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Ships within 48 hours · Estimated delivery Oct 4 - Oct 9
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Description
Wossner Pro Series Piston Kit - 8942DB Yamaha YZ 250 / WR 250 2016-2019Features Enhanced piston pin oiling slots, radial boss machining, and annular grooves for improved wrist pin lubrication Lightweight piston with a tight piston wall clearance for a quieter running engine Skirt coated for reduced friction and improved break in performance Ring land treatment for improved ring seal and oil control Double bridged forging design where noted Kit includes piston, rings, wrist pin and pin locks Specs Bore Oversize +0. 01 mm
Features
- Enhanced piston pin oiling slots, radial boss machining, and annular grooves for improved wrist pin lubrication
- Lightweight piston with a tight piston wall clearance for a quieter running engine
- Skirt coated for reduced friction and improved break in performance
- Ring land treatment for improved ring seal and oil control
- Double bridged forging design where noted
- Kit includes piston, rings, wrist pin and pin locks
Specs
| Bore - Oversize | +0.01 mm |
| Stroke Length | 53.60 mm |
| Style | Standard Size B |
| Units | Kit |
| Bore - Oversize | +0,01 mm |
| Piston Material | Forged |
| Riding Style | Off-Road |
| Compression Ratio | 13.7:1 |
| Engine Type | 4-Stroke |
| Piston Material | Aluminum Alloy |
| Piston Size | 76.96 mm |
| Bore Size | 77.01 mm |
| Model | Pro Series |
| Product Name | Piston Kit |
Part Notes
- Double bridge forging.
- Two ring design.
- Kit Includes:
- • Piston #8942DB
- • Ring Set #RIK77.00D
- • Wrist Pin #WP070-SP
- • Retaining Clips #CW16
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.2 ★★★★★
Based on 9 reviews
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Product Reviews
★★★★★ 5
Great trial set. Just be careful throwing the orange one!
Style: Assorted Balls (Pack of 3), Size: 2.5 inch
Blue isn't that easy to see in the yard
White charges with bright light/UV and is truly a game changer for night-time fetch. Both dogs clearly favor it.
Orange is easy to see in the grass at day
They're 3 different weights as well, so double trial. I prefer medium for my big dogs, though light performs well too
The orange is HEAVY and unyielding. Do NOT throw it with a ball thrower. It could damage your house or knock your dog out. Seems tough though.
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Reviewed in the United States on January 16, 2026
★★★★★ 3
Not as good as chuck it anymore
Style: Fetch Balls (Pack of 10), Size: 2.5 inch
I have bought these before and the where just like the chuck it balls. These are not those balls. The are lighter and my dog has already cause damage to one
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Reviewed in the United States on March 16, 2026
★★★★★ 5
Love this set!!!
Size: Medium (2.5"), Style: Fetch Pack 1
I was trying to figure out which of the many different balls this company offers, and I was getting frustrated but then i was SOOOO happy to see they had multiple sets that had multiple of the different balls they offer!! I bought this set and the other set they offer, but this one was my favorite and I think my dogs too! The orange ball works great and bounces just high enough that it doesn’t clear our patio wall, but enough for him to go and jump up to retrieve. But the glow in the dark ball is his favorite! Both me and my pomsky were blown away how we brought the glow in the dark ball outside just as the sun was going down, and when we brought it back inside it was BRIGHT AND GLOWY!!! Even with the sun going down and not much light left!! He loves to play with it in the house after it’s all glowy from the sun. Sometimes we even glow it up under a light inside the house if it’s dark outside, and he will play with it outside in the dark haha he loves it!!! And I think it’s pretty cool too!! All of the balls this company overs are VERY durable! We realized early on that we cannot give our dog regular tennis balls cuz his favorite thing to do is tear the outside fabric off!! So we were trying to figure out what company has the best balls for dogs so they can’t sit there and try to pry them apart, and we found this company!! We have already bought from them about 3 times and all of their balls are durable and bounce how they say they will bounce!! They have the super bouncers and the glow in the dark one and the one with angles that will bounce in different directions and the ones you can throw REALLYY far! Overall, all the balls from this company are very durable, bounce really good, and keep my dog occupied without allowing him to sit there and tear it apart!!! Which i love cuz I do not like when he stops playing with us to sit there and try to take off the fabric, cuz then he could swallow it! So always buy the balls from this company!!! They are the best and most durable!!!! Also plenty soft for your dogs mouth so they can chew on it a bit and it won’t hurt their teeth/gums!
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Reviewed in the United States on July 28, 2024
★★★★★ 5
Good sturdy balls
Size: Medium (2.5"), Style: Fetch Pack 2
My dogs love balls! Unfortunately, they tend to chew them up very quickly. My Belgium Malinois chews on this all the time, and it has held up pretty well. Good option for chewers
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Reviewed in the United States on May 17, 2026
★★★★★ 5
Fetch Perfection
Size: Medium (2.5"), Style: Fetch Pack 2
If you’re anything like me, fetch is the ultimate game with your furry companion. The Chuckit! Dog Fetch Ball Medley has taken our playtime to the next level with its variety and durability. This 3-pack of medium-sized, ultra-rugged balls is perfect for endless games of fetch without worrying about wear and tear.
I love how each ball has a unique texture and color, keeping my dog engaged and excited every time. The medium size is just right for energetic dogs, allowing for long throws and big leaps. Plus, the rugged design means these balls can withstand even the most enthusiastic chewers and rough play sessions, making them a great investment for active pets.
However, the vibrant colors can sometimes make them easy to lose in green grass or sandy beaches, but a good game of hide-and-seek with your dog is a small price to pay for such fantastic fetch balls. Additionally, while they’re durable, no ball is completely indestructible, so occasional replacements might be necessary for the most aggressive players.
Overall, the Chuckit! Dog Fetch Ball Medley is a must-have for any dog owner looking to enhance their playtime. They’re fun, durable, and keep both you and your dog entertained for hours. A solid 5-star rating for their quality and variety, with a tiny star lost to their occasionally elusive colors.
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Reviewed in the United States on October 23, 2024