
Product Introduction
The 612630020051 Flywheel is a key power transmission component used on Weichai heavy-duty diesel engines. Installed on the rear of the crankshaft, it stores rotational energy to maintain stable engine operation while providing the clutch mounting surface for efficient power transfer from the engine to the transmission.
Manufactured according to OEM specifications, this flywheel features precision-balanced construction, high-strength forged steel, and induction-hardened ring gear teeth for reliable starter engagement and long-term durability. It is widely used for engine rebuilding, clutch replacement, and commercial truck maintenance.

Technical Specifications
| Item | Specification |
| Product Name | Engine Flywheel |
| OEM Part Number | 612630020051 |
| Engine Brand | Weichai |
| Compatible Engines | Weichai Heavy-Duty Diesel Engines |
| Vehicle Brands | Shacman / SINOTRUK / Foton / FAW / Beiben / SANY / Tongli / SDLG |
| Compatible Models | Shacman F3000, X3000, X6000; HOWO; Steyr; SITRAK; HOHAN; Auman ETX/GTL; FAW JH6; Beiben NG80 |
| System | Engine & Clutch System |
| Component Type | Flywheel Assembly |
| Position | Rear End of Crankshaft |
| Material | High-Strength Forged Alloy Steel |
| Manufacturing Process | Forging + CNC Machining + Dynamic Balancing |
| Function | Stores Rotational Energy & Supports Clutch Assembly |
| Surface Treatment | Anti-Rust Coating |
| Condition | Brand New |
| OEM Standard | Yes |
| Quality Test | Dynamic Balance / Hardness / Runout / Fitment Tested |
| Installation | OEM Direct Replacement |
| Packaging | Export Standard Packaging |
| Origin | China |
Vehicle Fitment
| Vehicle Brand | Compatible Models |
| Shacman | Delong F3000, X3000, X6000 |
| SINOTRUK | HOWO, Steyr, SITRAK, HOHAN |
| Foton | Auman ETX, Auman GTL |
| FAW | JH6 |
| Beiben | NG80 |
| SANY | Heavy Duty Trucks |
| Tongli | Mining Trucks |
| SDLG | Heavy Duty Trucks |
Payment & Shipping
| Category | Options |
| Payment Methods | T/T, PayPal, Western Union, MoneyGram, L/C, Alibaba Trade Assurance |
| Shipping Methods | DHL, FedEx, UPS, TNT |
| Delivery Time | 3–7 Days (Express), 20–45 Days (Sea Freight) |
| Trade Terms | EXW, FOB, CIF, CFR, DDP |
| Shipping Scope | Worldwide Shipping |
Related Products Categories
| Section/System | Common Spare Parts |
| Cylinder Block & Cylinder Head | Cylinder Block, Cylinder Head, Cylinder Liner, Piston, Piston Ring, Cylinder Head Gasket |
| Crankshaft System | Crankshaft, Connecting Rod, Bearing, Thrust Washer |
| Valve Train | Intake Valve, Exhaust Valve, Camshaft, Rocker Arm, Valve Spring |
| Fuel System | Injector, Fuel Pump, Fuel Filter |
| Cooling System | Water Pump, Thermostat, Radiator |
| Lubrication System | Oil Pump, Oil Cooler |
Transmission & Drivetrain Parts
| Section/System | Common Spare Parts |
| Clutch System | Clutch Disc, Pressure Plate, Release Bearing |
| Gearbox System | Gearbox Assembly, Gear Set, Bearing, Seal |
| Differential System | Differential Assembly, Crown Wheel & Pinion, Differential Bearing |
| Driveshaft System | Propeller Shaft, Universal Joint, Drive Shaft Center Bearing, Flange Fork, Slip Yoke, Center Support |
| Axle System | Axle Shaft, Wheel Hub, Planetary Gear, Side Gear |
| Section/System | Common Spare Parts |
| Front Axle | Steering Knuckle, Kingpin Kit, Tie Rod, Wheel Hub |
| Rear Axle | Axle Housing, Hub, Differential Housing |
| Suspension System | Leaf Spring, Leaf Spring Bracket, Leaf Spring Seat, Torque Rod, Balance Shaft, Spring Shackle, Suspension Saddle, Console Bracket, Shock Absorber, U-bolt |
| Steering System | Steering Gearbox, Drag Link, Steering Pump |
| Brake System | Brake Drum, Brake Shoe, Brake Chamber, Brake Valve, Brake Caliper, Slack Adjuster |
Cabin & Body Parts
| Section/System | Common Spare Parts |
| Cabin Assembly | Cabin Body, Mounting, Lock System |
| Electrical System | Headlamp, Tail Lamp, Wiring Harness |
| Interior | Dashboard, Switch Panel, Instrument Cluster |
| Exterior | Bumper, Grille, Fender, Step |
