When in Doubt Confirm Fitment
UltraMax Fender Extensions FOR Polaris Full Coverage Fender Flares – 2025-2026 RZR Pro XP – Requires Part #2890407
Product SKU - 90353
Sale price
$259.99
Will not fit 2020-2024 Pro XP, also will not fit 2025+ Stock Fenders on the Pro XP Models, must have Polaris Full Coverage Fender Flares Part Number 2890407 installed in order for these MudBusters to fit.
Coverage Comparison
Compare Coverage: You're viewing Ultra Max . Scroll to compare other options.
Max
Front Coverage
Above
4.75 in
Middle
4.5 in
Behind
3 in
Rear Coverage
Front
N/A
Above
1 in
Behind
7 in
Super Max
Front Coverage
Above
5.75 in
Middle
5.5 in
Behind
4 in
Rear Coverage
Front
N/A
Above
2 in
Behind
8 in
Ultra Max
Current
Front Coverage
Above
7.75 in
Middle
7.5 in
Behind
6 in
Rear Coverage
Front
N/A
Above
6 in
Behind
12 in
← Scroll to compare coverage options →
Available Options:
Max
→ Super Max
→ Ultra Max
Will not fit 2020-2024 Pro XP, also will not fit 2025+ Stock Fenders on the Pro XP Models, must have Polaris Full Coverage Fender Flares Part Number 2890407 installed in order for these MudBusters to fit.
Coverage Comparison
Compare Coverage Options: You're viewing the Ultra Max option. Compare all available coverage levels for the 2025-2026 Polaris RZR Pro XP OEM Fender Flares.
| Measurement Location | Max | Super Max |
Ultra Max
(Current Selection) |
|---|---|---|---|
| Front Coverage | |||
| Above the Front Tire | 4.75 in | 5.75 in | 7.75 in |
| Middle of Front Tire | 4.5 in | 5.5 in | 7.5 in |
| Behind Front Tire | 3 in | 4 in | 6 in |
| Rear Coverage | |||
| Front of Rear Tire | N/A | N/A | N/A |
| Above Rear Tire | 1 in | 2 in | 6 in |
| Behind the Rear Tire | 7 in | 8 in | 12 in |
Coverage Options:
Max
→ Super Max
→ Ultra Max
(from minimal to maximum protection). Click any option to view that product.
About these MudBusters
You've upgraded your 2025+ Polaris RZR Pro XP with Full-Coverage Fender Flares (Polaris Part Number 2890407) thinking that was the answer to your wider stance with 32s or 35s, but mud still finds its way through?
Here's the reality: bigger tires throw more spray. Heck, even at stock 64 inch width with stock 30s, she throws plenty of mud. OEM flares alone just don't cut it when you're serious about staying clean.
The Solution: These purpose-built Fender Extensions mount to those OEM flares to tame the mess and stand up to years of abuse. Spend more time tearing up trails and less time scraping off clumps.
USA Made & Built Right: Made in the USA from tough virgin HMWPE that laughs off rocks, mud, water, and debris. Smooth underside cleans up fast so you can get back out there.
Design: Engineered to perfectly match Polaris's OEM flare profile. Each kit includes hardware and detailed digital guide. Installation is straightforward, and this design keeps bigger tire guys in mind — still fits even if you trimmed that lower fender section (if you know, you know).
Peace of Mind: Our Lifetime Peace-of-Mind Warranty backs your gear with zero hassles. From design to delivery, everything happens under one roof for unmatched quality and support. Need help? Call or chat with us anytime.
Front Coverage Details
- 7.75 inches of extra coverage above your front tire
- 7.5 inches in the middle of your front fender
- 6 inches of additional coverage behind your front tire
Rear Coverage Details
- 6 inches above your rear tires
- 12 inches of extra coverage behind your rear tire
- 13.25 inches extending beyond your taillight
