SKU: 9943313542

UNI Multi-Stage Air Filter - NU-8503ST - Polaris Quads 325-800cc

$34.16 $37.95
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Ships within 48 hours · Estimated delivery Aug 10 - Aug 15

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Description

UNI Multi-Stage Air Filter - NU-8503ST - Polaris Quads 325-800ccUNI MULTI STAGE COMPETITION AIR FILTER For over 50 years, Uni Filter Dirt Bike Foam Air Filters have been unsurpassed in both engine protection and overall performance. And their unique two stage design produces MORE HORSEPOWER and MORE TORQUE than any other air filter. FITMENT: 2012 2014 Hawkeye 400 HO 2X4 2000 Magnum 325 2X4 1999 2002 Magnum 500 2001 2002 Scrambler 500 2X4 1999 2011 Scrambler 500 4X4 1996 1999 Sport 400L 2008 2010 Sportsman 300 4x4

UNI MULTI-STAGE COMPETITION AIR FILTER

For over 50 years, Uni Filter Dirt Bike Foam Air Filters have been unsurpassed in both engine protection and overall performance. And their unique two-stage design produces MORE HORSEPOWER and MORE TORQUE than any other air filter.

FITMENT:

2012-2014 Hawkeye 400 HO 2X4
2000 Magnum 325 2X4
1999-2002 Magnum 500
2001-2002 Scrambler 500 2X4
1999-2011 Scrambler 500 4X4
1996-1999 Sport 400L
2008-2010 Sportsman 300 4x4
1998-2000 Sportsman 335
1996-2005 Sportsman 400 4X4
2008-2014 Sportsman 400 HO 2X4
1997 Sportsman 400L 4x4
2006-2007 Sportsman 450
2016-2020 Sportsman 450 HO
2016-2020 Sportsman 450 HO EPS
1996-2000 Sportsman 500 4X4
2007 Sportsman 500 Deluxe
2006-2009 Sportsman 500 Efi
2001-2013 Sportsman 500 HO 2X4
2001 Sportsman 500 HO RSE
1999-2000 Sportsman 500 Rse 4x4
2010-2012 Sportsman 550
2014-2020 Sportsman 570
2016-2018 Sportsman 570 EFI HD
2014-2020 Sportsman 570 EPS
2016-2019 Sportsman 570 SP
2003-2005 Sportsman 600 4x4
2000-2008 Sportsman 6X6 500
2017-2020 Sportsman 6X6 570 EPS
2002-2006 Sportsman 700 4x4
2004-2007 Sportsman 700 Efi 4x4
2005 Sportsman 700 Mv7 4x4
2005-2014 Sportsman 800 EFI
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: 9943313542

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4.4 ★★★★★
Based on 13 reviews
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Product Reviews
A
Verified Purchase
Amazon Customer
Cuba, US
★★★★★ 5
My dogs favorite toy EVER
Color: Crinkle Chicken (Brown), Size: Large
I have a Belgian Malinois who loves any and every toy, but this one is definitely her favorite. She will walk around the house constantly carrying it in her mouth, which is honestly adorable to watch. The squeakers only lasted a couple of months, but I don’t really consider that a downside—I’m kind of grateful they didn’t last forever given how much she plays with it. It still remains one of her most-loved toys even without them. My only word of caution is that if you work from home, this toy makes a lot of crinkling noise. And I mean A LOT. It’s great for keeping the dog entertained, but it can definitely get a little frustrating for humans trying to focus or take calls. Overall, it’s been a big hit in our house and easily one of her favorite toys.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 8, 2026
A
Verified Purchase
Amazon Customer
Natrona Heights, US
★★★★★ 5
Super cute
Color: Bunny (Mauve), Size: Small
Super cute and fuzzy. Definitely perfect size for a puppy and not too loud. The fur is very soft and the nose is sown on not a hard piece that can be chewed on. Very good quality too.
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Reviewed in the United States on June 3, 2026
B
Verified Purchase
Buyer
Waukegan, US
★★★★★ 4
Normally amazing
Color: Spiky Ball (Blue, Orange), Size: Medium
We have purchased these slightly spiky dog balls several times for our very strong jaw heavy chewer dogs and they’ve been amazing. They don’t break down they don’t get torn apart the squeakers don’t even pop out of them. So we ordered another package because we’ve lost a few outside to the lawnmower… oops and the package that got delivered today had only one ball that squeaks and the other does not. THIS IS A PROBLEM ! Unfortunately my female dog got to the new squeaking ball first and my male got to the non-squeaking ball and he was NOT happy. Basically once they claim a ball it’s theirs and the other dogs don’t go near the ball they claimed. So he’s following my female around and every time she squeaks the ball and I’m just waiting for him to attempt to take it from her causing damage to her. Normally… These are amazingly fun, tough, durable but also squeaking balls (that’s rare in a tough ball) that my dogs absolutely love. This time just got a bad batch I guess. When they squeak the dogs LOVE them. After several months of play the squeaker might break inside of the ball but the ball never comes apart or gets damaged. And we as the owners love that they don’t break down are not able to be ripped or torn even by our very strong jawed and big jaw muscle dogs. They are also great for in the house play because they’re small enough that they fit completely inside our dog‘s mouth but obviously not small enough to get swallowed so when we throw them in the house for fetch the dogs can jump up and catch them fully in their mouth so they don’t cause any damage to the walls when they hit the walls. They’re not super heavy but they’re incredibly durable. Definitely worth the price especially if you have heavy chewers or big jaw muscle dogs.
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Reviewed in the United States on April 28, 2026
M
Verified Purchase
MADDY
Battle Creek, US
★★★★★ 5
Best fun indestructible toy
Color: Crinkle Duck (Yellow), Size: Large
Truly indestructible no matter how much our oittie tries. She has owned it for three months works at destroying every day with no success. She carries it everywhere. Best purchase for chewer, more fun than the popular rubber heavy duty toy. Do not hesitate your pup will thank you for this fun distraction.
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Reviewed in the United States on May 30, 2026
P
Verified Purchase
peter contino
Waukegan, US
★★★★★ 5
My dog loves this toy!
Color: Bunny (Gray), Size: Large, Color: Bunny (Gray), Size: Large
High quality, big toy, perfect for a medium to large size dog. After a few months of serious chewing I had to buy another one, but well worth the money! Rocky loves it.
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Reviewed in the United States on June 11, 2026

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