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Yimi (Guangzhou) Automotive Parts Co, Ltd

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China High-strength cast iron Flywheel with 142-tooth ring gear and dynamically
China High-strength cast iron Flywheel with 142-tooth ring gear and dynamically

  1. China High-strength cast iron Flywheel with 142-tooth ring gear and dynamically
  2. China High-strength cast iron Flywheel with 142-tooth ring gear and dynamically

High-strength cast iron Flywheel with 142-tooth ring gear and dynamically

  1. MOQ: 2 pcs
  2. Price: Negotiable
  3. Get Latest Price
Payment Terms T/T,Western Union
Supply Ability 10000 pcs/month
Delivery Time 5-8 Work Days
Packaging Details Neutral Package or as customers’ request
Diameter 12-inch (304.8 mm)
Ring gear teeth 142-tooth
Bolt circle 9.440-inch
Material High-strength cast iron / steel
Runout tolerance ≤ 0.15 mm / 0.0059 in
Surface finish Ra ≤ 3.2 μm
Dynamic balance ISO 1940-1 Grade G6.3
Ring gear hardness HRC 45-52
Brand Name YIMI
Model Number Isuzu NPR NKR 4HG1 4HF1
Certification ISO/TS16949
Place of Origin China

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  1. Product Details
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Product Specification

Payment Terms T/T,Western Union Supply Ability 10000 pcs/month
Delivery Time 5-8 Work Days Packaging Details Neutral Package or as customers’ request
Diameter 12-inch (304.8 mm) Ring gear teeth 142-tooth
Bolt circle 9.440-inch Material High-strength cast iron / steel
Runout tolerance ≤ 0.15 mm / 0.0059 in Surface finish Ra ≤ 3.2 μm
Dynamic balance ISO 1940-1 Grade G6.3 Ring gear hardness HRC 45-52
Brand Name YIMI Model Number Isuzu NPR NKR 4HG1 4HF1
Certification ISO/TS16949 Place of Origin China
High Light cast iron flywheel for Isuzu NPR142-tooth ring gear flywheeldynamically balanced Isuzu truck flywheel
Flywheel 8-97115782-0 For Isuzu NPR NKR 4HG1 4HF1 Truck 8971157820
Product Overview

Function: A high-strength flywheel that stores rotational energy, smooths engine power pulses, and provides a friction surface for the clutch disc to engage. It is a critical component for power delivery, drivability, and clutch life.

The Engine Flywheel (OEM Number: 8-97115782-0 / 8971157820) is a premium-quality, direct replacement engine component designed specifically for a wide range of ISUZU N-series medium-duty trucks (NKR, NPR, NQR, NPS), as well as F-series and C-series chassis, equipped with the highly regarded 4HF1 4.3L and 4HG1 4.6L diesel engines. This component is also directly compatible with the 4HE1T and 4HG1T turbocharged variants.

Isuzu Flywheel 8-97115782-0 for NPR NKR trucks
Product Specifications
Part Number: 8971157820 8-97115782-0 Product Name: Flywheel
Car Model: Isuzu NPR NKR Engine Model: Isuzu 4HG1 4HF1
Condition: 100% Brand New Size: Standard
Weight: Standard Origin: China Mainland
Main Market: Middle East, Asia, Africa, South America, North America & Europe
Package: Neutral Packing Or Make It As Requested
Material: High-strength forged steel Installation: Direct OEM replacement
Quality Standard: OEM equivalent / ISO quality control
Vehicle Compatibility

Please verify fitment using your specific chassis number, VIN, or original part number before ordering.

ISUZU Light & Medium-Duty Trucks (N-Series)
Chassis / Model Engine Years / Notes
ISUZU NKR66 / NKR66 E 4HF1 (4.3L) 1994–2005 — Light/medium truck, primary fitment
ISUZU NPR66 / NPR66 E 4HF1 (4.3L) 1994–2005 — Medium-duty truck, primary fitment
ISUZU NPS66 4HF1 (4.3L) 1994–1996 (4×4 variant)
ISUZU NKR77 / NKR77 E 4HG1, 4JJ1 4‑cylinder diesel variants
ISUZU NPR71 4HG1 / 4HG1T (4.6L) 1996–2003
F-Series & C-Series Trucks
Chassis / Model Engine Notes
ISUZU FTR, FVR, FRR, FSR 4HE1, 4HF1, 4HG1, 6HK1, 6HH1 Medium-heavy duty truck, early 2000s models
ISUZU CXZ, NQR 4HG1-T, 4HE1-XS Heavy-duty and vocational truck applications
Signs of Flywheel Wear
  • Clutch chatter / judder on take-off (warped or heat-scored friction surface)
  • Vibration felt through the driveline at specific RPM ranges (flywheel imbalance)
  • Grinding noise when starting the engine (worn starter ring gear teeth)
  • Hot spots / heat cracks / blueing visible on the friction surface (indicates thermal stress)
  • Runout measured with a dial indicator exceeds service limit (≥ 0.15 mm / 0.0059 in)
Features & Advantages
  • OE Quality: Manufactured to strict ISUZU OEM dimensional and material standards
  • Precision-Machined Friction Surface: Ground to mirror-like finish for smooth engagement
  • Dynamically Balanced: Factory-balanced to ISO 1940-1 Grade G6.3 to minimize vibration
  • Forged Steel Construction: Superior durability compared to cast alternatives
  • 142-Tooth Ring Gear: Factory-spec tooth profile for positive starter engagement
  • Runout Guaranteed: Inspected for flatness and radial runout (≤ 0.15 mm)
  • Long Service Life: Designed for heavy-duty commercial operation
Quality Control
  • Material Verification: Forged steel composition tested to JIS/SAE standards
  • Dimensional Accuracy: Verified against OE blueprints using CMM equipment
  • Runout & Flatness Inspection: 100% checked with dial indicator
  • Ring Gear Hardness Test: Tooth hardness verified on batch samples
  • Dynamic Balancing: Balanced to ISO 1940-1 Grade G6.3
  • ISO 9001:2015 / IATF 16949 Certified: Facility meets international quality standards
Inquiry & Ordering

For pricing, availability, or bulk purchase of the ISUZU Flywheel 8-97115782-0 (8971157820) for NKR, NPR, NQR, 4HF1, 4HG1, 4HE1 engine applications, please contact our sales team for a competitive wholesale quote and expert technical support.

We respond to all inquiries within 24 hours.

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 automotiv... 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 automotiv...

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Get in touch with us

  • Reach Us
  • Yimi (Guangzhou) Automotive Parts Co, Ltd
  • 4F, 7th, No. 2, South Jinguu Road, Huadong Town, Huadu District, Guangzhou City
  • https://www.isuzucarsparts.com/

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