OEM Quality Brake Vacuum Booster 9.7kg Standard Weight ISO/TS16949 Certified for ISUZU FSR Truck
Basic Properties
Place of Origin:
CHINA
Brand Name:
YIMI
Certification:
ISO/TS16949
Model Number:
FSR Truck
Trading Properties
Minimum Order Quantity:
20 PCS
Price:
Negotiable
Payment Terms:
T/T
Supply Ability:
10000 pcs/month
Specifications
| Net Weight: | 9.7kg | Material: | Metal |
| OEM Part Number: | 1-47800443-0 / 1478004430 | Vehicle Fitment: | ISUZU FSR, FSR34, FSR90, NPR, NQR, NPR-HD |
| Alternate Numbers: | 1-47800443-J / 147800443J | Part Name: | Brake Vacuum Booster / Hydro Master Assembly |
| MOQ: | 10 Pieces | Installation: | Direct OEM Replacement |
| High Light: | OEM Quality Brake Vacuum Booster,9.7kg Standard Weight Vacuum Booster,ISO/TS16949 Certified Hydro Master Assembly |
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Product Description
Brake Vacuum Booster 1-47800443-0 1478004430 for ISUZU FSR Truck — 9.7kg OEM Quality
Product Overview: The Brake Vacuum Booster (Hydro Master Assembly) with OEM numbers 1-47800443-0 / 1478004430 is a verified direct-fit replacement for ISUZU FSR series trucks. This vacuum booster is a critical power-assist component of the hydraulic brake system, responsible for utilizing engine intake manifold vacuum to amplify the driver's brake pedal force, making braking light and responsive.
| Part Number | 1-47800443-0 1478004430 |
| Product Name | Brake Vacuum Booster |
| Car Model | FSR |
| Condition | 100% Brand New |
| Weight | 9.7kg |
| Material | High-strength aluminum alloy & precision bearings |
| Main Markets | Middle East, Asia, Africa, South America, North America & Europe |
How It Works
The vacuum booster is installed between the brake pedal and brake master cylinder. When the engine runs, intake manifold vacuum creates pressure difference across the diaphragm, which amplifies brake pedal force through a push rod that actuates the master cylinder piston. The integrated hydraulic master cylinder pressurizes brake fluid for wheel brake operation.
Failure Symptoms
⚠️ Hard Brake Pedal — Brake pedal feels abnormally heavy; power assist is lost
⚠️ Longer Stopping Distance — Insufficient braking force requiring greater pedal effort
⚠️ Pedal Sinks After Engine Shutoff — Pedal slowly sinks when pressed after engine off
⚠️ Brake Noise — Hissing air leak sound from booster
⚠️ Pedal Fails to Return — Pedal does not return quickly after release
⚠️ Brake Fluid Leak — Visible brake fluid seepage at connections
Verified Specifications
✅ Net Weight: 9.7kg
✅ Material: Metal housing
✅ Brand: BZLP / IZUMI
✅ Certification: ISO/TS16949
✅ Condition: Brand New
✅ Warranty: 12 months
Vehicle Compatibility
| Brand | Model/Chassis | Engine | Notes |
|---|---|---|---|
| ISUZU | FSR | 6BD1 / 6BG1 | Primary fitment |
| ISUZU | FSR34 | 6BG1 / 6BD1 | Primary fitment |
| ISUZU | FSR90 | 6HE1 / 6HH1 | Primary fitment |
| ISUZU | NPR | 4BD1 / 4BG1 / 4HE1 | Compatible fitment |
| ISUZU | NQR | 4HE1 | Compatible fitment |
| ISUZU | NPR-HD | 4HE1 | Compatible fitment |
Key Features & Benefits
Metal Housing Construction
High strength, corrosion resistance for commercial vehicle harsh conditions
High strength, corrosion resistance for commercial vehicle harsh conditions
9.7kg Standard Weight
Exact match to OEM specifications for consistent braking performance
Exact match to OEM specifications for consistent braking performance
Integrated Hydraulic Master Cylinder
Reduces connection points, simplifies installation, improves reliability
Reduces connection points, simplifies installation, improves reliability
ISO/TS16949 Certified
International automotive quality management certified
International automotive quality management certified
Direct OE Fit Replacement
No modification needed for quick installation
No modification needed for quick installation
12-Month Warranty
Peace of mind on manufacturing defects
Peace of mind on manufacturing defects
Installation Guidelines
⚠️ IMPORTANT: The vacuum booster is a critical safety component. Installation should be performed by qualified professionals only.
- Park on level ground, chock wheels, disconnect battery negative terminal
- Partially drain brake fluid to prevent spillage during removal
- Disconnect vacuum lines and check valve from booster
- Remove brake master cylinder from booster
- Remove brake pedal clevis pin and booster mounting bolts
- Thoroughly clean firewall mounting surface
- Mount new booster to firewall and torque bolts to specification
- Connect brake pedal push rod and install clevis pin
- Install brake master cylinder to booster
- Connect vacuum lines and check valve
- Fill with ISUZU-specified brake fluid to proper level
- Bleed brake system in workshop manual sequence
- Check for leaks with engine running
- Perform road test to confirm proper braking
Packaging & Supply
Packaging: Neutral carton / Custom branded packaging
Packaging Unit: 1 piece/box
MOQ: 10 pieces; volume discounts available
Delivery Time: 3–30 days after payment confirmation
Payment Terms: T/T, L/C, Western Union
Target Customers: Truck parts wholesalers, repair chain stores, fleet purchasers
Packaging Unit: 1 piece/box
MOQ: 10 pieces; volume discounts available
Delivery Time: 3–30 days after payment confirmation
Payment Terms: T/T, L/C, Western Union
Target Customers: Truck parts wholesalers, repair chain stores, fleet purchasers
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