JAVIK Brake Master Cylinder for Polaris RZR, Ranger & General — Aluminum Direct-Fit (OEM#1911515)

JAVIK Brake Master Cylinder is a direct-fit aluminum replacement for select Polaris RZR, Ranger, General and Brutus models listed under OEM#1911515 and compatible replacement numbers.

If your Polaris vehicle shows soft brake pedal feel, fluid leaks, or diminished stopping response, fitting a correctly matched master cylinder restores hydraulic function and pedal firmness. This JAVIK unit is made from corrosion-resistant aluminum alloy, supplied as a single complete master cylinder, and cross-references several Polaris OEM numbers so you can match fitment confidently.

Which Polaris models will this master cylinder fit?

This master cylinder covers a wide range of Polaris side-by-sides and utility vehicles across multiple model years. Check the exact year and model against the fit list before ordering to ensure compatibility.

• Ranger series: models from Ranger 400 through Ranger XP 1000 (selected years 2007–2019)
• RZR lineup: includes RZR 570/800/900/1000 variants and multi-seat RZR 4/S/XP configurations
• ACE, Sportsman ACE, General 1000, Brutus and Brutus HD models within the specified model years

How does build quality affect braking performance?

Material and machining precision determine the durability and sealing performance of a master cylinder. Aluminum alloy provides strength with resistance to corrosion, helping maintain fluid integrity and piston movement over time.

• High-strength aluminum alloy body resists rust in wet or muddy conditions
• OEM-equivalent dimensions support correct piston travel and reservoir fit
• Factory-compatible ports and mounting points simplify installation and alignment

What installation and replacement details should I expect?

The JAVIK master cylinder ships as a single unit; basic mechanical skills and common hand tools are usually all that’s required for installation. Bleeding the brake system after fitting is necessary to remove air and restore pedal firmness.

• Package includes one brake master cylinder only; no manual included
• Designed as a direct replacement for OEM#1911515 and listed replacement OEM numbers
• Simple bolt-on installation for technicians or competent DIYers; brake bleeding required

What warranty and support come with this part?

JAVIK provides customer support and a limited warranty to back the purchase. If you encounter fitment issues or manufacturing defects, contact the seller for guidance and warranty service.

• 1-year limited warranty from JAVIK against manufacturing defects
• 24-hour customer service support for questions and troubleshooting
• Return or replacement handled per seller warranty terms

Who is this for: This master cylinder is intended for Polaris owners, mechanics and off-road service shops needing a dependable, OEM-referenced replacement for braking systems on RZR, Ranger, General, ACE and Brutus vehicles listed. It suits those who want an aluminum-bodied part with broad compatibility across many Polaris model years and the reassurance of warranty-backed support.