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Brake Spring Chamber 1-48250842-0 1482508420 for ISUZU CXZ05 6WF1 — Verified OEM Spring Brake Chamber
Product Overview
The Brake Spring Chamber with OEM number 1-48250842-0 (without hyphen 1482508420) is a verified direct-fit replacement for ISUZU CXZ05 series heavy trucks equipped with the 6WF1 diesel engine. This component is essential for mixer trucks, pump trucks, and other construction vehicles, serving as the core actuator of the air brake system.
The chamber combines service brake and spring energy storage functions: compressed air activates the diaphragm and push rod for braking force, while loss of air pressure triggers automatic parking/emergency brake engagement for fail-safe protection.
Product Specifications
Part Number:
1-48250842-0 1482508420
Product Name:
Brake Spring Chamber
Car Model:
CXZ05
Engine Model:
6WF1
Condition:
100% Brand New
Material:
High-strength aluminum alloy & precision bearings
Installation:
Direct OEM replacement
Quality Standard:
OEM equivalent / ISO quality control
Quality Verification
OEM Standard Dimension Verification: Manufactured to ISUZU OEM standard dimensions with mounting holes matching the original
Material Verification: High-strength metal housing resistant to high pressure and corrosion
Function Verification: Diaphragm, push rod, and power spring functionally tested
Warranty Verification: 12-month warranty with quality inspection reports available
Vehicle Compatibility
Brand
Model
Engine
Application
ISUZU
CXZ05
6WF1
Standard truck
ISUZU
CXZ81K
6WF1
Heavy truck
ISUZU
CYZ
6WF1
Mixer truck / Pump truck
Important Compatibility Notes:
Confirm left/right side installation position before ordering
1-48250842-0 and 1-48250841-0 are different side versions and are not interchangeable
Different years and chassis configurations may vary; provide VIN or chassis number for final confirmation
Failure Symptoms
Continuous air leak: Hissing sound around chamber housing with pressure drop
Weak or delayed braking: Insufficient braking force with longer stopping distance
Park brake will not release or stays locked: Broken or corroded internal spring
Uneven braking pull to one side: Vehicle pulls during braking due to uneven force
Brake drag: Wheels retain partial braking after pedal release
Failure to hold air pressure at rest: System pressure continuously drops when stationary
⚠️ CRITICAL SAFETY WARNING
The spring brake chamber contains a powerful pre-loaded spring. Before disassembly, the spring MUST be caged using a caging bolt. Failure to properly cage the spring before removing the chamber can cause the spring to eject with lethal force, resulting in serious personal injury.
Professional installation with specified tools is strongly recommended.
Features & Benefits
Spring brake fail-safe design
Automatically applies parking/emergency brake when air pressure is lost
High-strength metal housing
Resists high pressure and corrosion with reliable clamp band seal
Precision-molded rubber diaphragm
Ensures efficient air pressure transfer and responsive braking
Power spring fatigue tested
Ensures sufficient parking brake force after long-term use
OEM standard mounting dimensions
Direct bolt-on fit without modification
100% factory inspection
Every unit air-tightness and functionally tested before shipment
Quality Control Standards
Air tightnessPressure hold test (no leakage at rated pressure)
Diaphragm strengthTensile and fatigue testing (sampling)
Spring forceCompression force testing (sampling)
Push rod strokeDedicated gauge testing within specified range
Housing dimensionsCMM full-dimension inspection
Clamp band sealClamp torque and seal integrity testing
Surface treatmentSalt spray test (sampling per standard)
Visual inspection100% visual — no cracks, deformation, or rust
Installation Guidelines
Reference ISUZU Workshop Manual for complete procedures:
Lift and safely support the vehicle; remove the rear wheel
Cage the spring brake chamber using a caging bolt
Disconnect air line fittings from the chamber; mark line positions
Remove chamber mounting bolts and extract the old chamber
Clean the mounting surface; inspect bracket and push rod connections
Install the new chamber and tighten mounting bolts to specified torque
Connect air lines and remove the caging bolt
Adjust push rod stroke to specified range
Perform air-tightness check on the brake system to confirm no leaks
Road test to confirm proper braking with no pull or drag
Maintenance Schedule
Inspect chamber air tightness and push rod stroke every 10,000 km or at every brake service
Inspect diaphragm and spring condition every 2 years or per fleet maintenance schedule
Service immediately if continuous air leak, reduced braking force, or park brake release failure is detected
Packaging & Supply
Neutral carton packaging with individual shockproof wrapping
Custom branded packaging available (authorization letter required)
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 ...
