Connecting Rod
Шатун
Biela
This OEM connecting rod (part 612640020021) is a precision-engineered power transmission component designed specifically for Shacman heavy-duty commercial truck diesel engines. The 612640020021 connecting rod transmits combustion forces from the piston to the crankshaft, converting reciprocating motion into rotational output under all operating conditions.
Manufactured from high-quality forged alloy steel with precision machining, exact dimensional tolerances, and rigorous quality control, this 612640020021 connecting rod withstands extreme combustion loads, high tensile and compressive stresses, continuous reciprocating motion, and prolonged operation during demanding heavy-duty commercial vehicle applications.
Replacing a bent, cracked, or fatigued connecting rod with this genuine 612640020021 component restores proper power transmission and prevents catastrophic engine failure. The OEM number guarantees exact dimensional specifications and factory-engineered quality for Shacman engine platforms.
| Parameter | Specification |
|---|---|
| OEM Part Number | 612640020021 |
| Product Name | Connecting Rod |
| Brand | Shacman |
| Position | Engine Piston to Crankshaft Power Transmission Link |
| Material | High-Strength Forged Alloy Steel with Precision Machining |
| Manufacturing Process | Precision Forging, CNC Machining, Boring, Honing, Shot Peening, Quality Inspection |
| Surface Protection | Shot-Peened Surface with Anti-Corrosion Preservation Coating |
| Function | Transmission of Combustion Forces from Piston to Crankshaft |
The 612640020021 connecting rod serves as the vital mechanical link engineered to transmit combustion forces from the piston to the crankshaft within Shacman heavy-duty diesel power units.
This 612640020021 connecting rod connects the piston pin at its small end to the crankshaft crankpin journal at its large end, converting the linear reciprocating motion of the piston into crankshaft rotation.
The precision-machined large end bore of the 612640020021 houses the connecting rod bearing shells, providing precise oil clearance for hydrodynamic lubrication of the crankpin journal under extreme combustion loads.
This 612640020021 component features a forged I-beam or H-beam cross-section that provides maximum strength-to-weight ratio, minimizing reciprocating mass while maintaining structural integrity under high compressive and tensile stress.
The high-strength forged alloy steel construction with shot-peened surface finish provides exceptional fatigue resistance, preventing crack initiation at stress concentration points during millions of load cycles.
The 612640020021 connecting rod is engineered to meet the specific center-to-center length, bore diameters, and material requirements of Shacman engine power transmission systems, assuring seamless compatibility.
By providing dependable power transmission, this connecting rod contributes directly to proper engine operation, smooth power delivery, and maintained vehicle performance in demanding operational environments.
The 612640020021 connecting rod is manufactured from premium high-strength forged alloy steel with precision CNC machining, delivering exceptional dimensional accuracy and consistent bore geometry for reliable bearing operation.
The precisely controlled big end bore roundness and surface finish of the 612640020021 ensure proper bearing crush and oil clearance, providing optimal conditions for hydrodynamic lubrication film development at the crankpin interface.
The carefully designed weight-matched specifications of the 612640020021 ensure balanced reciprocating forces across all cylinders, minimizing engine vibration and ensuring smooth power delivery throughout the complete engine operating speed range.
Each connecting rod undergoes rigorous quality verification, including dimensional inspection, bore geometry measurement, and crack detection testing to guarantee its performance in demanding power transmission applications.
The material selection for the 612640020021 prioritizes both tensile strength for combustion load transmission and fatigue resistance for long-term durability under cyclic compression and tension stress conditions.
The 612640020021 connecting rod’s design has been validated through extensive engine dynamometer and endurance testing to ensure reliable power transmission throughout the complete engine service interval.
Replacement of the 612640020021 connecting rod requires removing the cylinder head and oil pan, disconnecting the connecting rod cap, extracting the old assembly, and installing the new unit with proper bearing clearances.
After installation of the 612640020021 connecting rod, verify proper big end bearing oil clearance using plastigage, ensure the cap is oriented correctly, and torque the connecting rod bolts to manufacturer specification.
Periodic inspection of the 612640020021 connecting rod through oil analysis for bearing wear metals and visual inspection during major engine overhauls is recommended within maintenance schedules.
When installing the 612640020021 connecting rod, ensure that the piston orientation is correct relative to the connecting rod, and that the bearing shells are properly seated with the locating tangs engaged in their respective notches.
It is critical to use new connecting rod bolts and follow the proper torque and angle tightening procedure for the 612640020021, as reused bolts may have exceeded their yield point and could fail during engine operation.
During engine overhaul, pay close attention to the connecting rod of the 612640020021 for signs of bending, bore distortion, or fatigue cracking indicating the need for connecting rod replacement and crankshaft journal inspection.
Each 612640020021 connecting rod undergoes thorough dimensional inspection, bore geometry verification, and crack detection testing to guarantee strict compliance with OEM engineering specifications.
We provide complete quality documentation for every 612640020021 connecting rod, including material certifications and inspection reports for engine service records and workshop quality assurance compliance.
The connecting rod is tested for dimensional accuracy and structural integrity to ensure proper fitment and reliable power transmission in the most demanding engine operating environments.
Our quality management system includes fatigue strength testing and crack propagation resistance verification on the 612640020021 to guarantee consistent manufacturing quality and extended service durability.
We maintain complete traceability of all materials used in the 612640020021 connecting rod, from raw material certification to finished component inspection, ensuring total accountability throughout the production process.
Visible bending, twisting, or deformation of the 612640020021 connecting rod indicates severe overloading or hydraulic lock damage, requiring immediate replacement to prevent catastrophic engine failure and cylinder block damage.
Unusual knocking sounds from the engine, particularly under load, may indicate the 612640020021 connecting rod bearing has excessive clearance or the rod has developed fatigue cracking requiring prompt inspection and replacement.
If the connecting rod exhibits big end bore distortion, cap fretting marks, or bolt hole elongation, the 612640020021 component should be replaced immediately to restore proper bearing operation and prevent sudden rod failure.
Following any piston seizure, bearing failure, or engine overspeed event, the 612640020021 connecting rod must be thoroughly inspected for bending, bore damage, or fatigue cracking requiring replacement.
If the connecting rod shows signs of overheating discoloration or blue tempering near the big end, the 612640020021 requires replacement along with investigation and correction of the root cause lubrication or cooling system issue.
Standard engine overhaul inspections should include a comprehensive evaluation of the 612640020021 connecting rod for early indicators of bore wear, bolt torque loss, or fatigue marks requiring corrective action.
Inferior aftermarket connecting rods with incorrect specifications or substandard materials can lead to catastrophic engine failure. We exclusively supply authentic components like the 612640020021 manufactured to precise OEM engineering standards.
The part number 612640020021 is clearly identified on the packaging for unambiguous verification. Our extensive international logistics infrastructure ensures secure protective packaging and rapid dispatch to any worldwide destination with complete export documentation.
All procurements of 612640020021 include comprehensive quality certification, ensuring conformity with local import regulations and engine assembly service documentation requirements in your jurisdiction.
We provide highly competitive pricing structures and dependable shipping alternatives for the 612640020021 connecting rod, facilitating convenient access for our international clientele to maintain their Shacman engines with authentic OEM power transmission components.
Our dedicated client support team stands prepared to address any technical inquiries or logistical concerns regarding the 612640020021 connecting rod, encompassing engine overhaul consultations to comprehensive bulk fleet procurement processing.
Complete 612640020021 connecting rod. Ready for professional installation featuring precision-machined bores, shot-peened surface finish, and weight-matched design for dependable engine power transmission performance.
Expert technical guidance on engine power transmission components and proper installation procedures for the 612640020021 connecting rod is readily available. We assist in ensuring reliable power delivery for your Shacman engine application.
Complete quality documentation for 612640020021 is available upon request, encompassing material certifications and dimensional inspection reports for your permanent maintenance and service records.
For current stock availability of the genuine 612640020021 connecting rod, please use the contact buttons above.
