Mazda RX-8 2004 Service Highlights page 228

MASTER CYLINDER CONSTRUCTION
• A plunger-type master cylinder with a 22.22 mm {0.875 in} bore has been adopted, improving durability.
Note
• Plunger type: A system where the cups are fixed on the cylinder, and the piston slides through the inner
perimeter of the cups.
• For vehicles with DSC, the master cylinder outlet pipe diameter has been increased, improving response during
DSC operation.
• Except for the reservoir, the master cylinder cannot be disassembled. Therefore, if there is any malfunction in
the interior of the master cylinder, replace the cylinder component without disassembling.
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POWER BRAKE UNIT CONSTRUCTION
• A 10-inch, large diameter, single diaphragm type
power brake unit has been adopted for all models,
achieving compatibility between high braking
performance and excellent brake feeling.
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FRONT BRAKE (DISC) CONSTRUCTION
Standard Suspension Specification Vehicles
• Ventilated disc type front brakes with a 303 mm {11.9 in} diameter and 24 mm {0.94 in} thickness have been
adopted.
Sport Suspension Specification Vehicles
• Large diameter, ventilated disc type front brakes with a 323 mm {12.7 in} diameter and 24 mm {0.94 in}
thickness have been adopted.
• The number of ribs in the ventilated plate have
been increased, improving fade resistance.
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CONVENTIONAL BRAKE SYSTEM
CYLINDER COMPONENT
CHU041143400S01
RESERVE TANK
04–11
CHU0411S003
CHU041143800S01
CHU0411S004
CHU041133980S01
BHJ0411N012
04–11–3