KRN-850
Pin, Piston: 13111-KRN-850
Piston Ring Set (Std): 13011-KRN-A10, 13011-KRN-850
Circlips, piston (2): 13115-KM7-700
Exhaust Gasket: 18291-KPS-900
Chain Tensioner Gasket: 14560-MEN-671

Fits Make/Model/Year:
Fit for Honda CRF250R 2004-2009
Fit for Honda CRF250X 2004-2017

(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 16mm Wristpin
1x Circlip(2)
1x Cylinder Base Gasket
1x Cylinder Head Gasket
1x Exhaust Gasket
1x Chain Tensioner Gasket

(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 problems24-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: 48347011497

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Product Reviews
C
Cheryl Belle
Belleville, US
★★★★★ 3
Thin, summer weight throw, quality could be better
Color: Southern Blues, Size: Throw (50 in x 60 in), Color: Southern Blues, Size: Throw (50 in x 60 in)
This is a very light weight blanket and the "fleece" is no where to be seen. The blanket looks like cotton but has a very synthetic feel to it. Three layers implies some weight but it is thin. The construction is sloppy, see images, where the stitching looks slap dash to the point where it cannot be reversed. I liked the color, the blue is a little on the aqua side but it is a very nice calming hue. The stitching is quilt like and nicely done. I noticed other reviews felt like it was a medium weight but the only time I would use this would be to use as a cover if the AC went out. To me, the blanket is decorative and not particularly useful.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 15, 2026
H
Hayden
Houston, US
★★★★★ 4
Average quality lightweight throw, not sold on the color
Color: Southern Blues, Size: Throw (50 in x 60 in), Color: Southern Blues, Size: Throw (50 in x 60 in)
This blanket is fairly soft and lightweight, and better suited for the summer months. I don't think the texture and "Southern Blues" color looks as nice in person as in the photos; less cozy and more like a spare blanket you might find in a hotel closet. Interestingly the care tag says that the outer faces are cotton, but the blanket feels polyester and the content tag indicates the same. The stitching and durability feel ok, and it will probably hold up for the occasional machine washing and low heat drying. Overall it's a fine warm season throw but not particularly notable. I would probably recommend one of the darker colors.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 23, 2026
C
circusdaze
Los Angeles, US
★★★★★ 5
So easy to wash!
Color: Southern Blues, Size: Full/Queen (90 in x 90 in), Color: Southern Blues, Size: Full/Queen (90 in x 90 in)
Two things I love about this coverlet: 1. It's so much easier to wash than a duvet! Or even a duvet cover or a regular blanket, for that matter. The queen-size coverlet fit easily in my washer, and I could have put in another if I had had one. It stayed loose and balanced in the machine - the washer didn't have to readjust its balance during the spin cycles. In the dryer, it didn't wad up into a ball that had to be shaken out every few minutes. It came out feeling softer and looking good, with no wrinkles. 2. It's thinner than a duvet and suitable for warm weather, yet those three stitched layers give it substance and weight that I find more comfortable than sleeping under a pile of fluff or a bed sheet. The soft pastel green color with cream lining (not really reversible due to the hem) is fresh and reminiscent of the 1950s coverlets that my grandmother made. Crocheting was one of her passions, and she'd create huge lacy doilies that lay across the foot of the coverlet. Very pretty look.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 1, 2026
C
Chimi
Natrona Heights, US
★★★★★ 5
Great summer blanket.
Color: Black, Size: Full/Queen (90 in x 90 in)
I purchased this Berkshire 3-layer fleece blanket, and it has quickly become my go-to for my queen size bed. It fits perfectly with plenty of overhang, making it look great as a top layer or a middle layer.What I love most is the breathability. While the material is technically fleece, the 3-layer design provides a nice "cotton-like" feel that doesn't feel heavy or stifling. I tend to sleep hot, and this blanket does a fantastic job of keeping me cool and comfortable through the night while still providing just enough cozy warmth.At this price point, the value is good. It feels much higher quality than other thermal blankets I’ve tried, and it holds up well in the wash without pilling or losing its softness. If you're looking for a versatile, lightweight blanket that works year-round, this is a solid choice. Highly recommended!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 9, 2026
S
Verified Purchase
Shlhbsn
Whiting, US
★★★★★ 5
Soft, Warm, lightweight, Cozy
Color: Cream, Size: Full/Queen
When I first received this blanket I washed it by itself in cold water with detergent. I did not use a fabric softener or a fabric sheet. I air dried it completely and then put it in my dryer on air fluff for 10 minutes. No shedding and it came out just like I received it. I was concerned about shedding with some of the reviews but I had no issues with that whatsoever. It's warm yet lightweight. I didn't want anything that would make me overly hot because I'm always hot anyway. It takes that cool edge off when you still want your overhead fan on. My daughter said she likes it better than the one she has. I can't remember the brand. I feel it has a good quality. Just make note to wash it as instructed and it'll hold up well and look just as nice as the way you bought it. I'm not sure how the other reviewers that didn't leave 5 stars washed there's, but it couldn't have been the correct way.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 20, 2025

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