
Product Introduction
The Co Rod 618 connecting rod assembly is a heavy-duty engine component designed for SINOTRUK HOWO WD618 series diesel engines. The connecting rod plays a critical role in the engine crankshaft system by transferring combustion force from the piston to the crankshaft, converting reciprocating piston movement into rotational engine power.
Manufactured from high-strength forged steel with precision machining and heat treatment technology, this connecting rod provides excellent tensile strength, fatigue resistance, and durability under high-load diesel engine operating conditions. Similar WD618 connecting rod assemblies such as part number 61800030041 are widely used in HOWO heavy truck engine systems.
The connecting rod works together with pistons, crankshafts, cylinder liners, and bearings to maintain stable engine operation, combustion efficiency, and power transmission during long-distance transportation and heavy-duty applications. WD618 engine assembly manuals specify strict matching and balancing requirements for piston-connecting rod assemblies to ensure stable engine performance and reduced vibration.
Its reinforced forged structure helps reduce deformation and wear under continuous high-temperature and high-pressure engine operation. OEM-standard production ensures accurate dimensional tolerance, stable bearing fitment, and reliable compatibility with original WD618 diesel engine systems. Industry references for HOWO WD618 engine parts describe connecting rods as forged steel components designed to withstand heavy compressive and tensile stresses in commercial diesel engines.
The Co Rod 618 assembly is commonly used in HOWO dump trucks, tractor trucks, mining vehicles, and construction transport applications equipped with WD618 series engines.
Each unit undergoes hardness testing, dimensional inspection, balance verification, and fatigue durability testing before shipment to ensure dependable engine performance and long service life.

Technical Specifications
| Item | Specification |
| Product Name | Connecting Rod Assembly |
| Application | Engine Crankshaft System |
| Engine Model | WD618 Diesel Engine |
| Vehicle Models | HOWO Heavy Duty Trucks |
| Material | Forged Steel |
| Function | Power Transmission Between Piston & Crankshaft |
| Heat Treatment | Yes |
| Condition | New |
| OEM Standard | Yes |
| Quality Test | Hardness & Fatigue Tested |
| Origin | China |
| Packaging | Export Standard Carton |
Vehicle Fitment
| Vehicle Brand | Compatible Models |
| SINOTRUK | HOWO 371 Dump Truck |
| SINOTRUK | HOWO 375 Tractor Truck |
| SINOTRUK | HOWO A7 Heavy Truck |
| SHACMAN | F3000 / X3000 |
| FAW | Heavy Duty Diesel Truck |
| Engine Models | WD618 / WD615 / WP10 compatible versions |
Payment & Shipping
| Category | Options |
| Payment Methods | T/T, PayPal, Western Union, MoneyGram, Visa, MasterCard, 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, CFR, CIF, DDP |
| Shipping Scope | Worldwide Shipping Available |
Related Products Categories
Engine Parts System
| 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, Main Bearing, Connecting Rod Bearing, Thrust Washer |
| Valve Train | Intake Valve, Exhaust Valve, Camshaft, Rocker Arm, Valve Spring |
| Turbocharger System | Turbocharger, Turbo Repair Kit, Intercooler, Intake Pipe |
| Fuel System | Fuel Injector, Injector Nozzle, Fuel Pump, Fuel Filter |
| Cooling System | Water Pump, Thermostat, Radiator, Expansion Tank |
| Lubrication System | Oil Pump, Oil Filter, Oil Cooler, Oil Pan |
| Intake & Exhaust System | Air Filter, Air Cleaner Assembly, Exhaust Pipe, Muffler, DPF, SCR |
| Engine Electrical Parts | Starter Motor, Alternator, Sensors, Wiring Harness |
Transmission & Drivetrain Parts
| Section/System | Common Spare Parts |
| Clutch System | Clutch Disc, Pressure Plate, Release Bearing, Clutch Booster |
| Gearbox System | Gearbox Assembly, Synchronizer, Gear Set, Bearing, Oil Seal, Shift Fork |
| Differential System | Differential Assembly, Crown Wheel & Pinion, Differential Bearing, Repair Kit |
| Driveshaft System | Driveshaft Assembly, Universal Joint, Center Bearing, Slip Yoke |
| Section/System | Common Spare Parts |
| Front Axle | Kingpin Kit, Steering Knuckle, Tie Rod, Wheel Bearing |
| Rear Axle | Axle Housing, Half Shaft, Differential Housing, Hub Bearing |
| Suspension System | Leaf Spring, Shock Absorber, Air Spring, U-Bolt, Equalizer Beam |
| Steering System | Steering Gearbox, Drag Link, Power Steering Pump, Steering Shaft |
| Brake System | Brake Chamber, Brake Servo, Brake Valve, Slack Adjuster, Brake Caliper |
Cabin & Body Parts
| Section/System | Common Spare Parts |
| Cabin Assembly | Cabin Shell, Cabin Suspension, Cabin Lock, Cabin Mount |
| Dashboard System | Instrument Cluster, Dashboard Panel, Switch Assembly |
| Door System | Door Assembly, Door Lock, Door Handle, Window Regulator |
| Seat System | Driver Seat, Passenger Seat, Seat Shock Absorber |
| Air Conditioning System | AC Compressor, Condenser, Evaporator, Blower Motor |
| Electrical System | Headlamp, Tail Lamp, Fog Lamp, Wiring Harness, Relay |
| Mirror System | Rear View Mirror, Mirror Arm, Mirror Cover |
| Body Exterior Parts | Bumper, Grille, Fender, Mudguard, Step Panel |
