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Brake Spring Chamber 1-48250842-0 1482508420 for ISUZU CXZ05 6WF1 6WG1 Truck
Verified OEM Fit for Diesel Air Brake System
Product Overview
The Brake Spring Chamber with OEM numbers 1-48250842-0 / 1482508420 is a verified direct-fit replacement for ISUZU CXZ05 and CYZ series trucks equipped with the 6WF1 diesel engine. This component is the critical actuator in the pneumatic brake system, converting compressed air pressure into mechanical thrust to actuate the brake slack adjuster for both service braking and parking/emergency brake functions.
2025 Quality Verification
✅ Weight & Spec Verified: Actual weight 11kg, OEM standard dimensions, ISO/TS16949 certified
✅ Fitment Verified: Fits ISUZU CXZ05 and CYZ chassis with engine code 6WF1
✅ Standards Compliance: Meets FMVSS 393.47 and ECE R13 requirements
Failure Symptoms
Immediate inspection required if any of these symptoms are present:
Continuous hissing air leak around the chamber housing
Push rod stroke exceeding adjustment limit (over 50mm beyond limit)
Parking brake fails to release or remains locked
Brake drag causing wheel-end overheating or uneven pull
Vehicle cannot hold air pressure at rest
Product Specifications
Part Number
1-48250842-0 1482508420
Product Name
Brake Spring Chamber
Car Model
CXZ05
Engine Model
6WF1 6WG1
Condition
100% Brand New
Weight
11kg
Origin
China Mainland
Main Market
Middle East, Asia, Africa, South America, North America & Europe
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
Chassis
Engine
Years
ISUZU
CXZ
CXZ05
6WF1
Confirm by chassis number
ISUZU
CYZ
CYZ Series
6WF1
Confirm by chassis number
⚠️ Important: Some CXZ chassis have LHD/RHD configuration differences. Please provide VIN or chassis number to confirm mounting side before ordering. Spring brake chambers contain a high-tension spring — disassembly by non-professionals is prohibited.
Features & Benefits
Feature
Benefit + Verification Signal
High-tension power spring
Ensures reliable parking brake lock — verified by spring force testing under ISO/TS16949
Precision diaphragm seal
Reduces air leakage risk — meets ECE R13 sealing requirements
Reinforced push rod
Prevents bending or abnormal wear — designed for CXZ05 heavy-duty applications
OEM-standard dimensions
Direct bolt-on fitment without modification — confirmed via OEM parts catalog cross-reference
Quality Control & Verification
QC Item
Verification Method
Dimensional inspection
CMM measurement against OEM drawing
Seal integrity test
Air pressure hold test per FMVSS 393.47 stroke standards
Spring force test
Compression force verification to ensure locking capacity
Diaphragm integrity
Visual and airtightness inspection
Surface protection
Salt spray test for corrosion resistance
Installation & Maintenance
⚠️ IMPORTANT: Always cage the spring brake chamber using the caging bolt before removal. Failure to cage the power spring can cause serious injury.
Installation Steps (Reference workshop manual):
Park vehicle on level ground, apply parking brake, chock wheels
Release system air pressure to 0
Fully cage the spring chamber using caging bolt (do not exceed 100 Nm / 74 ft-lbs)
Disconnect air lines and remove mounting bolts
Install new chamber, reconnect air lines, torque mounting bolts to specification
Remove caging bolt, restore air pressure, test brake stroke and seal integrity
Maintenance Schedule
Inspect push rod stroke and air tightness every 50,000 km or 6 months; perform full diaphragm and clamp band inspection every 12 months.
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 ...