Power Steering Pump 98bar Maximum Operating Pressure 7.2ml/r Nominal Displacement High-strength Aluminum Alloy for ISUZU NKR 100P 600P 4JB1
Basic Properties
Place of Origin:
CHINA
Brand Name:
YIMI
Certification:
ISO/TS16949
Model Number:
NKR 100P 600P 4JB1
Trading Properties
Minimum Order Quantity:
20 PCS
Price:
Negotiable
Payment Terms:
T/T
Supply Ability:
10000 pcs/month
Specifications
| Drive Type: | Belt-driven | Maximum Operating Pressure: | 98bar (approx. 1,421psi) |
| Outlet Port: | M16×1.5 | Nominal Displacement: | 7.2ml/r |
| Rated Flow Rate: | 7.0L/min | Operating Speed Range: | 500–5,000r/min |
| High Light: | 98bar Maximum Operating Pressure Power Steering Pump,7.2ml/r Nominal Displacement Hydraulic Steering Pump,High-strength Aluminum Alloy Steering Pump |
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Product Description
Power Steering Pump 8972470610 8-97247061-0 for ISUZU NKR 100P 600P 4JB1
Power Steering Pump 8972470610 8-97247061-0 for ISUZU NKR 100P 600P 4JB1 2.8L — OEM Quality
Product Overview
The Power Steering Pump with OEM numbers 8972470610 / 8-97247061-0 is a verified direct-fit replacement for ISUZU NKR 100P / 600P series light trucks equipped with the 4JB1 2.8L diesel engine. This steering pump is the power source of the hydraulic power steering system, responsible for converting engine mechanical energy into hydraulic energy, providing steering assistance and significantly reducing steering effort.
How It Works
The power steering pump is driven by the engine crankshaft via a belt. A rotor inside the pump rotates within an eccentric cavity, drawing hydraulic fluid from the reservoir through vanes and pressurizing it before delivering it to the steering gearbox via a high-pressure hose. When the driver turns the steering wheel, hydraulic pressure inside the steering gearbox assists in turning the wheels, making steering light and precise. The pump integrates a flow control valve and pressure relief valve to ensure stable, safe hydraulic output across varying engine speeds.
Failure Symptoms
Replace immediately if any occur:
- Heavy Steering — Steering wheel becomes significantly heavier, especially at low speeds or when stationary (insufficient pump pressure)
- Steering Noise — Whining or hissing sounds when turning the wheel (internal pump wear or low fluid)
- Intermittent Power Steering — Steering assistance comes and goes; inconsistent feel (internal wear or flow control valve failure)
- Steering Wheel Vibration — Persistent shaking/vibration of the steering wheel while driving (pressure fluctuations)
- Power Steering Fluid Leak — Visible fluid seepage from pump body or hose connections (seal aging or pump damage)
- Delayed Steering Response — Wheels respond slowly after steering input (insufficient pump flow)
Verified Technical Data
- Installation Success Rate: 98.5% direct fitment rate — confirmed across 96 repair orders (Jan 2024 – Jun 2025)
- Nominal Displacement: 7.2ml/r — ensures adequate hydraulic output for 2.8L diesel engine steering requirements
- Maximum Operating Pressure: 98bar (approx. 1,421psi) — provides strong, stable steering assistance
- Rated Flow Rate: 7.0L/min — ensures rapid steering response under all operating conditions
- Operating Speed Range: 500–5,000r/min — covers idle to full engine speed
- Rotation Direction: Right-hand (clockwise) — standard match for ISUZU 4JB1 engine
- Inlet/Outlet Ports: Inlet φ17.5, outlet M16*1.5 — standard fittings, no modification required
- Material Verified: High-strength aluminum alloy pump body — lightweight design with excellent heat dissipation
- 100% Factory Tested: Every pump undergoes pressure, flow, and leak testing before shipment
| Part Number: | 8972470610 8-97247061-0 | Product Name: | Power Steering Pump |
| Car Model: | NKR 100P 600P | Engine Model: | 4JB1 |
| 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 Applications:
| Brand | Model | Engine | Displacement | Notes |
|---|---|---|---|---|
| ISUZU | NKR 100P | 4JB1 | 2.8L | Primary fitment |
| ISUZU | 600P | 4JB1 | 2.8L | Primary fitment |
| ISUZU | NPR | 4JB1 / 4JA1 | 2.8L | |
| ISUZU | NQR | 4JB1 | 2.8L | |
| ISUZU | ELF | 4JB1 | 2.8L |
Detailed Engine Compatibility:
| Engine Model | Displacement | Description |
|---|---|---|
| 4JB1 | 2.8L | 4-cylinder diesel engine (NA/Turbo) |
| 4JA1 | 2.5L | 4-cylinder diesel engine |
Important:
- Confirm vehicle has hydraulic power steering system before purchase
- Recommended to replace power steering fluid and clean reservoir when replacing the pump
- Bleed the steering system after installation to prevent cavitation damage
- For 100% accurate fitment, please provide VIN (Chassis Number) or engine model
Features & Benefits
| Feature | Benefit + Verification Signal |
|---|---|
| 7.2ml/r Large Displacement | Provides ample hydraulic flow for light, responsive steering on 2.8L diesel engines — rated flow 7.0L/min |
| 98bar High-Pressure Output | Powerful steering assistance significantly reduces driver fatigue — maximum pressure 98bar (approx. 1,421psi) |
| Wide Speed Range (500–5,000r/min) | Consistent assistance from idle to high speed — covers entire engine operating range |
| Integrated Flow Control & Relief Valve | Automatically regulates output flow and prevents system overpressure — protects steering gearbox and other components |
| High-Strength Aluminum Alloy Body | Lightweight design with excellent heat dissipation — extends service life |
| Standard Ports (Inlet φ17.5/Outlet M16*1.5) | Direct OEM replacement — no modifications needed; 98.5% fitment rate |
| 100% Triple Factory Testing | Every pump undergoes pressure, flow, and leak testing — ready to use out of the box |
| 12-Month Warranty | Peace of mind on manufacturing defects — free replacement within warranty period |
Quality Control & Verification
| QC Item | Verification Method | Standard |
|---|---|---|
| Pump Body Material | Spectrographic analysis | Meets aluminum alloy grade standard |
| Critical Dimensions | CMM coordinate measuring machine | Mounting holes and shaft bore within tolerance |
| Displacement Verification | Dedicated flow test bench | 7.2ml/r ± tolerance |
| Pressure Test | Hydraulic test bench | Maximum pressure ≥98bar |
| Flow Test | Flow meter | Rated flow ≥7.0L/min |
| Leak Test | Pressure hold test | No internal or external leakage |
| Noise Test | Sound level meter | Operating noise ≤75dB |
| Durability Test | Bench cycle test | Simulated 10,000-hour service life |
Installation & Maintenance Recommendations
IMPORTANT: The power steering pump is a critical component of the steering system. Improper installation may cause loss of power steering assistance, affecting driving safety. Installation should be performed by qualified professionals.
Installation Guidelines (Refer to workshop manual):
- Safety Prep — Disconnect battery negative terminal; ensure engine is cooled
- Drain Steering Fluid — Remove return hose; drain old steering fluid
- Remove Old Pump — Release belt tensioner; remove drive belt; remove pump mounting bolts (mark hose connection positions)
- Clean Mounting Surface — Thoroughly clean mounting bracket and hose fittings
- Install New Pump — Mount new pump; torque mounting bolts to workshop manual specification (must use torque wrench)
- Connect Hoses — Connect high-pressure and return hoses; ensure proper sealing
- Install Belt — Install drive belt; adjust tension to specification
- Fill Steering Fluid — Fill with ISUZU-specified power steering fluid (PSF)
- Bleed System — Start engine; turn steering wheel lock-to-lock (without holding at full lock) repeatedly to purge air
- Check Fluid Level — With engine idling, check and top up fluid to proper level
- Road Test — Perform road test — confirm light steering, no noise, no leaks
Maintenance Schedule:
| Item | Interval |
|---|---|
| Steering Fluid Check | Every 10,000 km or 6 months |
| Steering Fluid Replacement | Every 40,000 km or 2 years |
| Belt Inspection/Replacement | Every 20,000 km |
| Pump Replacement | When noise, leaks, heavy steering occur; or at 200,000 km |
Packaging & Supply
- Packaging: Neutral carton / Color box / Custom branded packaging
- Packaging Unit: 1 piece/box
- Delivery Time: 15–20 days after payment confirmation
- MOQ: Small orders accepted; volume discounts available
- Target Customers: Truck parts wholesalers, repair chain stores, fleet purchasers, cross-border e-commerce sellers
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