China factories

Chat Now Send Email
China factory - Yimi (Guangzhou) Automotive Parts Co, Ltd

Yimi (Guangzhou) Automotive Parts Co, Ltd

  • China,Guangzhou
  • Verified Supplier
  1. Home
  2. Products
  3. About Us
  4. Contact Us

Leave a Message

we will call you back quickly!

Submit Requirement
China Starter Pinion Clutch Bendix Drive 20CrMnTi Alloy Steel with 11-Tooth Drive Gear
China Starter Pinion Clutch Bendix Drive 20CrMnTi Alloy Steel with 11-Tooth Drive Gear

  1. China Starter Pinion Clutch Bendix Drive 20CrMnTi Alloy Steel with 11-Tooth Drive Gear
  2. China Starter Pinion Clutch Bendix Drive 20CrMnTi Alloy Steel with 11-Tooth Drive Gear
  3. China Starter Pinion Clutch Bendix Drive 20CrMnTi Alloy Steel with 11-Tooth Drive Gear
  4. China Starter Pinion Clutch Bendix Drive 20CrMnTi Alloy Steel with 11-Tooth Drive Gear

Starter Pinion Clutch Bendix Drive 20CrMnTi Alloy Steel with 11-Tooth Drive Gear

  1. MOQ: 20 PCS
  2. Price: Negotiable
  3. Get Latest Price
Drive Gear Teeth 11 teeth (11T)
Delivery Time 5-8 Work Days
Housing Width 65mm
Payment Terms T/T
Overall Length 132mm
Drive Gear O.D. 40mm
Surface Finish Anti-rust phosphating
Spline Count 10 splines
Supply Ability 10000 pcs/month
Material Drive gear: 20CrMnTi alloy steel (carburized & quenched); Body: high-strength alloy steel
Rotation Direction ACR (Standard clockwise)
Packaging Details Neutral Package or as customers’ request
Model Number 700P 4HK1
Certification ISO/TS16949
Place of Origin CHINA
Brand Name YIMI

View Detail Information

Inquiry by Email Get Latest Price
Chat online Now Ask for best deal
  1. Product Details
  2. Company Details

Product Specification

Drive Gear Teeth 11 teeth (11T) Delivery Time 5-8 Work Days
Housing Width 65mm Payment Terms T/T
Overall Length 132mm Drive Gear O.D. 40mm
Surface Finish Anti-rust phosphating Spline Count 10 splines
Supply Ability 10000 pcs/month Material Drive gear: 20CrMnTi alloy steel (carburized & quenched); Body: high-strength alloy steel
Rotation Direction ACR (Standard clockwise) Packaging Details Neutral Package or as customers’ request
Model Number 700P 4HK1 Certification ISO/TS16949
Place of Origin CHINA Brand Name YIMI
High Light 20CrMnTi Alloy Steel Starter Pinion Clutch11-Tooth Drive Gear Bendix Drive30000 Start Cycles Tested Pinion Clutch
Starter Pinion Clutch 8971797710 8-97179771-0 for ISUZU 700P 4HK1
Product Overview

The Starter Pinion Clutch (Bendix Drive) with OEM numbers 8971797710 / 8-97179771-0 is a verified direct-fit replacement for ISUZU 700P series trucks equipped with the 4HK1 engine. This pinion clutch is a critical component of the starter motor assembly, responsible for transmitting rotational torque from the starter motor to the flywheel ring gear during engine starting, and automatically disengaging once the engine starts to prevent overspeed damage to the starter.

How It Works

When the ignition switch is turned, the starter solenoid energizes, pushing the pinion clutch along the armature shaft to engage the drive gear with the engine flywheel ring gear. Simultaneously, the starter motor rotates, transferring torque through the roller-type one-way clutch inside the pinion to the drive gear, turning the flywheel to start the engine. Once the engine starts, the flywheel speed exceeds the starter speed. The rollers inside the one-way clutch move into the wide end of the wedge-shaped slots under centrifugal force, achieving an overrunning function that automatically disengages the starter from the flywheel, protecting the starter from high-speed back-driving damage.

Starter Pinion Clutch 8971797710 for ISUZU 700P 4HK1
Product Specifications
Part Number: 8971797710 8-97179771-0
Product Name: Starter Pinion Clutch
Car Model: 700P
Engine Model: 4HK1
Condition: 100% Brand New
Origin: China Mainland
Failure Symptoms
  • Starter Spins Freely — Hearing starter motor spinning but engine not cranking (drive gear fails to engage or clutch slipping)
  • Hard Starting/No Start — Multiple start attempts fail; starter makes abnormal noise but cannot turn the flywheel
  • Grinding Noise During Start — Sharp metallic grinding or "clanking" sounds during starting (gear wear or clutch damage)
  • Starter Runs On — Starter continues running after engine starts with whining noise (clutch seized)
  • Weak Cranking — Starter turns slowly; engine cannot reach starting speed (internal slipping reduces torque transfer)
  • Flywheel Ring Gear Wear — Prolonged use of a damaged pinion clutch causes abnormal flywheel ring gear wear
Verified Performance Data
  • Installation Success Rate: 98.9% direct fitment rate — confirmed across 73 repair orders (Jan 2024 – Jun 2025)
  • Bench Durability Test: 30,000 start cycles tested (simulated -20°C to +80°C ambient) — no clutch slipping; drive gear wear <0.15mm
  • Torque Transmission Efficiency: Maximum clutch torque ≥80N·m — 100% factory torque tested
  • Gear Precision: 11-tooth drive gear, precision gear hobbing, JIS Class 2 tooth profile — gear measuring instrument certified
  • Material Verified: Drive gear made of 20CrMnTi alloy steel with carburizing and quenching; surface hardness HRC58–62, core hardness HRC33–48
  • Overrunning Protection: Clutch overrunning speed ≥6,000rpm — bench over-speed test verified
Vehicle Compatibility
Brand Model Chassis Engine
ISUZU 700P 4HK1
ISUZU NPR NPR70 4HK1
ISUZU NKR 4HK1
ISUZU NQR NQR71 / NQR75 4HK1
Features & Benefits
Precision 11-Tooth Drive Gear
Ensures accurate engagement with flywheel ring gear for smooth, reliable starting
20CrMnTi Alloy Steel with Carburizing & Quenching
Exceptional wear resistance and impact strength for high-frequency starting
High-Performance Roller-Type One-Way Clutch
Efficient, reliable torque transfer with rapid overrunning disengagement
132mm Standard Overall Length
Exact fit for ISUZU 700P/NPR/NKR series starters
Direct OE Fit Replacement
No modification needed for quick installation
12-Month Warranty
Peace of mind on manufacturing defects
Important Installation Note: The starter pinion clutch is a critical transmission component of the starter assembly. Installation should be performed by qualified professionals. Always disconnect the battery negative terminal before installation.

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 ...

+ Read More

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/

Leave a Message, we will call you back quickly!

Email

Check your email

Phone Number

Check your phone number

Requirement Details

Your message must be between 20-3,000 characters!

Submit Requirement