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The Clutch Brake Booster with OEM numbers 1-31800160-0 / 1318001600 is a verified direct-fit replacement for ISUZU FRR series medium-duty trucks. This vacuum servo assembly is a critical component of the clutch actuation system, responsible for amplifying pedal force to ensure smooth and reliable clutch engagement and disengagement under heavy load conditions.
2025 Verifiable Signal Highlights
✅OEM Standard Size: Manufactured to OEM standard dimensions — confirmed by dimensional inspection against original ISUZU specifications
✅Direct-Fit Replacement: Standard OEM mounting configuration for ISUZU FRR applications — direct bolt-on fitment without modification
✅OEM Cross-Reference Verified: Replaces 1-31800160-0 / 1318001600; cross-references with 646-01049, 1-31800262-0, and HD-A083
✅100% Pre-Delivery Inspection: Every unit undergoes function and sealing inspection before packaging
✅Proven Application: Designed for ISUZU FRR trucks with 6HE1, 6HE1T, and 6BG1 engine configurations
Failure Symptoms — Replace Promptly If You Notice
Hard Clutch Pedal — requires excessive force to depress, especially in stop-and-go traffic
Hissing or Air Leak Noise — when depressing the clutch pedal, indicating vacuum loss
Spongy or Inconsistent Pedal Feel — pedal does not return smoothly or feels soft
Clutch Slipping Under Load — engine RPM rises without corresponding vehicle acceleration
Product Specifications
Part Number:
1-31800160-0 1318001600
Product Name:
Clutch Brake Booster
Car Model:
FRR
Engine Model:
FRR
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
Engine
Notes
ISUZU
FRR
6HE1 / 6HE1T
FRR32, FRR34
ISUZU
FRR
6BG1
FRR series
ISUZU
FVR
6HE1 / 6HE1T / 6BG1T
Cross-compatible reference
⚠️ Important: Always verify your OEM number before ordering. This booster is designed for vacuum-assisted clutch systems. Confirm your engine code and chassis number. If unsure about fitment, provide your VIN for verification.
Features & Benefits
Feature
Benefit + Verification Signal
OEM standard dimensional accuracy
Precise fitment with original mounting points — verified by dimensional inspection against ISUZU specifications
Steel housing construction
Withstands vacuum pressure and vibration under heavy-duty operation — verified by sealing and function testing
Direct bolt-on design
No modification required — reduces installation time and labor cost
Flexible inventory management for distributors and repair shops
100% pre-delivery function test
Zero-defect commitment — confirmed by in-house QC records
Quality Control & Verification
QC Item
Verification Method
Dimensional accuracy
OEM standard size inspection
Sealing integrity
Vacuum pressure hold test
Function performance
Simulated clutch actuation test
Surface & finish inspection
100% manual visual inspection
Pre-delivery function test
Full assembly operation check before packaging
Installation & Maintenance Recommendations
⚠️ IMPORTANT: This is a safety-related clutch system component. Professional installation is recommended. Refer to the ISUZU workshop manual for your specific model.
Installation Guidelines
Disconnect battery negative terminal
Locate the clutch booster on the firewall / clutch pedal bracket area
Disconnect vacuum hose and clutch master cylinder push rod from the booster
Remove mounting bolts (typically 2-4 bolts) and extract the old booster
Clean mounting surface and verify new booster push rod length matches OEM specification
Install new booster, torque mounting bolts to OEM specification
Reconnect vacuum hose and push rod; check for proper engagement
Bleed clutch hydraulic system if applicable; test pedal feel and clutch operation
Maintenance Schedule
Inspect vacuum hose condition every 20,000 km or 6 months
Check clutch pedal free play and booster function every 40,000 km
Replace vacuum hose if cracked or hardened — typically every 60,000 - 80,000 km
Packaging & Supply
Packaging: Neutral carton; customized branded packaging available per customer request
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 ...