marddpair Master Cylinder Brake Kit for Arctic Cat vs M MATI Rear Brake Master Cylinder Kit for Arctic Cat ATV 400 500 650 2004-2005 0437-053

These are the same part: both are rear brake master cylinder kits for 2004-2005 Arctic Cat 400, 500 and 650 ATVs under part number 0437-053, and the M MATI listing even names marddpair as the manufacturer. The real difference is what comes in the box. The M MATI kit spells out a full hardware set: banjo bolt, copper washers, mounting and reservoir brackets, extension shaft, cap screws, a self-locking nut and cable ties. The marddpair listing describes new castings, pistons and springs with full testing but lists no hardware. For a rebuild where the old bolts and brackets are rusted or lost, the M MATI kit is the safer buy. If you only need the cylinder and will reuse your hardware, either works.

• Choose the marddpair kit if you want the master cylinder assembly itself and plan to reuse your existing bolts, brackets and washers.
• Choose the M MATI kit if you want the cylinder plus the banjo bolt, copper washers, brackets, shaft and fasteners in one box.