Yimi (Guangzhou) Automotive Parts Co, Ltd
| Friction Face Hardness | 180‑240 HB |
| Max Permissible Runout | ≤0.10 mm (face) / ≤0.05 mm (radial) |
| Outer Diameter | 350 mm |
| Payment Terms | T/T,Western Union |
| Ring Gear Teeth | 142T |
| Clutch Disc Diameter | 325 mm |
| Supply Ability | 10000 pcs/month |
| Delivery Time | 5-8 Work Days |
| Weight | 20 kg (44 lbs) |
| Packaging Details | Neutral Package or as customers’ request |
| Ring Gear OD | ≈ 375 mm |
| Material | Nodular cast iron (GGG60 / EN-GJS-400-15) |
| Brand Name | YIMI |
| Certification | ISO/TS16949 |
| Place of Origin | China |
| Model Number | ISUZU FRR 4HK1 |
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Product Specification
| Friction Face Hardness | 180‑240 HB | Max Permissible Runout | ≤0.10 mm (face) / ≤0.05 mm (radial) |
| Outer Diameter | 350 mm | Payment Terms | T/T,Western Union |
| Ring Gear Teeth | 142T | Clutch Disc Diameter | 325 mm |
| Supply Ability | 10000 pcs/month | Delivery Time | 5-8 Work Days |
| Weight | 20 kg (44 lbs) | Packaging Details | Neutral Package or as customers’ request |
| Ring Gear OD | ≈ 375 mm | Material | Nodular cast iron (GGG60 / EN-GJS-400-15) |
| Brand Name | YIMI | Certification | ISO/TS16949 |
| Place of Origin | China | Model Number | ISUZU FRR 4HK1 |
| High Light | 350mm ISUZU FRR 4HK1 flywheel ，nodular cast iron flywheel ，dynamically balanced heavy duty flywheel | ||
| Parameter | Specification | Notes |
|---|---|---|
| Outer Diameter | 350 mm (13.78 inches) | Standard for 4HK1 clutch system in FRR trucks |
| Friction Face Diameter | 325 mm (clutch disc contact area) | Matches OE clutch disc (e.g., 8-98164918-0) |
| Ring Gear Teeth | 142 teeth (or 144T - verify with original) | Induction-hardened for starter durability |
| Material | Nodular cast iron (GGG60 / EN-GJS-400-15) | High tensile strength, excellent damping |
| Balancing | Dynamically balanced (residual unbalance ≤ 10 g*cm) | Eliminates engine vibration |
| Weight | Approx. 18-22 kg (depending on exact casting) | Heavy-duty mass for torque smoothing |
| Component | Details |
|---|---|
| Engine | ISUZU 4HK1 (5.2L inline-4 turbo diesel) - 4HK1-TC, 4HK1-E, 4HK1-X (various power ratings: 150-210 hp, up to 588 Nm torque) |
| Transmission | MZZ6U (6-speed manual), MLD-6Q (6-speed), MYY-5S (5-speed) - confirm with your VIN |
| Vehicle Models | ISUZU FRR500, FRR600, FRR800 (medium-duty trucks, cab-over / tilt cab) |
| Years | Approx. 2005-2015 (4HK1 production period for FRR) |
| Feature | Benefit |
|---|---|
| Precision-cast nodular iron (GGG60) | Superior fatigue strength & damping - Absorbs crankshaft torsional vibrations better than standard gray iron |
| 350mm diameter - full friction surface | Maximizes torque transfer - Engineered for 4HK1's 588 Nm output |
| Induction-hardened ring gear (142T) | Starter engagement reliability - Hardened teeth resist wear and chipping |
| Dynamically balanced to ISO 1940-1 G6.3 | Zero vibration - Eliminates engine imbalance that can damage components |
| Direct OE replacement fit | No modifications - Bolt pattern and alignment match factory specifications |
| QC Item | Verification Method |
|---|---|
| Material composition | Spectrometer analysis per batch |
| Hardness (friction face) | Brinell hardness tester (target 180-240 HB) |
| Dimensional accuracy | CMM inspection (±0.05 mm tolerance) |
| Dynamic balancing | High-speed balancing machine (residual unbalance ≤10 g*cm) |
| Crack detection | 100% visual and magnetic particle inspection |
Company Details
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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