High-Strength Alloy Steel Connecting Rod Bolt Torque-to-Yield (TTY) Class 12.9 for SINOTRUK and Weichai Engines
Ensure maximum clamping force, fatigue resistance, and engine safety in your SINOTRUK or Weichai-powered truck with this premium OEM-spec connecting rod bolt set. Engineered as a direct-fit replacement for multiple OEM part numbers, these critical components maintain engine integrity under extreme combustion pressures and high-RPM operation.
- VG1500030023 (SINOTRUK MC Series)
- VG1246030013 (SINOTRUK Main & Rod Bolt Variant)
- 61800030019 (Weichai WP10/12/13 Applications)
These high-tensile, torque-to-yield (TTY) connecting rod bolts are essential safety components designed to secure the connecting rod cap to the rod body. Manufactured to SINOTRUK (CNHTC) and Weichai OE standards, they are critical for engine rebuilds, piston replacements, or after any rod cap removal.
| Product Name | Connecting Rod Cap Bolt Set - Replacement for VG1500030023 / VG1246030013 / 61800030019 |
| OEM Part Numbers | VG1500030023, VG1246030013, 61800030019 |
| Alternative Numbers | VG 1500030023, 61800030019-BT, RodBolt-SINO19, CTR-SINO23, SINO-BT19 |
| Application | Connecting Rod Cap Fastener - For I-Beam or H-Beam Rods (e.g., VG1560030040, 61800030040) |
| Material | High-Strength Alloy Steel (SCM435, 42CrMo4, or Equivalent) - Quenched & Tempered |
| Grade | Class 12.9 / ISO 898-1 - Ultimate Tensile Strength ≥ 1,220 MPa |
| Coating | Black Oxide or Geomet® 321 (Zn-Ni Anti-Corrosion) - Prevents Rust & Galling |
| Thread Size | M12 x 1.75 mm (Standard for SINOTRUK & Weichai Medium/Heavy-Duty Engines) |
| Length (Overall) | 120.0 mm ± 0.5 mm (Precision-Cut Shank & Thread Engagement) |
| Design Type | Torque-to-Yield (TTY) / Stretch Bolt - Requires Angle Torquing (Torque + Degree) |
| Head Style | 12-Point Flange Head (E12) - Resists Rounding, Integrated Washer Face |
| Wrench Size | 19 mm (12-point socket) |
For years, Haifeng Auto Parts has been the trusted name behind 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.
- Precision Manufacturing: Advanced automated production lines craft each part with exceptional accuracy, ensuring perfect fit and reliable performance
- Extreme Testing: Products undergo intense temperature, wear, and seal integrity tests to ensure readiness for toughest conditions
- Proven Performance: Trusted by top auto manufacturers for critical systems including braking, suspension, and transmission
Phone: +86 189 3190 5860
Email: huzilong9566@gmail.com
Partner with Haifeng for reliable automotive transmission gearbox components.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.