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3452653 XCMG GR2605 motor grader brake piston
- Applied to motor grader service brake and parking brake systems
- Compatible hydraulic pressure: 8–12 MPa
- Operating temperature: -40℃～180℃
- Compatible media: DOT3/DOT4 brake fluid, construction machinery special brake oil
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Product Details:
3452653 XCMG GR2605 motor grader brake piston
3452653 is a special brake piston for XCMG motor grader braking systems, a core component of hydraulic disc brakes. Manufactured via precision forging from high-carbon steel/alloy steel, with heat treatment and mirror polishing, it features high surface hardness, wear and corrosion resistance. It fits precisely with the caliper cylinder bore, transmitting hydraulic pressure to push brake pads against the rotor for deceleration and parking. Adapts to heavy-duty, high-frequency braking, dusty and muddy conditions, with dimensional accuracy and sealing performance strictly matching OEM standards.
Application Scenarios
Exclusively fits XCMG GR series motor graders (e.g., GR2605), installed inside wheel brake / service brake calipers, used with 3493583 brake hub.
- Applied to motor grader service brake and parking brake systems
- Compatible hydraulic pressure: 8–12 MPa
- Operating temperature: -40℃～180℃
- Compatible media: DOT3/DOT4 brake fluid, construction machinery special brake oil
- Suitable conditions: Heavy-duty, vibration, dusty and muddy environments in mines, construction sites, road building
Common Faults & Troubleshooting
- Brake sticking / non-retracting: Piston surface wear, rust, scoring, or seal aging → Replace 3452653 piston and seals, clean and polish cylinder bore
- Brake fluid leakage: Worn piston sealing surface, distorted cylinder bore → Replace piston, inspect caliper bore accuracy, repair by boring if needed
- Insufficient braking force: Uneven piston wear, seizure causing uneven thrust → Replace piston, correct installation, check guide pin lubrication
- Piston seizure: Contaminated brake fluid, debris in cylinder → Flush and replace brake fluid, clean brake system, install new piston
- Uneven pad wear: Misaligned piston, distorted caliper → Replace piston, straighten caliper housing, ensure concentricity
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1 3522993 output shaft assembly
2 3465463 half threaded bolt
3 3220773 baffle
4 71563 oil seal
5 72686 bearings
6 3493583 brake wheel hub
7 70967 screw plug
8 71590 breathable plug
9 71591 protective helmet
10 72633 sealing ring
11 71659 sealing ring
12 3452653 brake piston
13 3463393 bolt
14 3477083 sales
15 3477073 spring
16 3236623 spring sleeve
17 71638 Spring stop ring
18 72610 retaining ring
19 3350003 spline sleeve
20 71130 retaining ring
21 3349993 driven plate
22 3349983 active film
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