ISUZU Brake Cylinder 1475002071 1-47500207-1 for 6BD1 Engine — OEM Standard for FSR NPR FORWARD Trucks

Opening:
The ISUZU Brake Cylinder with OEM numbers 1475002071 / 1-47500207-1 is a precision-engineered replacement designed for ISUZU 6BD1 series diesel engines and compatible chassis. This component is widely used in ISUZU FSR, NPR, NQR series trucks and FORWARD series models, compatible with 6BD1, 6BG1, 6HE1 engines. The brake cylinder is a core actuation component of the vehicle's hydraulic braking system, responsible for converting hydraulic pressure from the master cylinder into mechanical force to push brake shoes or pads against brake drums or discs, enabling vehicle deceleration and stopping.

📌 Product Positioning: This product is a Brake Cylinder (CYLINDER ASM). Some sources classify it as a Brake Master Cylinder. Please verify the specific installation position (master cylinder / wheel cylinder) based on actual vehicle configuration.

Working Principle:
The brake cylinder is a critical actuation component of the hydraulic braking system. When the driver depresses the brake pedal, the master cylinder converts mechanical force into hydraulic pressure, which is transmitted through brake fluid lines to each wheel's brake cylinder (or caliper). The piston(s) inside the wheel cylinder move outward under hydraulic pressure, pushing brake shoes against the brake drum (drum brake) or brake pads against the disc (disc brake). The resulting friction converts the vehicle's kinetic energy into thermal energy, achieving braking deceleration. The sealing performance of the brake cylinder directly determines the braking system's response speed and braking force stability.

Failure Symptoms (⚠️ Inspect immediately if any of these occur):

Verifiable Data (🔬 Based on Industry Standards & General Validation):

• ✅ Product Certification: Manufactured under ISO/TS16949 automotive quality management system certification — internationally recognized quality assurance for automotive components.

• ✅ Manufacturer Background: Supplied by IZUMI brand with 18 years of experience in the automotive parts industry, featuring mature production systems and a professional sales team.

• ✅ Net Weight: 2.04 kg.

• ✅ Compatible Engine: ISUZU 6BD1 series diesel engine.

• ✅ Extended Compatibility: Also fits 6BG1, 6HE1 engines and FORWARD series models.

• ✅ Condition: Brand New — 100% quality inspected.

📌 Data Source Note: Certification, manufacturer background, and weight data above are based on publicly available product information and general industry standards. Test reports available upon request.

Part Number:	1475002071 1-47500207-1	Product Name:	Brake Cylinder
Car Model:	FSR NPR	Engine Model:	6BD1
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

Primary Engine Applications:

Engine Model	Primary Application
ISUZU 6BD1	FSR / NPR trucks, FORWARD series
ISUZU 6BG1	FORWARD series, FSR trucks
ISUZU 6HE1	FORWARD series

Primary Vehicle Applications:

Brand	Model Series	Compatible Engines	Notes
ISUZU	FSR	6BD1 / 6BG1	Medium-duty trucks
ISUZU	NPR	6BD1	Light/medium-duty trucks
ISUZU	NQR	6BD1	Medium-duty trucks
ISUZU	FORWARD	6BD1 / 6BG1 / 6HE1	Medium/heavy-duty truck series
ISUZU	FRR	6BD1 / 6BG1	Medium-duty trucks

⚠️ Important Fitment Warnings:

1. Master Cylinder vs. Wheel Cylinder: This product is listed as Brake Cylinder or Brake Master Cylinder across different sources. Please verify the required component type based on actual vehicle brake system configuration.

2. Left vs. Right Side: If this is a wheel cylinder, confirm left/right side position. Some sources indicate this number may correspond to the Right-Hand (R.H.) side.

3. Pair Replacement Recommended: When replacing the brake cylinder, it is recommended to replace brake fluid simultaneously and inspect brake pads/shoes and brake lines.

4. System Bleeding Required: After installation, brake system bleeding is mandatory to remove air from the lines and ensure firm pedal feel and normal braking force.

5. Torque Specification: Refer to ISUZU factory workshop manual for mounting bolt torque (typically 15–25 N·m, depending on specific installation position).

6. Compatibility Confirmation: Please provide VIN or chassis code before ordering to ensure precise matching.

5. Features & Benefits

Feature	Benefit + Verification Signal
ISO/TS16949 Quality Management Certification	Internationally recognized automotive industry quality standard — ensures full-process quality control from design to production — ISO/TS16949 certified.
18 Years Industry Experience (IZUMI Brand)	Mature production systems and extensive industry experience — provides global customers with reliable, high-quality, comprehensive automotive parts solutions.
Precision Machining & Rigorous Sealing Design	Ensures stable hydraulic pressure transmission and rapid, reliable brake response — effectively reduces stopping distance and enhances driving safety.
High-Quality Corrosion-Resistant Materials	Excellent corrosion resistance for harsh operating environments — extends product service life and reduces replacement frequency.
100% Factory Quality Inspection	Every piece undergoes strict quality inspection — ensures zero-defect delivery.
Broad OEM Cross-Compatibility	Replaces OEM numbers 1475002071 / 1-47500207-1; compatible with 1475002070 / 1-47500207-0 — simplifies sourcing for repair shops.
Flexible Delivery & Service	Delivery time 7–10 days; supports multiple payment methods (T/T, Western Union, etc.) — meets urgent procurement needs.

6. Quality Control & Verification

QC Item	Inspection Method	Acceptance Criterion	Frequency
Cylinder bore diameter	Bore gauge / CMM	Standard ± 0.02 mm	100%
Piston-to-bore clearance	Special gauges	Standard range	Batch sampling
Seal integrity	Visual + dimensional inspection	No damage, no deformation	100%
Hydraulic seal test	Pressure test bench	No leakage; stable pressure retention	100%
Material composition	Spectrometer	Per aluminum/cast iron standard	Batch sampling
Surface anti-corrosion	Salt spray test	No red rust	Annual sampling
Thread size & precision	Thread gauge	Per standard thread specification	Batch sampling
Visual inspection	Visual	No scratches, burrs, or rust	100%

7. Installation & Maintenance Recommendations

⚠️ IMPORTANT SAFETY NOTICE:

The brake cylinder is a critical braking system safety component that directly affects vehicle braking performance and driving safety. Professional installation with specialized tools is strongly recommended. Brake system bleeding is mandatory after replacement.

Installation Guidelines (Reference Workshop Manual):

Preparation:

• Confirm installation position (master cylinder / wheel cylinder, left/right side)

• Prepare tools: Socket wrench, brake fluid, brake line wrench, drain container, gloves

• Recommended to prepare new brake fluid and brake line sealing washers

Removing Old Brake Cylinder:

1. Park vehicle on level surface, engage parking brake, and securely support with jack stands.

2. Remove relevant wheel to access brake assembly.

3. Use a brake line wrench to disconnect brake fluid line from old cylinder.

4. Remove bolts or fasteners securing the old brake cylinder.

5. Carefully remove the old brake cylinder.

Installing New Brake Cylinder (Installation Sequence):

1. Clean mounting surface: Thoroughly clean brake cylinder mounting surface — ensure no oil, dirt, or debris.

2. Install new brake cylinder: Position and secure the new brake cylinder.

3. Connect brake line: Reconnect brake fluid line — ensure threaded connection is tight and leak-free.

4. Fill brake fluid: Fill reservoir with DOT3/DOT4 specification brake fluid to correct level.

5. Brake system bleeding: Mandatory — bleed brake system starting from the farthest wheel, removing air from lines until brake pedal feels firm.

6. Install wheel: Reinstall wheel and torque lug nuts to specification.

Post-Installation Checks (Mandatory):

1. Brake pedal feel check: Depress brake pedal — confirm firm feel, no sponginess, normal travel.

2. Leak check: Inspect all brake line connections and cylinder body — confirm no brake fluid leakage.

3. Road test: Perform low-speed road test — confirm balanced braking, no pulling, no abnormal noise, normal stopping distance.

4. Brake warning light check: Confirm dashboard brake warning light is off.

Maintenance Schedule:

Item	Interval	Notes
Brake fluid inspection	Every 10,000 km / each service	Check fluid level and color; brake fluid should be clear
Brake cylinder & line leak check	Every 20,000 km	Check for brake fluid seepage
Brake fluid replacement	Every 2 years / 40,000 km	Brake fluid absorbs moisture; long-term use degrades performance
Brake cylinder inspection	Upon symptom occurrence	Inspect/repair/replace if leakage or sticking detected

8. Packaging & Supply

Item	Detail
Packaging	Inner: Dust/moisture protection
	Outer: Neutral standard export carton or custom per customer request
Quantity per package	1 pc/box (standard shipment packaging)
Unit net weight	2.04 kg
Brand	IZUMI
Place of Origin	China
Customization Options	OEM custom packaging / neutral packaging / private labeling
Minimum Order Quantity	5 pieces
Delivery Time	7–10 days
Payment Terms	D/A, D/P, T/T, Western Union, MoneyGram
Supply Ability	1000 pieces/month
Target Customers	Truck parts wholesalers, heavy-duty truck repair shops, fleet purchasers, export traders