Mati Powersports
All 4 Front & Rear Brake Wheel Cylinders for Kawasaki KAF300 Mule 500 520 550 1991-2004 43092-1057
All 4 Front & Rear Brake Wheel Cylinders for Kawasaki KAF300 Mule 500 520 550 1991-2004 43092-1057
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SPECIFICATIONS
Brand Name: M MATI
Origin: Mainland China
For ATV Brand/Model: Kawasaki
Manufacturer Part Number: 43092-1057, 43092-1058
Package Include:
2 x Front Brake Wheel Cylinder(left right same)
2 x Rear Brake Wheel Cylinder(left right same)
Condition: New
Compatible with following Kawasaki UTV:
Mule 500 - KAF300 1991 1993 1995
1991 Mule 500 - KAF300-A1
1993 Mule 500 - KAF300-B1
1995 Mule 500 - KAF300-B2
Mule 520 - KAF300 2000-2001
2000 Mule 520 - KAF300-D1
2001 Mule 520 - KAF300-D2
Mule 550 - KAF300 1997-2004
1997 Mule 550 - KAF300-C1
1998 Mule 550 - KAF300-C2
1999 Mule 550 - KAF300-C3
2000 Mule 550 - KAF300-C4
2001 Mule 550 - KAF300-C5
2003 Mule 550 - KAF300-C6
2004 Mule 550 - KAF300-C7
🛠️ Installation Tips
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Clean the Backing Plate: Before installing the new cylinders, use a wire brush and brake cleaner to remove all rust and old brake dust from the backing plate. This ensures the cylinder sits perfectly flush.
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Lubricate the Contact Points: Apply a very thin layer of high-temperature brake lubricant to the "pads" on the backing plate where the brake shoes slide. Do not get any grease on the shoe material or the drum surface.
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Flare Nut Wrench Usage: When disconnecting the old brake lines, always use a flares nut wrench (line wrench) to avoid rounding off the soft brass or steel fittings on the brake lines.
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Bleeding Sequence: Start bleeding the brakes at the wheel furthest from the master cylinder (usually the Rear Passenger side), then move to the Rear Driver side, Front Passenger, and finally the Front Driver side.
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Check the Master Cylinder: Ensure the master cylinder reservoir stays topped up with fresh DOT 3 or DOT 4 fluid throughout the bleeding process. If it runs dry, you will pull air into the system and have to start over.
🔍 Troubleshooting Guide
| Issue | Possible Cause | Solution |
| Spongy Brake Pedal | Air trapped in the lines or a cylinder. | Perform a full system bleed until no air bubbles appear in the clear bleeder hose. Check for a failing master cylinder if bleeding doesn't help. |
| Vehicle Pulls to One Side | One cylinder is seized or shoes are uneven. | Ensure all 4 cylinders are moving freely. A seized piston will prevent that specific wheel from braking, causing the vehicle to "swerve" toward the working side. |
| Brake Fluid Leaking at Wheel | Damaged cylinder seal or loose fitting. | Inspect the rubber boots on the new cylinders. If fluid is visible, the seal is compromised. Also, verify that the brake line flare nut is tight. |
| Brakes Dragging/Overheating | Improper shoe adjustment or weak springs. | Ensure the brake shoe return springs are in good condition and that the "star-wheel" adjuster is not set too tight. The drum should rotate with very slight resistance. |
| Pedal Goes to the Floor | Major leak or internal bypass. | Check all 4 wheels for fresh fluid leaks. If no leaks are found, the internal seals of your master cylinder may be bypassing fluid. |
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