ISUZU OEM Standard Drag Link Assembly High-Strength Steel ISO/TS16949 Certified for NPR 4HG1
Basic Properties
Place of Origin:
CHINA
Brand Name:
YIMI
Certification:
ISO/TS16949
Model Number:
NPR 4HG1
Trading Properties
Minimum Order Quantity:
20 PCS
Price:
Negotiable
Payment Terms:
T/T
Supply Ability:
10000 pcs/month
Specifications
| Net Weight: | 5.0 Kg | Material: | High-strength Steel |
| Compatible Models: | ISUZU NPR, NQR, 700P | Compatible Engines: | ISUZU 4HG1, 4HK1 |
| OEM Part Number: | 8-87034286-0 / 8870342860 | Associated Number: | 8-98006794-0 / 8980067940 |
| Installation Position: | Between Pitman Arm And Steering Knuckle Arm | Part Type: | Steering System Linkage Assembly |
| High Light: | OEM Standard Drag Link Assembly,High-Strength Steel Drag Link Assembly,ISO/TS16949 Certified Drag Link Assembly |
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Product Description
ISUZU Drag Link 8-87034286-0 8870342860 for NPR 4HG1 — OEM Standard Steering System Component
Product Overview
The ISUZU Drag Link Assembly with OEM numbers 8-87034286-0 / 8870342860 is a precision-engineered replacement designed for ISUZU NPR series trucks, compatible with 4HG1 diesel engines. This component is a core part of the vehicle's steering system — the Straight Pull Rod Assembly — responsible for transmitting motion from the steering pitman arm to the steering knuckle for wheel steering control.
Numbering Note: This product number is 8-87034286-0 / 8870342860. Cross-reference numbers include 8-98006794-0 / 8980067940. Same series also includes 8-87034286-1 / 8870342861. Please verify the specific number based on actual vehicle configuration.
Working Principle
The drag link is a critical force transmission component of the mechanical steering system, installed between the pitman arm and the steering knuckle arm. Its working principle includes:
- Force Transmission: When the driver turns the steering wheel, the steering gear converts rotational motion into pitman arm oscillation; the drag link transmits this oscillation to the steering knuckle to steer the wheels.
- Joint Connection: The drag link connects to the pitman arm and steering knuckle arm via ball joints at both ends, allowing free rotation at various angles for steering flexibility under different suspension travel conditions.
- Impact Bearing: During vehicle operation, the drag link bears impact loads from the road surface and steering resistance — one of the most complex load-bearing components in the steering system.
Failure Symptoms
Inspect immediately if any of these symptoms occur:
| Symptom | Probable Cause |
|---|---|
| Excessive steering play; increased steering wheel free play | Worn drag link ball joints; increased clearance |
| Vehicle wanders at highway speeds; requires constant steering correction | Loose ball joints causing alignment changes |
| "Clunking" metallic noise when turning or driving over bumps | Severely worn ball joints or loss of lubrication |
| Uneven tire wear (excessive inner or outer edge wear) | Worn drag link preventing proper toe-in retention |
| Visual inspection shows torn dust boot or grease leakage | Worn/damaged dust boot; debris contamination accelerating wear |
Product Specifications
Verifiable Data: Based on Industry Standards & General Validation
- Product Certification: Manufactured under ISO/TS16949 automotive quality management system certification
- Brand Background: Supplied by IZUMI brand with mature production systems
- Product Net Weight: 5.0 kg
- HS Code: 870894000
- Compatible Models: ISUZU NPR, NQR, 700P series
- Compatible Engines: ISUZU 4HG1, 4HK1
- Condition: Brand New — 100% quality inspected
- Warranty: Per supplier policy (typically 6–12 months)
- Supply Capacity: 1000 pieces/month
- Delivery Time: 5–8 working days
Technical Details
| Part Number: | 8-87034286-0 8870342860 |
| Car Model: | NPR |
| Engine Model: | 4HG1 |
| Condition: | 100% Brand New |
| Material: | High-strength aluminum alloy & precision bearings |
| Main Market: | Middle East, Asia, Africa, South America, North America & Europe |
Vehicle & Engine Compatibility
| Brand | Model Series | Compatible Engine | Notes |
|---|---|---|---|
| ISUZU | NPR | 4HG1 | Light/medium-duty truck |
| ISUZU | NQR | 4HG1 | Medium-duty truck |
| ISUZU | 700P | 4HK1 | Medium-duty truck |
| ISUZU | NPR | 4HK1 | Light/medium-duty truck |
Important Fitment Warnings
- Number Confirmation: This product number is 8-87034286-0 / 8870342860. Same series includes 8-87034286-1 / 8870342861 and cross-reference 8-98006794-0 / 8980067940. Verify the specific number on the original part before ordering.
- Left/Right Side: Same series has 8-87034286-0 and 8-87034286-1 variations. Confirm which side needs replacement.
- Installation Torque: Refer to ISUZU factory workshop manual for drag link ball joint lock nut torque specifications. Wheel alignment is mandatory after installation.
- Post-Installation Inspection: Perform a full steering system function check — verify steering wheel free play is within specification, with no binding or unusual noise.
- Regular Inspection: Check the drag link dust boot for cracks, grease leakage, and abnormal ball joint clearance during each routine service.
Features & Benefits
ISO/TS16949 Quality Management Certified
Internationally recognized automotive industry quality standard — ensures full-process quality control from design to production
IZUMI Brand Professional Supply
Mature production systems and extensive industry experience — provides reliable automotive parts solutions
Precision Ball Joint Design
Ensures precise steering with zero play — enhances driving feel and safety; prevents uneven tire wear
High-Strength Steel Construction
Excellent impact and fatigue resistance — withstands steering loads under various operating conditions
100% Factory Quality Inspection
Every piece undergoes strict quality inspection — ensures zero-defect delivery
Broad OEM Cross-Compatibility
Replaces OEM numbers 8-87034286-0 / 8870342860; compatible with 8-98006794-0 / 8980067940
Quality Control & Verification
| QC Item | Inspection Method | Acceptance Criterion |
|---|---|---|
| Ball stud diameter | CMM | OEM standard size ± tolerance |
| Ball joint breakaway torque | Dedicated torque tester | Standard range |
| Axial clearance | Dial indicator / Fixture | ≤ standard value |
| Radial clearance | Dial indicator / Fixture | ≤ standard value |
| Dust boot seal integrity | Visual + compressed air test | No cracks, no leakage |
| Surface anti-corrosion | Salt spray test (ISO 9227) | No red rust |
Installation & Maintenance
IMPORTANT SAFETY NOTICE: The drag link is a critical steering system safety component that directly affects vehicle handling stability and driving safety. Professional installation with specialized tools is strongly recommended. Wheel alignment is mandatory after installation.
Installation Guidelines
- Preparation: Confirm installation position and part number (8-87034286-0). Prepare tools: Socket wrench, torque wrench, ball joint separator.
- Removing Old Drag Link: Park vehicle on level surface, engage parking brake, and securely support with jack stands. Remove lock nuts and use dedicated ball joint separator.
- Installing New Drag Link: Clean taper bores thoroughly. Install new drag link ensuring full taper contact. Torque lock nuts to specification.
- Post-Installation Checks: Perform steering flexibility check, free play check, mandatory wheel alignment, and road test.
Maintenance Schedule
| Item | Interval | Notes |
|---|---|---|
| Drag link dust boot inspection | Every 10,000 km / each service | Check for cracks, aging, grease leakage |
| Ball joint clearance check | Every 20,000 km | Check for abnormal looseness or noise |
| Full steering system inspection | Every 50,000 km | Includes all steering linkage components |
Packaging & Supply
| Packaging: | Neutral packaging or customized per customer request |
| Quantity per package: | 1 pc/box (standard shipment packaging) |
| Product Net Weight: | 5.0 kg |
| Brand: | IZUMI |
| Place of Origin: | Guangdong, China |
| Minimum Order Quantity: | 5–10 pieces |
| Delivery Time: | 5–8 working days |
| Supply Capacity: | 1000 pieces/month |
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