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High quality OEM 61800030040 Weichai Diesel Engine Parts Connecting Rod
| Place of Origin | Hebei, China |
| Brand Name | Original factory and auxiliary factory |
| Certification | IOS CE |
| Model Number | OEM 61800030040 |
High quality OEM 61800030040 Weichai Diesel Engine Parts Connecting Rod
Ensure maximum strength, precise balance, and long-term reliability in your Weichai-powered commercial vehicle or industrial engine with this premium OEM-spec connecting rod, engineered as a direct-fit replacement for:
- OEM Part Number: 61800030040
Manufactured to Weichai Power’s exacting standards, this high-strength forged steel connecting rod is designed for use in heavy-duty diesel engines across trucks, buses, construction equipment, generators, and marine applications. Built to withstand extreme combustion pressures and high RPM loads, this I-beam style rod delivers optimal power transfer from piston to crankshaft while maintaining dimensional stability and fatigue resistance over millions of cycles.
Ideal for engine rebuilds, piston replacements, or upgrading worn or damaged rods, this component ensures factory-level performance and safety.
Key attributes
| Item | Specifications |
|---|---|
| Product Name | Forged Steel Connecting Rod – Replacement for 61800030040 |
| OEM Part Number | 61800030040 |
| Alternative Numbers | 61800030040-R, 61800030040CR, CR61800030040 |
| Cross-references: CTR-WEICHAICR40, WCH-CR40, Rod61800030040 | |
| Rod Type | I-Beam Forged Connecting Rod (Full-Floating or Press-Fit Piston Pin Design) |
| Application | Medium/Heavy-Duty Diesel Engines – Main Rod (Standard Configuration) |
| Material | High-Strength Forged Alloy Steel (38MnVS5, 42CrMo4, or Equivalent) |
| Manufacturing Process | Hot Forging + Heat Treatment (Quench & Tempering) + Precision Machining |
| Small End Bore Diameter | 46.00 mm ± 0.02 mm (For Piston Pin / Bushing) |
| Big End Bore Diameter | 74.00 mm ± 0.02 mm (Crankshaft Journal Fit – Split Type) |
| Length (Center-to-Center) | 215.0 mm ± 0.1 mm (Exact OEM Specification) |
| Weight | Approx. 2.35 kg (Precision Balanced – Match Weights Within ±5g) |
| Big End Cap Design | Butt-Type with Two Studs/Bolts – Cap is Matched and Numbered to Rod Body |
Company Profile
Haifeng Auto Parts: Engineering Confidence into Every Drive.
For years, Haifeng Auto Parts has been the trusted name behind the high-performance components that keep vehicles running safely and smoothly. We understand that in the automotive world, quality isn't just a feature—it's the foundation of trust. That’s why we’ve built our entire operation around one promise: delivering uncompromising quality.
How We Deliver:
Precision Manufacturing: Our advanced, automated production lines craft each part with exceptional accuracy, ensuring a perfect fit and reliable performance every time.
Extreme Testing: We push our products to the limit. From intense temperature and wear tests to critical seal integrity checks, we ensure every component is ready for the toughest real-world conditions.
Proven Performance: Top auto manufacturers rely on our parts for their most critical systems—including braking, suspension, and transmission. Their trust is our testament to quality.
Contact Us for Transmission Gearbox Parts Solutions
Phone: +86 189 3190 5860
Email: huzilong9566@gmail.com
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