M MATI Rear Brake Caliper Assembly for Polaris Sportsman 400-800 with Pads — OEM Fit, Alloy Piston

M MATI Rear Brake Master Caliper Assembly with pads is a direct-fit replacement for select Polaris Sportsman and Forest 6x6 models, built to OEM specifications for bolt-on installation.

If your Polaris ATV needs a rear caliper replacement, this M MATI assembly (Manufacturer Part #1911075, Replacement #1910690) delivers a complete braking unit including pads and the correct mounting bracket. It’s designed to match the original fit and thread standards so you can install it without modifying the brake system. The unit uses a precise alloy piston and anti-ageing seals to preserve braking performance and extend service life.

Which Polaris models does this caliper work with?

This caliper assembly fits a range of Sportsman and certain Forest 6x6 models across multiple years. It covers rear applications on most standard single- and two-seat Sportsman variants and specific 6x6 positions where noted.

• Sportsman 400: 2003–2005
• Sportsman 450: 2006–2007
• Sportsman 500: 2003–2009 (excludes 6x6, X2, Touring)
• Sportsman 600: 2003–2005
• Sportsman 700: 2003–2007 and 700 Military 2010
• Sportsman 800: 2005–2009 (excludes X2, Touring); 800 6x6: 2009–2014 (rear left/right/middle right)
• Sportsman MV7: 2005; Forest 800 6x6: 2015 (rear left/right/middle right)

How does this assembly simplify installation and maintenance?

The M MATI caliper arrives as a complete assembly including brake pads and the correct mounting bracket, so you won’t need custom adapters or thread changes. Because it follows American standard thread and OEM dimensions, it typically installs directly in place of the original part without adjustments.

• Preassembled with pads for one-step replacement
• Exact mounting bracket matching factory threads
• No need for additional bracket machining or adapters
• Seals and piston preinstalled to minimize bench work

What materials and features improve durability and braking feel?

This caliper uses a precision alloy piston that resists corrosion and maintains smoother travel under load. An anti-ageing seal kit helps preserve seal elasticity over time, reducing leaks and maintaining consistent feel and braking force.

• Precision alloy piston for consistent performance
• Anti-ageing seals to reduce creep and fluid loss
• Factory-matched pad set for predictable bite and wear
• Built to OEM specs to maintain original brake geometry

What warranty or support comes with the part?

M MATI provides product support for issues that arise within the first year after purchase. If you encounter a manufacturing defect or fitment concern, contact their support to arrange troubleshooting or a replacement per the seller’s service policy.

• 1-year product service support from the seller
• Contact channel available for fitment or defect resolution
• Replacement or guidance provided when covered

Who is this for: This caliper assembly is aimed at Polaris owners, DIY mechanics and service shops replacing rear brake hardware on compatible Sportsman and Forest 6x6 ATVs. It’s especially useful when you want a direct-fit OEM-spec replacement with pads included to minimize downtime and restore reliable stopping performance.