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Yimi (Guangzhou) Automotive Parts Co, Ltd

  • China,Guangzhou
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China ISUZU 4HK1 4HF1 Gear-Type Positive Displacement Oil Pump Assembly with
China ISUZU 4HK1 4HF1 Gear-Type Positive Displacement Oil Pump Assembly with

  1. China ISUZU 4HK1 4HF1 Gear-Type Positive Displacement Oil Pump Assembly with
  2. China ISUZU 4HK1 4HF1 Gear-Type Positive Displacement Oil Pump Assembly with
  3. China ISUZU 4HK1 4HF1 Gear-Type Positive Displacement Oil Pump Assembly with

ISUZU 4HK1 4HF1 Gear-Type Positive Displacement Oil Pump Assembly with

  1. MOQ: 20 PCS
  2. Price: Negotiable
  3. Get Latest Price
Payment Terms T/T
H/S Code 8413300005
Pump Type Gear-Type Positive Displacement
Delivery Time 5-8 Work Days
Relief Valve Integrated Pressure Relief Valve
Packaging Details Neutral Package or as customers’ request
Engine Compatibility 4HK1 / 4HF1 / 4HE1 / 4HG1 / 4HG1-T
Supply Ability 10000 pcs/month
OEM Part Number 8-98017585-1 / 8980175851
Oil Pump Bolt Torque 25 N·m (18 lb ft)
Material High-Strength Cast Iron
Net Weight 1.2 kg
Model Number 4HK1 4HF1
Certification ISO/TS16949
Brand Name YIMI
Place of Origin CHINA

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  1. Product Details
  2. Company Details

Product Specification

Payment Terms T/T H/S Code 8413300005
Pump Type Gear-Type Positive Displacement Delivery Time 5-8 Work Days
Relief Valve Integrated Pressure Relief Valve Packaging Details Neutral Package or as customers’ request
Engine Compatibility 4HK1 / 4HF1 / 4HE1 / 4HG1 / 4HG1-T Supply Ability 10000 pcs/month
OEM Part Number 8-98017585-1 / 8980175851 Oil Pump Bolt Torque 25 N·m (18 lb ft)
Material High-Strength Cast Iron Net Weight 1.2 kg
Model Number 4HK1 4HF1 Certification ISO/TS16949
Brand Name YIMI Place of Origin CHINA
High Light Gear-Type Positive Displacement Oil Pump Assembly ,Integrated Pressure Relief Valve Engine Lubrication Pump ,High-Strength Cast Iron Oil Pump
ISUZU 4HK1 4HF1 Oil Pump Assembly 8-98017585-1 8980175851 OEM Fit
Product Overview

Oil Pump Assembly with OEM numbers 8-98017585-1 and 8980175851 is a verified direct-fit replacement for ISUZU NPR/NQR/NRR light and medium-duty trucks equipped with 4HK1/4HF1/4HE1/4HG1 diesel engines. This critical engine lubrication component draws oil from the oil pan and delivers pressurized oil to all moving engine components, ensuring proper lubrication and extending engine service life.

ISUZU 4HK1 4HF1 Oil Pump Assembly 8-98017585-1
Technical Specifications
Part Numbers 8-98017585-1, 8980175851, 8-98017-585-1, 8-98017585-KD
Engine Compatibility 4HK1, 4HF1, 4HE1, 4HG1, 4HG1-T
Pump Type Gear-Type Positive Displacement
Material High-Strength Cast Iron
Weight 1.2 kg
Torque Specification 25 N·m (18 lb ft)
Quality Certification ISO/TS 16949
Working Principle

This gear-type positive displacement pump is driven by the engine's timing gear train. It draws engine oil from the oil pan through a pickup screen, pressurizes it, and delivers it through the oil filter to the main oil gallery for distribution to critical lubrication points including crankshaft bearings, camshaft bearings, and turbocharger. The integrated pressure relief valve regulates oil pressure by bypassing excess oil back to the sump when pressure exceeds preset thresholds.

Failure Symptoms
  • Low oil pressure warning light illumination
  • Engine knocking or abnormal noise from bottom end
  • Oil pressure drops at idle when engine is hot
  • Metal debris in the oil pan
  • Oil leakage at pump mounting surface
  • Turbocharger failure due to inadequate oil supply
Vehicle Applications
Brand Model Engine Years
ISUZU NPR, NQR, NRR 4HK1-T, 4HF1, 4HG1 1998-2016
ISUZU ELF, FSR 4HK1, 4HF1 1998-2016
Chevrolet W3500/W4500/W5500 4HK1, 4HF1 1998-2010
GMC W4500 Forward 4HK1, 4HF1 1998-2010
Key Features & Benefits
Gear-Type Design

Consistent oil flow and reliable pressure across all engine speeds

Integrated Relief Valve

Prevents over-pressurization and protects engine seals

Cast Iron Construction

Withstands extreme temperatures and pressures for long service life

Precision Ground Gears

Minimizes internal leakage and maintains consistent oil pressure

Installation Requirements
Important: Oil pump installation requires engine overhaul-level operation and must be performed by qualified diesel technicians in a clean workshop environment.
  • Always inspect and clean oil pickup screen and oil pan before installation
  • Never reuse old oil pump gaskets
  • Apply clean engine oil to pump gears before installation
  • Tighten oil pump fixing bolts to 25 N·m (18 lb ft)
  • Verify oil pressure with mechanical gauge after installation
Quality Control

Each pump undergoes comprehensive quality control including dimensional inspection with CMM, pressure testing, flow rate verification, material hardness testing, and visual inspection to ensure no cracks, porosity, or burrs.

Packaging & Supply
  • Standard packaging: Anti-rust oil + VCI film + neutral carton
  • Custom packaging options available
  • Minimum order quantity: 2 pieces
  • Stable batch supply with quality reports

Company Details

Bronze Gleitlager

,

Bronze Sleeve Bushings

 and 

Graphite Plugged Bushings

 from Quality China Factory
  • Business Type:

    Manufacturer,Distributor/Wholesaler,Exporter,Trading Company,Seller

  • Year Established:

    2005

  • Total Annual:

    8000000-10000000

  • Employee Number:

    100~150

  • Ecer Certification:

    Verified Supplier

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 ...

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Get in touch with us

  • Reach Us
  • Yimi (Guangzhou) Automotive Parts Co, Ltd
  • Unit 1313, Building 5, Changsheng DDP Fashion Center, No. 17 Dachi Road, Tancun, Shijing Subdistrict, Baiyun District, Guangzhou City.
  • https://www.isuzucarsparts.com/

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