SPECIFICATIONS

Brand Name: M MATI

Origin: Mainland China

For ATV Brand/Model: Yamaha

Item Weight: 1.45 KG

Model Name: WBC011+WBC012+BS0006+K3

Manufacturer Part Number: 3HN259500000 3HN259600000

Manufacturer Part Number:-1: 3HN259800000

Condition: New

Manufacturer Part Number: 3HN-25950-00-00 3HN-25960-00-00 3HN-25980-00-00 3HN-25990-00-00 3HN-W2535-10-00 3HN-27282-00-00 3HN-W2535-00-00

Package Included:

Wheel Cylinder Left A ×1

Wheel Cylinder Left B ×1

Wheel Cylinder Right A ×1

Wheel Cylinder Right B ×1

Brake Shoe x 4

Brake Spring x 4

Shoe Clamp Spring x 4

Pin Tension x 4

Fit for following Yamaha ATV:

Big Bear 350 YFM350 1989-1998

1989 YFM350FW Big Bear 350 4x4

1990 YFM350FW Big Bear 350 4x4

1991 YFM350FW Big Bear 350 4x4

1992 YFM350FW Big Bear 350 4x4

1993 YFM350FW Big Bear 350 4x4

1994 YFM350FW Big Bear 350 4x4

1995 YFM350FW Big Bear 350 4x4

1996 YFM350FW Big Bear 350 4x4

1996 YFM350U Big Bear 350 2x4

1997 YFM350FW Big Bear 350 4x4

1997 YFM350U Big Bear 350 2x4

1998 YFM350FW Big Bear 350 4x4

1998 YFM350U Big Bear 350 2x4

Kodiak 400 YFM400 1993-1998

1993 YFM400F Kodiak 400 4x4

1994 YFM400F Kodiak 400 4x4

1995 YFM400F Kodiak 400 4x4

1996 YFM400F Kodiak 400 4x4

1997 YFM400F Kodiak 400 4x4

1998 YFM400F Kodiak 400 4x4

🛠️ Installation Tips 

• Complete Replacement: Because these ATVs use two cylinders per wheel, we strongly recommend replacing all 4 at once. Mixing old and new cylinders will cause uneven braking and pulling to one side.

• Bleeding Order is Key: These systems can be stubborn. Always start bleeding from the lower cylinder first, then move to the upper one. Ensure your master cylinder reservoir remains full to prevent sucking in more air.

• Shoe Orientation: Before removing the old shoes, take a photo. The springs and shoes must be installed in a specific orientation to allow the self-adjuster (if equipped) to work properly.

• Clean the Drum Surface: Use a heavy-duty brake cleaner and a wire brush to remove the "glaze" inside the brake drum. A smooth, clean surface ensures the new shoes grab effectively without squeaking.

• Lubricate Pivot Points: Apply a tiny amount of high-temp brake grease to the pivot pins where the shoes sit. DO NOT get any grease on the shoe lining or the drum surface.

🔍 Troubleshooting Guide: