Skip to content

K&N Filter 4 inch Flange 6 3/4 inch OD Base 5 7/8 inch OD Top 9 1/2 inch Height

Marsoni M251S
Sale price$83.99
Pay 4 payments of $21.00 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
K&N Filter 4 inch Flange 6 3/4 inch OD Base 5 7/8 inch OD Top 9 1/2 inch HeightSKU: RU 5045 UPC: 024844101556 K&N Filter 4 inch Flange 6 3 4 inch OD Base 5 7 8 inch OD Top 9 1 2 inch Height RU 5045 K&N RU 5045 is a round tapered universal clamp on air filter designed for racing vehicles generators snowmobiles tractors and 2007 2009 Toyota Tundra Sequoia models. Constructed with strong molded rubber flanges that stretch up to 1 16 inch for secure fit this washable reusable filter traps contaminants while increasing airflow for
Easy Shipping

Quick Dispatch:

Your K&N Filter 4 inch Flange 6 3/4 inch OD Base 5 7/8 inch OD Top 9 1/2 inch Height orders ship within 1-2 business days.

Delivery Options:

  • Standard: 3-7 business days
  • Fast: 2-3 business days
  • Express: 1-2 business days

Order Tracking:

You'll receive a tracking link by email once your K&N Filter 4 inch Flange 6 3/4 inch OD Base 5 7/8 inch OD Top 9 1/2 inch Height ships.

Need Help?
Questions about K&N Filter 4 inch Flange 6 3/4 inch OD Base 5 7/8 inch OD Top 9 1/2 inch Height, sizing, or delivery? We're just an email away.

Live Shipping Estimates:
Enter your location at checkout to see available shipping methods and costs for K&N Filter 4 inch Flange 6 3/4 inch OD Base 5 7/8 inch OD Top 9 1/2 inch Height in your area.

Get Shipping Estimates

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
4.6 ★★★★★
Based on 146 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
K
Verified Purchase
Karen
Chelsea, US
★★★★★ 5
Durable
Color: S6-muti-color
The balls are great for chewers. The squeaky didn’t last long but they are perfect for the ball launcher.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 18, 2026
C
Verified Purchase
Candice K
Boise, US
★★★★★ 4
The squeeker isn't durable, but the balls themselves are.
Color: S6-muti-color, Color: S6-muti-color
I have two 70+lb, ball obsessed dogs (a field bred Golden Retriever, and an Old Time Scotch Collie), and these balls are living up to the abuse they're receiving. In the fall we always lose a ball or two in the yard due to getting lost in leaves or longer grass, so I always try and buy a multi pack at the start of the season, so went with these this year. I'm glad I did. Great price for a 6 pack, they fit the medium Chuck-It launcher (a little loosely, but they throw just fine), have great bounce, they FLOAT (which means I didn't lose any at the beach), and they're super durable to the dreaded "mouth squish." The squeaker dies pretty quick, like, within a day, but it isn't the kind that can fall out or choke your dog, so no worries there. The boys are happy, I'm happy, my wallet is happy - I've already ordered another pack.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 2, 2024
S
Verified Purchase
S. Berg
Pawtucket, US
★★★★★ 5
Good balls
Color: S6-glow
My dog is a chewer, and these have held up for close to a year actually a pretty good product
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 27, 2026
N
Verified Purchase
nanny america
Battle Creek, US
★★★★★ 3
Disappointed
Color: S6-muti-color
These were great for about 20 minutes then they stopped squeaking...we have 2 left that I have saved but the other 4 do not squeak anymore...disappointed as my dog loves to squeak things...would not buy these again...My dog is only an 8lb dog too...but he can still play with the balls without the squeak...
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 26, 2026
J
Verified Purchase
joymom
Lexington, US
★★★★★ 5
Great Value for a ball my dog loves!
Color: S6-muti-color
I wish these ball were in the subscription program! My dog gets sooo excited by the new ball, but her interest in things lasts for a few days. She kills the squeak within 11minutes, but the squeaker stays in place rather than becoming a chocking or swallow hazard, and she still loves to chew it. Next, we must throw the ball approximately 723 times the first day, possibly 496 times on day 2, and just 3- 4 on day 3, at which point she will chase the ball before hollering "it's over here if you need it," while she checks on the chipmunk den. We currently have 17 of these balls in our yard (because we have given several leftovers to a less discriminating doodle next door). These balls hold up really well, get her extremely active for the first couple of days, and are a much cheaper than doggie daycare (after an active morning with a new ball, she is happy to chew on it and sleep much of the day). I always have these on hand!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 22, 2025

recommand products