T: +8615609213525
E: 15829336298@139.com
E: 15829336298@139.com
Room 1212-G107, Unit 2, Building 1, Block A, Shenglong Plaza, No. 80 Weiyang Road, Weiyang District, Xi'an City, Shaanxi Province
| Quantity: | |
|---|---|
4974334
Dongfeng
| Attribute | Specification |
|---|---|
| Product Name | Engine Flywheel Assembly |
| Manufacturer | Cummins Inc. (OEM) |
| Primary Part Number | 4974334 |
| Alternative Designations | Crankshaft Flywheel, Clutch Flywheel, Ring Gear Flywheel |
| Material | High-quality alloy cast iron with enhanced strength and heat dissipation |
| Construction Type | One-piece forged/machined body with press-fit hardened ring gear |
| Application Position | Mounted directly to the rear of the crankshaft flange |
| Function | Energy storage, torsional vibration damping, clutch mounting base, starter engagement |
| Quality Standard | Meets or exceeds Cummins OE design, material, and balancing specifications |
| Parameter | Value / Detail |
|---|---|
| Engine Platform Compatibility | Cummins ISM11, QSM11, M11 Series (10.8L–11L displacement) |
| Typical Weight | 22–26 kg (48.5–57.3 lbs), depending on configuration |
| Ring Gear Teeth Count | Typically 150–160 teeth (exact count varies by model; hardened via induction) |
| Heat Treatment | Surface-hardened friction face; ring gear induction-quenched for wear resistance |
| Dynamic Balance Grade | G2.5 per ISO 1940 standard — ensures minimal vibration at high RPM |
| Friction Surface Finish | Precision-ground flatness (< 0.05 mm runout tolerance) |
| Mounting Bolt Pattern | Matches Cummins ISM/QSM crankshaft flange (SAE #3/4 bellhousing pattern) |
| Torque Capacity | Supports up to 1,850 Nm (1,365 lb-ft) peak engine torque |
| Thermal Stability | Resists warping and cracking under repeated high-load clutch cycling |
| Attribute | Specification |
|---|---|
| Product Name | Engine Flywheel Assembly |
| Manufacturer | Cummins Inc. (OEM) |
| Primary Part Number | 4974334 |
| Alternative Designations | Crankshaft Flywheel, Clutch Flywheel, Ring Gear Flywheel |
| Material | High-quality alloy cast iron with enhanced strength and heat dissipation |
| Construction Type | One-piece forged/machined body with press-fit hardened ring gear |
| Application Position | Mounted directly to the rear of the crankshaft flange |
| Function | Energy storage, torsional vibration damping, clutch mounting base, starter engagement |
| Quality Standard | Meets or exceeds Cummins OE design, material, and balancing specifications |
| Parameter | Value / Detail |
|---|---|
| Engine Platform Compatibility | Cummins ISM11, QSM11, M11 Series (10.8L–11L displacement) |
| Typical Weight | 22–26 kg (48.5–57.3 lbs), depending on configuration |
| Ring Gear Teeth Count | Typically 150–160 teeth (exact count varies by model; hardened via induction) |
| Heat Treatment | Surface-hardened friction face; ring gear induction-quenched for wear resistance |
| Dynamic Balance Grade | G2.5 per ISO 1940 standard — ensures minimal vibration at high RPM |
| Friction Surface Finish | Precision-ground flatness (< 0.05 mm runout tolerance) |
| Mounting Bolt Pattern | Matches Cummins ISM/QSM crankshaft flange (SAE #3/4 bellhousing pattern) |
| Torque Capacity | Supports up to 1,850 Nm (1,365 lb-ft) peak engine torque |
| Thermal Stability | Resists warping and cracking under repeated high-load clutch cycling |
