SKU: 48347011497

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

Sale price$107.79 Regular price$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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4.3 ★★★★★
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Verified Purchase
Book Junkie
Houston, US
★★★★★ 5
Best dog ball in the world!
Size: Large, Pattern Name: Pack of 1, Size: Large, Pattern Name: Pack of 1
My dog is singularly obsessed with playing ball. He would drop a steak to chase a ball. (He'd return to the steak, but not without the retrieved ball. He's not an idiot.) He makes dangerous leaps, crashes into trees, and runs fast enough to catch thrown balls before they even hit the ground. Since he doesn't care about his own wellbeing, it's my job to protect him as much as I can. And a lot of balls are hard enough to cause him pain or dental damage when he mistimes a catch. Enter the ChuckIt Glow Ball! The minute Cowboy got his first Glow Ball, he no longer had any interest in the dozens of tennis balls scattered around the house and yard. If I took the Glow Ball away and instead threw a tennis ball, Cowboy would run to retrieve the ball, then return without it and begin looking all over the house for the Glow Ball. The Glow Ball is tough enough to survive Cowboy's big, sharp chompers, yet it's soft enough to do no harm when it hits him in the face. The glow feature is a huge bonus, too. Cowboy gets distracted by chipmunks and squirrels when we're playing, so he sometimes can't remember where he dropped the ball to pursue the interloper. If the ball was exposed to enough light before it was misplaced, it will be easy to find once the sun goes down. (Otherwise, Cowboy always finds it eventually.) When I'm feeling nocturnal, I'll put the ball under a light for a few minutes to activate the electrons, then treat my boy to a middle-of-the-night game of fetch. I was so happy to see these on sale, I bought a lifetime supply for my pantry. The size guide seems accurate. ChuckIt recommended the large size for a dog of Cowboy's weight and that size is perfect. Highly recommended product.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 14, 2024
J
Verified Purchase
Jamie B
Grantham, US
★★★★★ 5
Durable , dogs love them !
Size: 2 Count (Pack of 1), Style: Pack of 2, Size: 2 Count (Pack of 1), Style: Pack of 2
These chuck it balls are a fan favorite of my own dogs and my foster pups . So much so I have sent my foster home with them when they go to their new families! I seriously need an endless supply !
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 30, 2026
L
Verified Purchase
Lexie
Grantham, US
★★★★★ 5
Whistles when thrown
Size: 2 Count (Pack of 1), Style: Pack of 2
One of my shepherd’s favorites! Truly does whistle when you throw it! Good quality!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 25, 2026
C
Verified Purchase
Chris Hoekstra
Massapequa, US
★★★★★ 5
Whistle away my friend!
Size: 2 Count (Pack of 1), Style: Pack of 2
Love it! My dog loves it! The people at the dog park love it! The whistle is the best thing about these balls but the hard durable rubber and the denseness of the ball really make it fly. Let me quickly breakdown each of these: First the sound is like a...well, whistle coming from a human but oscillating and slightly different. It helps the dogs track where it goes and helps them find it better when it is getting dark (while flying of course, not when it is stationary). It barely makes a sound when throwing it with the wind but really howls when throwing it into the wind. This is why you get this ball and most everyone at the dog park perks up and wonders what that is, asks about it, and thinks it is very cool; which it is! Next is the durable rubber which doesn't have a single bite mark or split yet in 4 months of constant daily play for about 1 1/2 hours every day! The dog chews it as he brings it back and other dogs steal the ball and run with it while "killing" it perpetually and it has held up great. I don't claim this is going to be Kong ball durable but it is very well chosen rubber. Last is the denseness of the ball which really makes to go far in a chuckit launcher. One doesn't really notice how far this goes until going back to a tennis ball and realizing how short a tennis ball goes compared to this. The whistler ball, and presumably other chuckit rubber balls (glow, irregular bounce), go 30-40% farther when I throw then using the longest chuckit thrower. This is excellent and wears my retriever out even faster; not to mention the rippling muscles he has from sprinting that whole way! Overall I got both ball several months ago and we started with the blue ball and haven't had to touch the orange one yet. This is his goto ball at the park and it is the most popular ball, bar none, for all the dogs to steal. The bright blue aspect, the rubber aspect, the sound, and exclusivity of it make it coveted by dogs and owners. I might be gushing and glowing over this ball a bit much but I tend to do that when something unexpected ends up being part of your everyday life and blows you away at how wonderful it is.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 20, 2012
M
Verified Purchase
Murzeig
Fort Morgan, US
★★★★★ 5
Great for dogs that are chewers
Size: 2 Count (Pack of 1), Style: Pack of 2
These are wonderful for our dog. The bright colors help us find them when our dog can't. The size is perfect to play fetch. Our dog will chew on it a bit and it stays together and does not fall apart. That is a big bonus because our dog is a chewer!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 4, 2026

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