CATBrake Parts

2003252 Motor Gp-Piston — Cat 385B 385C

This is a CAT Motor Gp-Piston, a critical component within the braking system that converts hydraulic pressure into mechanical force to actuate the brakes. It is manufactured to meet stringent OEM quality standards, ensuring superior performance and durability compared to worn or damaged units. Operators may notice a spongy brake pedal, reduced braking effectiveness, or audible leaks if this component fails.

Motor Gp-Piston – Part No 2003252 – CAT Spare Part
Part Specifications
BrandCAT
CategoryBrake Parts
ConditionAftermarket — OEM Specification
DispatchSame-day from Mumbai (before 3 PM IST)
GST InvoiceAvailable — all orders
Export DocsCommercial invoice, packing list, COO

Compatible Models

Always verify with serial number before ordering.

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Installation & Application Notes

Always replace brakes in axle sets. Bed-in new brake pads with 8–10 moderate stops from 40 km/h. Check disc runout with a dial gauge — maximum 0.1 mm. Inspect caliper slides and pistons when replacing pads.

Always consult the OEM service manual for model-specific torque values and procedures. WhatsApp our technical team if you need fitment guidance.

Part TypeHydraulic Piston Motor Group
MaterialHardened Steel Alloy
ApplicationBrake Actuation System
Service LifeReplace as needed based on inspection
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

Initial signs of failure may include a gradual decrease in braking force or a spongy feel in the brake pedal. If ignored, the braking system's responsiveness will continue to degrade, potentially leading to extended stopping distances. Continued operation with a failing piston motor group significantly compromises the machine's ability to stop safely.

Installation Tip

Ensure the hydraulic system is properly flushed and free of contaminants before installation to prevent premature wear. Avoid overtightening mounting bolts, as this can distort the housing and cause internal damage.

Service Note

Inspect brake fluid levels and condition, as well as associated hydraulic lines and seals, during replacement.