ISUZU Oil Pump Assembly OEM Standard Replacement Compatible with 4HF1 Engine ISO/TS16949 Certified
Basic Properties
Place of Origin:
CHINA
Brand Name:
YIMI
Certification:
ISO/TS16949
Model Number:
NPR66 4HF1
Trading Properties
Minimum Order Quantity:
20 PCS
Price:
Negotiable
Payment Terms:
T/T
Supply Ability:
10000 pcs/month
Specifications
| Net Weight: | 1.2 Kg | Product Dimensions: | 41 × 39 × 30 Cm |
| Material: | Metal | Compatible Engines: | ISUZU 4HF1, 4HE1, 4HG1, 4HK1 |
| Installation Position: | Engine Bottom / Inside Oil Pan | Extended Engine Compatibility: | ISUZU 4HF1-2, 4HE1-T, 4HE1-TC, 4HG1-T |
| High Light: | OEM Standard Replacement Oil Pump Assembly,Compatible with ISUZU 4HF1 Engine PUMP ASM; OIL,ISO/TS16949 Certified Engine Lubrication System Component |
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Product Description
ISUZU Oil Pump Assembly 8-97147338-0 8971473380 for NPR66 4HF1 — 1.2kg OEM Standard
Product Overview
The ISUZU Oil Pump Assembly with OEM numbers 8-97147338-0 / 8971473380 is a precision-engineered replacement designed for ISUZU NPR66 series trucks, compatible with 4HF1 diesel engines. This component is a core part of the engine's lubrication system — the Oil Pump Assembly (PUMP ASM; OIL) — responsible for pressurizing and circulating engine oil to all critical moving parts.
Numbering Note: This product number is 8-97147338-0 / 8971473380. Associated numbers include 8-98017585-0 / 8980175850 and L210-0033S. The right-hand version is 8-97147338-1 / 8971473381. Brands include IZUMI and BZLP. A factory number 8-97147338-GQ also exists. Please verify the specific number based on actual vehicle configuration.
Working Principle
The oil pump is the "heart" of the engine's lubrication system, typically driven by the crankshaft via gears or a chain. Its working principle includes:
- Oil Intake: The oil pump draws oil from the oil pan through the inlet port.
- Pressurization: Internal gears or rotors pressurize the oil and deliver it to the engine's main oil gallery.
- Forced Lubrication: Pressurized oil flows through the engine's internal oil passages to all friction points — crankshaft main journals, connecting rod big ends, camshaft journals, valve rockers, and more.
- Cooling & Cleaning: The flowing oil also carries away friction-generated heat and metal particles, which are filtered through the oil filter before recirculation.
Failure Symptoms
Inspect immediately if any of these symptoms occur:
| Symptom | Probable Cause |
|---|---|
| Oil pressure warning light on dashboard | Severely worn oil pump; insufficient pumping pressure |
| Increased engine noise (especially main and rod bearing knocking) | Insufficient oil pressure causing bearing lubrication failure |
| Consistently low oil pressure gauge reading | Worn internal gears/rotors; reduced volumetric efficiency |
| Engine overheating | Insufficient oil circulation; unable to effectively dissipate heat |
| Clogged oil pump strainer found during oil pan removal | Oil pump unable to draw oil properly |
Product Specifications
Product Certification
Manufactured under ISO/TS16949 automotive quality management system certification
Brand Background
Supplied by IZUMI and BZLP brands with 20 years of ISUZU auto parts industry experience
Net Weight
1.2kg (Some suppliers list 1.3kg)
Product Dimensions
41 × 39 × 30 cm
HS Code
841330000
Material
Metal
Quality Grade
High Quality
Compatible Engines
ISUZU 4HF1, 4HE1, 4HG1, 4HK1
Extended Engine Compatibility
ISUZU 4HF1-2, 4HE1-T, 4HE1-TC, 4HG1-T
Compatible Models
ISUZU NPR66, NKR, NPR, NQR, NRR
Condition
Brand New — 100% quality inspected
Warranty
1 year
Supply Capacity
10000 sets/month
Delivery Time
5–8 working days
Vehicle & Engine Compatibility
Primary Applications
| Brand | Model | Chassis | Compatible Engine | Years | Displacement |
|---|---|---|---|---|---|
| ISUZU | NPR | NPR66 | 4HF1 | 1999–2009 | 4.3L |
| ISUZU | NPR | NPR | 4HE1 | 1998–2004 | 4.8L |
| ISUZU | NPR | NPR | 4HG1T | 2000–2016 | 4.6L |
| ISUZU | NPR | NPR | 4HK1 | 2005–2009 | 5.2L |
| ISUZU | NPR-HD | — | 4HE1 / 4HK1 | 1999–2010 | 4.8L / 5.2L |
| ISUZU | NQR | — | 4HE1 / 4HK1 | 1998–2010 | 4.8L / 5.2L |
| ISUZU | NRR | — | 4HK1 | 2005–2010 | 5.2L |
Data Source Note: Years and displacement data above are based on industry-standard compatibility data. Please verify actual vehicle nameplate for specific model years.
Important Fitment Warnings
- Number Confirmation: This product number is 8-97147338-0 / 8971473380. Associated numbers include 8-98017585-0 / 8980175850 and L210-0033S. Verify the specific number on the original part before ordering.
- Associated Components: When replacing the oil pump, it is recommended to replace the oil filter simultaneously and thoroughly clean the oil pan and strainer.
- Installation Torque: Refer to ISUZU 4H series engine factory workshop manual for oil pump mounting bolt torque specifications.
- Oil Fill: After oil pump replacement, fill with the correct capacity of API-standard diesel engine oil and check oil pressure.
- Break-in: Allow the engine to idle briefly after installation to check for abnormal noise and leaks.
- Professional Installation: The oil pump is a critical engine lubrication system component — professional installation is strongly recommended.
Features & Benefits
ISO/TS16949 Quality Management Certified
Internationally recognized automotive industry quality standard — ensures full-process quality control
IZUMI / BZLP Brand Professional Supply (20 Years Experience)
Mature production systems and extensive industry experience — provides global customers with reliable automotive parts solutions
Precision Metal Construction
Excellent wear resistance and fatigue strength for long-term reliable operation under high-speed, high-load conditions — engineered for ISUZU 4H series engine applications
100% Factory Quality Inspection
Every piece undergoes strict quality inspection — 100% tested
Broad OEM Cross-Compatibility
Replaces OEM numbers 8-97147338-0 / 8971473380; compatible with 8-98017585-0, 8980175850, L210-0033S and other numbers — simplifies sourcing for repair shops
Broad Engine Compatibility
Fits 4HF1, 4HE1, 4HG1, 4HK1 engines — compatible with NPR66, NKR, NPR, NQR, NRR models
1-Year Warranty
Reliable after-sales protection — 1-year quality guarantee
Installation & Maintenance Recommendations
IMPORTANT SAFETY NOTICE: The oil pump is a critical engine lubrication system component — improper installation may cause severe engine damage. Professional installation is strongly recommended.
Installation Guidelines (Reference Workshop Manual)
Preparation:
- Confirm installation position and part number (8-97147338-0)
- Prepare tools: Socket wrench, torque wrench, sealant
- Recommended to also prepare: Oil filter, new engine oil, oil pan gasket
Removing Old Oil Pump (Reference Steps):
- Park vehicle on level surface and engage parking brake.
- Drain old oil into a clean container.
- Remove the oil pan.
- Remove oil pump mounting bolts.
- Carefully remove the old oil pump, check the strainer for debris.
Installing New Oil Pump (Installation Sequence):
- Clean mounting surface: Thoroughly clean the oil pump mounting surface — ensure no oil or debris.
- Inspect strainer: Check the strainer for blockage — replace if necessary.
- Install new oil pump: Position the new pump correctly and torque mounting bolts to specification (refer to ISUZU 4H series workshop manual).
- Install oil pan: Install the new oil pan gasket and torque bolts to specification.
- Fill oil: Fill with the correct capacity of API-standard diesel engine oil.
- Start test: Start the engine and check oil pressure, abnormal noise, and leaks.
Packaging & Supply
Packaging
Neutral packaging or customized per customer request
Quantity per package
1 pc/box (standard shipment packaging)
Product Net Weight
1.2 kg
Product Dimensions
41 × 39 × 30 cm
Brand
IZUMI / BZLP
Place of Origin
China
Customization Options
OEM custom packaging / neutral packaging / private labeling
Minimum Order Quantity
1 piece
Delivery Time
5–8 working days
Supply Capacity
10000 sets/month
Payment Terms
T/T, Western Union
Warranty
1 year
HS Code
841330000
Target Customers
Truck parts wholesalers, light/medium-duty truck repair shops, fleet purchasers, export traders
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