Wilwood 16-21 Polaris RZR XP 4 Turbo Rear Kit 11.25in Drilled Rotors - Black
Can I pick up my order or have it installed at your shop?
Can I pick up my order or have it installed at your shop?
Absolutely. We offer local pickup on most products and full professional installation at our shop in Washington, MO. Whether you just want to grab your parts or have our techs handle the install, we’ve got you covered. Give us a quick call at 636-429-7020 or message us to schedule a visit — we’ll make sure the parts are ready when you arrive.
How do I know if this part fits my vehicle?
How do I know if this part fits my vehicle?
Unsure if it’ll fit? No problem — that’s what we’re here for. Send us your vehicle’s year, make, and model, and we’ll verify fitment before you order. We can also point you toward compatible upgrades or supporting parts if needed.
What if I need to return a product or it’s defective?
What if I need to return a product or it’s defective?
Most unused items can be returned within 30 days in their original packaging. Some products are covered by a manufacturer’s warranty as well. If something arrives damaged or doesn’t meet your expectations, just let us know — we’ll help you get it replaced, refunded, or repaired. (Tracking updates are also emailed automatically once your order ships.)
What's the lead time on custom or fabricated parts?
What's the lead time on custom or fabricated parts?
Many of our parts are built to order — especially fabricated or performance components. These can take additional time to produce before shipping. Lead times vary by manufacturer and demand, but we’ll always keep you updated along the way. If you’re working on a tight schedule, reach out before ordering at 636-429-7020 and we’ll confirm current availability or estimated ship dates.
Description
Description
Wilwood’s matched front and rear UTV brake kits feature dynamically-mounted rotors and upgraded calipers for popular side-by-side machines. Kits combine fixed mount multi-piston calipers with greater clamping force, and larger diameter floating rotors for more brake torque, improving braking on higher-powered UTVs. Forged aluminum differential-bore four and six piston calipers reduce deflection and provide more uniform engagement to increase braking force and improve feel. High-friction steel rotors, are up to 20% greater in diameter and thicker for less distortion. Dynamically mounted rotors reduce thermal stress and prevent piston knockback from rough terrain.
| Kit Summary | |
|---|---|
| Rear End Axle: | OEM |
| Axle Offset: | 0.00 |
| Mount Type: | Lug |
| Caliper Type: | 6 - Black Powder Coat |
| Rotor Diameter: | 11.25 |
| Min Wheel Diameter Req'd*: | 15 |
| Calipers | |
|---|---|
| Left Hand - Part No: | 120-17646-BK |
| Right Hand - Part No: | 120-17646-BK |
| Type: | UTV6 |
| Finish Color: | Black Powder Coat |
| Piston Count: | 6 |
| Piston 1 Bore (in): | 1.00 |
| Piston 2 Bore (in): | 1.00 |
| Piston 3 Bore (in): | 1.00 |
| Piston Area (In²): | 2.37 |
| Piston Type: | Stainless |
| Mount Type: | Lug |
| Brake Pad Plate: | 7812 |
| Brake Pad Area (In²): | 6.36 |
| Brake Pad Volume (In³): | 2.1 |
| Pad Compound: | BP-10 |
| Rotors | |
|---|---|
| Left Hand - Part No: | 160-16979 |
| Right Hand - Part No: | 160-16979 |
| Type: | Drilled Steel Rotor |
| Style: | Drilled |
| Surface Finish: | Black Electro Coat |
| Material: | Steel |
| Outside Diameter (in): | 11.25 |
| Width (in): | 0.25 |
| Vane Count: | Solid |
| Design Type: | Solid |
| Burnished: | No |
| Dynamically Balanced: | No |
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