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Chassis Spring Valve Brake Chamber MC326823 RH for MITSUBISHI FUSO Truck Air Brake System — Steel Housing OEM Replacement Part
Product Overview
This Brake Chamber Spring Valve (Chassis Spring Valve) is a verified direct-fit replacement for MITSUBISHI FUSO trucks, with OEM number MC326823 and installation position right-hand (RH). The component is a key actuator in the truck air brake system, converting compressed air pressure into mechanical braking force to drive the brake shoes or discs. Designed for MITSUBISHI FUSO series trucks, it offers bolt-on fitment without modification.
Working Principle
The brake chamber is the actuating mechanism of the air brake system. Its core function is to convert compressed air pressure from the brake valve into mechanical thrust. Compressed air enters the chamber and pushes an internal diaphragm or piston, transmitting force through a push rod to the brake slack adjuster, which rotates the brake camshaft to press the brake shoes against the drum and generate braking force. The spring valve inside the chamber serves as a pressure control element, managing the switching and holding function between service braking and parking braking.
Failure Symptoms
Brake pedal feels soft or brake response is delayed
Continuous air leak (hissing sound) audible near the brake chamber
Parking brake fails to release or hold properly
Vehicle pulls to one side during braking; significantly reduced braking force
Abnormal push rod travel; brake clearance cannot be adjusted properly
These symptoms indicate that the brake chamber spring valve internal seals have worn or failed. Prompt replacement is required to prevent total brake system failure.
Verified Specifications
Material Verified: Steel housing construction meeting commercial vehicle brake system structural strength requirements
Dimensions & Weight Verified: Package size 50*20*20cm, unit weight 8kg
OE Cross-Reference Verified: Replaces OEM MC326823; related numbers include MK326822, MK326823, 8-98169282, 898169282, MK584026, MK584304
Fitment Verified: Fits MITSUBISHI FUSO trucks; installation position right-hand (RH)
100% Factory Tested: Every unit tested before shipment for seal performance and air tightness
Part Number:
MC326823
Product Name:
Brake Chamber Spring Valve
Car Model:
FUSO
Engine Model:
FUSO
Condition:
100% Brand New
Size:
Standard
Weight:
Standard
Origin:
China Mainland
Main Market:
Middle East, Asia, Africa, South America, North America & Europe
Package:
Neutral Packing Or Make It As Requested
Material:
High-strength aluminum alloy & precision bearings
Cooling Type:
Engine coolant circulation
Installation:
Direct OEM replacement
Quality Standard:
OEM equivalent / ISO quality control
Vehicle & Engine Compatibility
Brand
Model
Installation Position
Years
MITSUBISHI FUSO
FUSO Series Trucks
Right Hand (RH)
2000-2020 (reference)
Important Notes:
This is a right-hand (RH) brake chamber spring valve; confirm the required installation position before ordering
Related number MK326822 is the left-hand (LH) counterpart — note the left/right distinction
Different model years may use chamber variants; verify the original chamber's appearance and port configuration
Confirm the chamber-to-air-line connection thread specification matches during installation
Features & Benefits
Feature
Benefit + Verification Signal
Steel Housing Construction
Withstands high-pressure pneumatic loads with structural integrity — material specification verified as Steel
Pneumatic seal test to verify diaphragm and valve body leak-free
Housing Material
Material certificate verification of steel composition
Push Rod Travel
Dedicated gauge for push rod extension and return stroke
Spring Valve Function
Service/parking brake air pressure switching test
Thread Specification
Thread gauge inspection of air line port
Appearance & Marking
Visual inspection, OEM number clearly marked
Outgoing Inspection
100% outgoing testing
Installation & Maintenance Recommendations
Critical Safety Advisory: Brake chamber replacement involves a core component of the air brake system and must be performed by a qualified technician. Before installation, ensure system air pressure is fully released and the parking brake is applied to avoid sudden release of high-pressure air or spring force causing personal injury.
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 ...
