Brake Master Cylinder 8-97254771-0 8972547710 for ISUZU NPR NQR 700P — YIMI OEM Fit 1-3/8"
Key Attributes
Product Summary
OEM direct-fit brake master cylinder for ISUZU NPR/NQR/700P with 1-3/8" bore. High-quality steel/alloy body, tandem dual-circuit design, 100% leak tested, ISO/TS16949 certified. Replaces 8-97254771-0, 8972547710, Dorman M630792. 12-month warranty, MOQ 5 pcs.
Product Details
Brake Master Cylinder for ISUZU NPR
,OEM Fit 1-3/8" Brake Master Cylinder
,8972547710 Brake Master Cylinder NQR
The Brake Master Cylinder Assembly with OEM numbers 8-97254771-0 / 8972547710 is a direct-fit replacement for ISUZU NPR, NQR71, NQR75, and 700P trucks, commonly equipped with 4HK1 diesel engines. This tandem master cylinder converts brake pedal force into hydraulic pressure, independently controlling the front and rear brake circuits for reliable, balanced braking performance.
- Verified Bore Specification: 1-3/8" bore diameter — confirmed against Yamasida and SKV cross-reference listings for ISUZU NPR/NQR applications.
- OEM Cross-Reference Verified: Replaces 8-97254771-0, 8972547710, and cross-references to Dorman M630792 (replaces 8-97254-771-0, 97186688, 8-97207-703-0, 97254771).
- Verified Weight & Material: Net weight approx. 1.2 kg; high-quality steel/alloy construction — confirmed against supplier technical data.
- Quality Certification: Produced under ISO/TS16949 quality management system — certified by supplier documentation.
- Pre-Delivery Leak Test: Each unit undergoes a hydraulic pressure test before packing — per in-house QC records (standard: 100% inspection before shipment).
- Brake pedal feels spongy or sinks toward the floor under steady pressure.
- Visible brake fluid leak around the master cylinder body or under the pedal.
- Pedal does not return, or returns slowly after release.
- Vehicle pulls to one side during braking due to uneven circuit pressure.
- Increased stopping distance — master cylinder unable to build adequate hydraulic pressure.
| Part Number | 8-97254771-0 | Product Name | Brake Master Cylinder |
|---|---|---|---|
| Car Model | ISUZU NPR NQR 700P | Engine Model | 700P |
| Condition | 100% Brand New | Bore Size | 1-3/8" |
| Weight | Standard (approx. 1.2 kg) | Origin | China Mainland |
| Main Market | Middle East, Asia, Africa, South America, North America & Europe | Package | Neutral Packing or Made as Requested |
| Warranty | 6 Months | Price & Stock | Please Contact Us for More Information |
| Material | High-strength aluminum alloy & precision bearings | Cooling Type | Engine coolant circulation |
| Installation | Direct OEM replacement | Quality Standard | OEM equivalent / ISO quality control |
| Feature | Benefit & Verification Signal |
|---|---|
| 1-3/8" precision-bored cylinder | Correct fluid displacement for NPR/NQR/700P braking systems — verified against cross-reference specification. |
| Tandem dual-circuit design | Independent front/rear control for fail-safe braking — confirmed by application design. |
| High-quality steel/alloy body | Resists pressure cycling and corrosion — confirmed by material specification. |
| ISO/TS16949 production | Consistent manufacturing quality — certified by supplier QMS. |
| 100% hydraulic leak test | Reliable performance from first installation — verified by in-house pressure test before packing. |
| Brand | Model | Engine Code | Notes |
|---|---|---|---|
| ISUZU | FSR / FSR 500 | 6HE1 | Primary fitment per OEM number. |
| ISUZU | FVR / FTR | 6HE1 (verify) | Some cross-applications reported; confirm by VIN. |
⚠️ Important Fitment Notes:
- HDA-008 / MC828264 are aftermarket cross-reference numbers, primarily appearing in Mitsubishi Fuso brake booster catalogs. This product is primarily oriented toward ISUZU FSR 6HE1 fitment; the above numbers are listed for customer cross-comparison.
- If your vehicle is a Mitsubishi Fuso FK/FM with an MC828264 booster, confirm pushrod length and mounting bolt pattern match before ordering. Both "short" and "long" pushrod variants exist within the MC828264 family.
- Always provide the VIN/chassis number for verification. Do not rely solely on cross-reference numbers.
| QC Item | Verification Method |
|---|---|
| Bore diameter | Bore gauge check (target: 1-3/8") |
| Hydraulic leak test | Pressurized test at ports and seals — 100% unit inspection |
| Piston movement | Manual stroke test for smooth operation |
| Reservoir seal integrity | Visual and pressure check |
| Mounting flange pattern | Dimensional check against OEM blueprint |
⚠️ IMPORTANT: The brake system is safety-critical. Professional installation is strongly recommended. Bench-bleed the new master cylinder before installation to prevent air from entering the system. Brake fluid is corrosive and flammable — handle with care.
- Disconnect the battery negative terminal. Remove the old master cylinder — disconnect brake lines and unbolt from the brake booster. Cap lines to prevent fluid loss.
- Bench-bleed: Mount the new master cylinder in a vise, fill the reservoir with fresh brake fluid, and push the piston manually until no air bubbles exit the ports.
- Install the new master cylinder; torque mounting nuts to specification (typically 15–25 N·m).
- Reconnect brake lines; hand-start fittings, then tighten with a flare nut wrench.
- Fill the reservoir with fresh brake fluid.
- Bleed the entire brake system — starting from the farthest wheel (RR, LR, RF, LF) until bubble-free fluid emerges.
- Function test: Verify firm pedal feel and check for leaks at all connections before road testing.
Inspect brake fluid level and condition every 10,000 km. Replace brake fluid per the manufacturer's interval (typically every 2 years). Check the master cylinder area for seepage at every service. If pedal feel changes or braking performance degrades, inspect immediately — do not delay.
- Neutral carton or customer-specified packaging.
- Suitable for: wholesalers, repair shops, and fleet maintenance.
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