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Verified OEM Direct-Fit 58.73mm Bore Grey Cast Iron replacement brake wheel cylinder for HINO EF750 and 500 Series trucks.
Product Overview
This Brake Wheel Cylinder is a verified direct-fit replacement for HINO trucks, with OEM numbers 47550-1630 / 475501630 and a bore diameter of 58.73mm (2-5/16 inches). The wheel cylinder is a core hydraulic drum brake system component, mounted on the rear axle brake backing plate, pushing the brake shoes against the drum to achieve braking. Designed for HINO EF750 and 500 series, it offers bolt-on fitment without modification.
Working Principle
The brake wheel cylinder is the actuating element in a drum brake hydraulic system. When the driver depresses the brake pedal, the master cylinder pressurizes brake fluid, which is transmitted through hydraulic lines to each wheel cylinder. The pistons inside the wheel cylinder push outward under hydraulic pressure, forcing the brake shoes into contact with the rotating brake drum. Friction converts the vehicle's kinetic energy into heat, decelerating or stopping the vehicle.
Critical Safety Note: The piston cup seals are critical — if they age or rupture, brake fluid leaks, braking force drops, and total brake failure can result.
Failure Symptoms
Brake pedal feels soft or spongy; pedal travel gradually increases with the pedal held down
Vehicle pulls to one side under braking; uneven braking force
Visible brake fluid seepage around the wheel cylinder area
Scraping or grinding noise during braking
These symptoms indicate that the wheel cylinder's piston seals have failed or the bore is worn. Prompt replacement is required to prevent total brake system failure.
Verified Specifications
✅Bore Diameter: 58.73mm (2-5/16 inches), conforming to OEM standard
✅Material: Grey cast iron cylinder body with aluminum alloy piston
✅Fitment: Fits HINO EF750, 500 series (2010-on MK 4, etc.)
✅Quality Certified: CE certification and ISO quality system standards
Product Details
Part Number
47550-1630 475501630
Product Name
Brake Wheel Cylinder
Car Model
HINO EF750
Engine Model
HINO EF750
Condition
100% Brand New
Material
High-strength aluminum alloy & precision bearings
Origin
China Mainland
Main Markets
Middle East, Asia, Africa, South America, North America & Europe
Vehicle Compatibility
Primary Applications:
• HINO EF750
• HINO 500 Series (2010-on)
• HINO Serie 500 FC1726 / GH1726 (2010-on) with J08C-TI engine
Important Installation Notes:
• This is a rear axle brake wheel cylinder
• Verify the original cylinder's appearance and port configuration
• Confirm brake line connection thread specification matches
• Recommended to replace both wheel cylinders on the same axle simultaneously
Features & Benefits
Feature
Benefit
58.73mm OEM Standard Bore
Precise match with original brake system
Grey Cast Iron Body + Aluminum Piston
Structural strength with optimized heat transfer
SEIKEN/TRW Cross-Verified
Compatible with international brand replacements
OE Direct-Fit Replacement
Bolt-on installation without modification
CE Certified
Consistent batch quality assured
Quality Control Standards
QC Item
Verification Method
Bore Diameter
Inside micrometer, tolerance control on 58.73mm
Seal Performance
Hydraulic seal bench test, leak-free verification
Piston Stroke
Dedicated gauge for piston extension and return stroke
Cylinder Body Material
Spectrometer verification of grey cast iron composition
Thread Specification
Thread gauge inspection of brake line port
Critical Safety Advisory:
Brake wheel cylinder replacement involves a core component of the hydraulic braking system and must be performed by a qualified technician. The brake system must be completely bled of air during installation; otherwise, brake failure will result.
Installation Guidelines
Lift and safely support the vehicle; remove wheels and brake drum
Disconnect the brake line connection; collect any leaking brake fluid
Remove wheel cylinder mounting bolts; take out the old cylinder and clean the mounting surface
Install the new cylinder; tighten mounting bolts to the torque specified in the workshop manual
Reconnect the brake line, ensuring the fitting is secure
Bleed the brake system until the pedal feels firm
Reinstall brake drum and wheels; perform a road test to confirm normal braking performance
Note: Always refer to the HINO EF750 original workshop manual for exact torque values.
Maintenance Schedule
Every 6,000-12,000 km: Check brake fluid level and inspect wheel cylinder area for leakage
Every 12 months or 60,000 km: Inspect wheel cylinder rubber seals; replace if necessary
Every 2 years: Replace brake fluid to prevent moisture-induced internal corrosion
If brake pedal feels soft, fluid level drops abnormally, or the vehicle pulls during braking, inspect the wheel cylinder immediately and replace
Yimi (Guangzhou) Automotive Parts Co., Ltd.
Located in Guangzhou—the economic and transportation hub of Southern China—we are a specialized supplier and exporter with over 20 years of experience in the automotive parts industry. We focus on the production and sales of high-quality ... Yimi (Guangzhou) Automotive Parts Co., Ltd.
Located in Guangzhou—the economic and transportation hub of Southern China—we are a specialized supplier and exporter with over 20 years of experience in the automotive parts industry. We focus on the production and sales of high-quality ...
