High-Performance Forged Steel Connecting Rod for FAW TRUCK (XICHAI 6DM2)
O 1004020A81DG connecting rod is a heavy-duty forged steel engine component built for FAW XICHAI CA6DM2 diesel engines. Designed for FAW J6, J6P, and JH6 trucks, it provides superior fatigue resistance and exact OEM fitment (interchangeable with 1004020-81D).
✨Key Technical Specifications
- Product Name: Engine Connecting Rod Assembly
- OEM Part Number: 1004020A81DG
- Interchange / Cross-Reference Part Number: 1004020-81D
- Material: Premium High-Tensile Forged Steel
- Compatibilidade com motores: FAW XICHAI CA6DM2 / 6DM Series Diesel Engines
- Vehicle Compatibility: FAW TRUCK J6, J6P, JH6 Heavy-Duty Series
- Manufacturing Standard: Direct OEM Replacement Standard
| N.º de série | Número de peça | Nome da peça | Quantidade |
| 1 | 1004019-81D | Snap ring, piston pin | 12 |
| 2 | 1004018-81D | Piston Pin | 6 |
| 3 | 1004012-81D | Top compression ring | 6 |
| 4 | 1004013-81D | Second compression ring | 6 |
| 5 | 1004030-81D | I type steel oil ring assembly | 6 |
| 6 | 1004011-81D 1004011A81D | Piston (fully interchangeable) | 6 |
| 7 | 1004020-81D | Connecting rod assembly | 6 |
| 8 | 1004026-81D | Connecting rod upper bearing | 6 |
| 9 | 1004028-81D | Connecting rod lower bearing | 6 |
📑Official XICHAI CA6DM2 Connecting Rod Bolt Tightening Specifications
To ensure structural integrity and prevent engine failure, always follow the official factory torque-and-angle procedure during assembly:
- Bolt Specification & Preparation
- Bolt Size: M16 high-strength yield-point bolts.
- Lubrication: Apply a light layer of clean engine oil to both the threads and the bolt flange seating surface before installation.
- Torque-Angle Tightening Sequence (Must Tighten Diagonally & Alternately)
- Step 1 (Pre-Torque): Tighten diagonally to 35 N·m.
- Step 2 (Final Rotation): Rotate bolts an additional 180° (±5°).
- Critical Assembly & Maintenance Guidelines
- Torque-Angle Method Required: Never rely on torque values alone. Skipping the 180° angle rotation will lead to improper clamping force and severe engine damage.
- Mark Rotation Lines: Draw an alignment mark on the bolt head and rod cap after Step 1 to accurately verify the 180° rotation in Step 2.
- Bolt Reuse Limits: These are yield-point stretch bolts. They can be reused a maximum of 3 times. Replace immediately if reused more than 3 times or if total bolt length exceeds factory limits.
- Alignment Orientation: Ensure the raised mark on the connecting rod body and the arrow on the piston top both point toward the front of the engine (fan side).
💬Frequently Asked Questions
Q: What is the exact bolt tightening torque for XICHAI CA6DM2 connecting rods?
A: The tightening specification for XICHAI CA6DM2 M16 connecting rod bolts is 35 N·m pre-torque + 180° angle rotation, applied diagonally in steps with clean oil lubrication.
Q: Is part number 1004020A81DG interchangeable with 1004020-81D?
A: Yes, part numbers 1004020A81DG e 1004020-81D are direct OEM interchangeable cross-references for FAW XICHAI 6DM series engines.
Q: Which truck models use the 1004020A81DG connecting rod?
A: This forged steel connecting rod is designed for heavy-duty FAW TRUCK models powered by XICHAI CA6DM2 engines, including the FAW J6, J6P, and JH6 series.
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