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The Brake Master Cylinder (OEM Numbers: 8-97129691-0 / 8971296910) is a premium-quality, direct replacement hydraulic brake component designed specifically for ISUZU 100P and NPR series trucks equipped with 4HG1 diesel engines.
This precision-engineered master cylinder is the heart of the vehicle's hydraulic brake system - it converts mechanical force from the brake pedal into hydraulic pressure, distributing brake fluid through the brake lines to the wheel cylinders or calipers, ensuring safe and reliable stopping power.
Part Number
8-97129691-0, 8971296910
Product Name
Brake Master Cylinder / Master Cylinder
Car Model
ISUZU 100P, ISUZU NPR, ISUZU REWARD
Engine Model
ISUZU 4HG1 Diesel Engine
Condition
100% Brand New
Origin
China Mainland
Main Market
Middle East, Asia, Africa, South America, North America & Europe
Warranty
6 Months
Features & Advantages
OE Quality: Manufactured to strict ISUZU dimensional and material specifications for perfect fit and function
Precision-Honed Bore: Smooth, accurate bore ensures consistent piston movement and reliable hydraulic pressure
Durable Seals: High-quality brake fluid-resistant seals provide long-lasting leak-free performance
1-1/4" Bore Size: Specifically matched to ISUZU 100P/NPR brake system requirements for optimal hydraulic pressure
Restores Braking Performance: Eliminates spongy pedal feel, low pedal, and reduced braking power
Direct Replacement: Matches OE master cylinder dimensions, mounting points, and hydraulic connections
Corrosion-Resistant Housing: Aluminum or treated cast iron resists corrosion from brake fluid and environmental exposure
Enhances Vehicle Safety: Restores full braking capability for safe vehicle operation
Vehicle & Engine Compatibility
This brake master cylinder is specifically designed for ISUZU light- and medium-duty trucks and commercial vehicles. Common applications include:
ISUZU 100P (Light-Duty Trucks)
ISUZU NPR (Medium-Duty Trucks)
ISUZU REWARD (Commercial Vehicles)
ISUZU 4HG1 Engine Specifications:
4-Cylinder, Inline Diesel
Displacement: 4.3L
Application: Light- and medium-duty trucks
Installation Notes
Professional mechanic installation is essential for safety
Ensure vehicle is on level ground - Safely raise and support the vehicle if required
Drain brake fluid - Remove old brake fluid from the reservoir using a clean suction tool
Disconnect brake lines - Carefully disconnect the brake lines from the master cylinder; cap the lines to prevent fluid loss and contamination
Remove the master cylinder - Unbolt the master cylinder from the brake booster or firewall
Bench bleed the new master cylinder - Before installation, bench bleed the new cylinder to remove air and prime the internal chambers
Position the new cylinder - Install the new master cylinder on the brake booster/firewall; hand-start mounting bolts
Torque mounting bolts - Tighten bolts to manufacturer torque specifications
Connect brake lines - Reconnect the brake lines to the master cylinder; torque line fittings to specification
Refill with fresh brake fluid - Fill the reservoir with the recommended brake fluid (DOT 3 or DOT 4 as specified)
Bleed the brake system - Bleed all four brake circuits in the correct sequence (typically furthest from the master cylinder first)
Check for leaks - Inspect all connections for fluid leaks; ensure the master cylinder is not leaking
Test brake pedal - Pump the brake pedal; ensure firm pedal feel and proper pedal height
Road test - Test the brakes at low speed in a safe area; verify proper stopping performance
Quality Control
Material Verification: Confirms housing and seal materials meet ISUZU durability and brake fluid compatibility specifications
Bore Dimensional Inspection: Cylinder bore diameter, finish, and roundness verified within OEM tolerances
Seal Integrity Testing: Each cylinder tested for seal performance and leak-proof operation
Piston Fit Verification: Piston fit and movement checked for smooth operation
Pressure Testing: Sample tested to ensure consistent hydraulic pressure output
Visual Inspection: 100% checked for casting defects, machining flaws, and seal damage
Packaged Safely: Protected and packaged to prevent damage during transit
Packaging and Delivery
Neutral export packing or customized packaging available
Carton or wooden case for safe transportation
Fast delivery for stock items
Shipping by Express Air or Sea
Inquiry
For pricing, availability, or bulk purchase of the Brake Master Cylinder 1-1/4" 8-97129691-0 8971296910 For ISUZU 100P NPR 4HG1, please contact our sales team for a competitive quote and expert technical support.
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 ...