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High-strength cast iron Flywheel with 142-tooth ring gear and dynamically balanced for Isuzu NPR NKR 4HG1 4HF1 Truck
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High-strength cast iron Flywheel with 142-tooth ring gear and dynamically balanced for Isuzu NPR NKR 4HG1 4HF1 Truck
  • name
  • name

High-strength cast iron Flywheel with 142-tooth ring gear and dynamically balanced for Isuzu NPR NKR 4HG1 4HF1 Truck

MOQ: 2 pcs
Price: Negotiable
Standard Packaging: Neutral Package or as customers’ request
Delivery Period: 5-8 Work Days
Payment Method: T/T,Western Union
Supply Capacity: 10000 pcs/month
Detail Information
Product Description
Detail Information
Place of Origin
China
Brand Name
YIMI
Certification
ISO/TS16949
Model Number
Isuzu NPR NKR 4HG1 4HF1
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
Highlight:

cast iron flywheel for Isuzu NPR

,

142-tooth ring gear flywheel

,

dynamically balanced Isuzu truck flywheel

Product Description
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.

High-strength cast iron Flywheel with 142-tooth ring gear and dynamically balanced for Isuzu NPR NKR 4HG1 4HF1 Truck 0
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.

Tags: 

isuzu tfr parts,  

isuzu replacement parts,  

ISUZU Starter Motor

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Products
PRODUCTS DETAILS
Products

Isuzu Cars Parts

Isuzu Engine Parts

Isuzu Chassis Parts

ISUZU Truck Parts

VW Car Parts

AUDI Car Parts

QINGLING ISUZU Parts

NISSAN Spare Parts

MITSUBISHI Auto Parts

FUSO Truck Parts

TOYOTA Auto Parts

HINO Truck Parts

HONDA Auto Parts

MAZDA Spare Parts

JAC Spare Parts

JMC Spare Parts

FORD Auto Parts

HYUNDAI Auto Parts

KIA Auto Parts

Other Auto Parts
High-strength cast iron Flywheel with 142-tooth ring gear and dynamically balanced for Isuzu NPR NKR 4HG1 4HF1 Truck
  • name
  • name
High-strength cast iron Flywheel with 142-tooth ring gear and dynamically balanced for Isuzu NPR NKR 4HG1 4HF1 Truck
MOQ: 2 pcs
Price: Negotiable
Standard Packaging: Neutral Package or as customers’ request
Delivery Period: 5-8 Work Days
Payment Method: T/T,Western Union
Supply Capacity: 10000 pcs/month
Detail Information
Product Description
Detail Information
Place of Origin
China
Brand Name
YIMI
Certification
ISO/TS16949
Model Number
Isuzu NPR NKR 4HG1 4HF1
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
Minimum Order Quantity:
2 pcs
Price:
Negotiable
Packaging Details:
Neutral Package or as customers’ request
Delivery Time:
5-8 Work Days
Payment Terms:
T/T,Western Union
Supply Ability:
10000 pcs/month
Highlight

cast iron flywheel for Isuzu NPR

,

142-tooth ring gear flywheel

,

dynamically balanced Isuzu truck flywheel

Product Description
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.

High-strength cast iron Flywheel with 142-tooth ring gear and dynamically balanced for Isuzu NPR NKR 4HG1 4HF1 Truck 0
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.

Tags: 

isuzu tfr parts,

isuzu replacement parts,

ISUZU Starter Motor

Yimi (Guangzhou) Automotive Parts Co, Ltd
4F, 7th, No. 2, South Jinguu Road, Huadong Town, Huadu District, Guangzhou City
Tel: +86-17820569171
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