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Yimi (Guangzhou) Automotive Parts Co, Ltd

  • China,Guangzhou
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China ISUZU NKR77 4JH1 Door Regulator Assembly with Cable-Driven Single-Rail Lifting
China ISUZU NKR77 4JH1 Door Regulator Assembly with Cable-Driven Single-Rail Lifting

  1. China ISUZU NKR77 4JH1 Door Regulator Assembly with Cable-Driven Single-Rail Lifting

ISUZU NKR77 4JH1 Door Regulator Assembly with Cable-Driven Single-Rail Lifting

  1. MOQ: 20 PCS
  2. Price: Negotiable
  3. Get Latest Price
Payment Terms T/T
Net Weight 1.5–1.77 kg
Delivery Time 5-8 Work Days
Endurance Testing 20,000+ Cycles
Packaging Details Neutral Package or as customers’ request
Position Front Left-Hand (Driver Side)
Operation Type Power / Electric (24V)
Supply Ability 10000 pcs/month
Material High-Strength Structural Steel with Galvanized Plating
Mechanism Type Cable-Driven Single-Rail Lifting Mechanism
Model Number NKR77 4JH1
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 Net Weight 1.5–1.77 kg
Delivery Time 5-8 Work Days Endurance Testing 20,000+ Cycles
Packaging Details Neutral Package or as customers’ request Position Front Left-Hand (Driver Side)
Operation Type Power / Electric (24V) Supply Ability 10000 pcs/month
Material High-Strength Structural Steel with Galvanized Plating Mechanism Type Cable-Driven Single-Rail Lifting Mechanism
Model Number NKR77 4JH1 Certification ISO/TS16949
Brand Name YIMI Place of Origin CHINA
High Light Cable-Driven Single-Rail Lifting Mechanism Door Regulator Assembly ,High-Strength Structural Steel Power Window Regulator ,20000+ Cycles Endurance Testing Window Regulator
ISUZU NKR77 4JH1 Door Regulator Assembly 8978681142 8-97868114-2 OEM Fit
Product Overview

Door Regulator Assembly 8978681142 8-97868114-2 for ISUZU NKR77 NPR NQR NPS — Verified OEM Fit Front Left Power Window Regulator (Without Motor), 24V

This window regulator is a critical door system component responsible for raising and lowering the driver-side door window smoothly and reliably under commercial fleet operating conditions.

Working Principle

The power window regulator converts the rotational force of the electric motor into vertical window glass movement. This regulator features a cable-driven single-rail lifting mechanism with a hardened-steel linkage structure and reinforced pivot points. This is a complete regulator assembly without the motor — designed to reuse the original factory motor.

Failure Symptoms
  • Window moves slowly or erratically
  • Window falls down or will not stay up
  • Grinding or scraping noise when operating the window
  • Window binds or jams in the track
  • Visible cable damage or regulator arm deformation
Critical Inspection Note: ISUZU service manuals require that the door regulator assembly be replaced as a complete unit when any part of the mechanism fails.
Technical Specifications
Verification Item Data / Standard
Part Number (Short) 8978681142
Part Number (Long) 8-97868114-2
Vehicle Models ISUZU NKR77 / NPR / NQR / NPS / NPR-HD / NRR / ELF
Engine Compatibility 4JH1 / 4JH1-TC / 4HE1 / 4HG1 / 4HK1
Position Front Left-Hand (Driver Side)
Operation Type Power / Electric (24V)
Motor Included No (Reuse Factory Motor)
Mechanism Type Cable-Driven Single-Rail Lifting Mechanism
Material High-Strength Structural Steel with Galvanized Plating
Net Weight 1.5–1.77 kg
Endurance Testing 20,000+ Cycles
Certification ISO/TS 16949
Product Image
ISUZU Door Regulator Assembly 8978681142 showing detailed construction and mounting points
Part Number: 8978681142 8-97868114-2
Car Model: NKR77
Engine Model: 4JH1
Condition: 100% Brand New
Vehicle & Engine Compatibility
Primary Applications
Brand Model Chassis Engine Years
ISUZU ELF NKR77 4JH1-TC 2002–2007
ISUZU ELF NKR77 4JH1 2003–2007
ISUZU NPR NPR75 4HK1-T 2005–2008
ISUZU NPR NPR77 4JH1-TC 2003–2007
ISUZU NQR NQR70 4HE1T 1996–2005
ISUZU NQR NQR71 4HG1 1996–2005
ISUZU NQR NQR75 4HK1-TCS 2005–2008
ISUZU NPS NPS70 4HE1T 2003–2005
ISUZU NPS NPS71 4HG1 1996–2005
ISUZU NPS NPS75 4HK1T 2005–2008
ISUZU NPR-HD NPR-HD 4HK1 1999–2010
Non-ISUZU Applications (Same Platform)
Brand Model Application
Chevrolet W3500 / W4500 / W5500 Tiltmaster Light Truck
GMC W3500 / W4500 / W5500 Forward Light Truck
Nissan Atlas PB-AKR81 Light Truck
Important Fitment Notes:
  • This regulator is designed for the front left-hand (driver side) position
  • This is a power window regulator without motor — the original factory 24V motor is reused
  • Always inspect the window glass channel and guide rails for wear or debris before installation
Fitment Verification: To ensure 100% accurate matching, please provide the VIN or chassis number before ordering.
Features & Benefits
High-Strength Structural Steel Construction
Provides structural strength and long service life under commercial fleet use
Galvanized Anti-Corrosion Plating
Withstands high humidity and severe coastal road weather
Cable-Driven Single-Rail Mechanism
Ensures consistent lift speed and reliable mechanical engagement
20,000+ Cycle Endurance Testing
Simulates years of heavy-duty truck cabin operations without failure
Seamless Factory Motor Integration
Precision gear teeth and mounting holes perfectly fit the existing factory 24V motor
OEM-Exact Fitment
Direct replacement without modification
Quality Control
QC Item Verification Method / Standard
Mounting Bracket Dimensions CMM, 100% inspection
Guide Rail Geometry CMM, 100% inspection
Cable Tension Tension tester, 100% inspection
Motor Gear Engagement Functional test, 100% inspection
Lift Travel Range Functional test, 100% inspection
Surface Finish Visual + coating thickness inspection
Cycle Endurance Test 20,000+ cycle test, batch sampling
Installation Guidelines
IMPORTANT: Door window regulator installation requires removal of the door trim panel and careful handling of the window glass.
  1. Preparation: Lower the window completely. Disconnect the battery negative terminal.
  2. Removal: Support the window glass. Remove regulator mounting bolts and disconnect motor.
  3. Inspection: Inspect window glass channel and guide rails for wear or damage.
  4. Preparation for New Regulator: Verify dimensions and apply silicone grease.
  5. Installation: Install factory motor onto new regulator and mount in door cavity.
  6. Window Glass Attachment: Attach window glass to regulator carrier.
  7. Final Check: Test window operation through full range of motion.
  8. Road Test: Verify proper operation from driver's seat.
Packaging & Supply
  • Standard Packaging: Anti-rust oil + VCI film + neutral carton
  • Custom Packaging: Neutral box, color box, or customer-branded packaging
  • Suitable For: Body repair shops, ISUZU parts distributors, fleet maintenance centers
  • Supply Capacity: Stable batch supply with batch-level quality reports
  • Minimum Order Quantity: 5 PCS

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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