Isuzu 6HK1 engine connecting rod set 898018-4252, Sany material code: 60311974

Isuzu 6HK1 Engine Connecting Rod Set 898018-4252, Sany Material Code: 60311974
Core Information
- OEM Number: 8-98018425-2 (898018-4252)
- Sany Material Number: 60311974
- Compatible Engines: Isuzu 6HK1 (Electronic Fuel Injection / Direct Injection)
- Compatible Models: Sany SY305/SY335/SY365/SY375; Hitachi ZX300/330/360, Sumitomo SH350, etc.
- Material: Forged from high-strength alloy steel, fully heat-treated for high fatigue strength
- Installation Quantity: 6 per engine (inline 6-cylinder, 1 per cylinder)
Key Features
- Structure: Box-section design with high rigidity and bending resistance, suitable for heavy-duty and high-load conditions
- Manufacturing Process: Precision machining of big-end bore for配套 connecting rod bearings; press-fitting of small-end bushings with aligned lubrication holes
- Interchangeability: Not interchangeable with 4HK1; distinguishes between straight-mouth and offset-mouth types; offset-mouth is commonly used for 6HK1
Purchase and Installation Notes
- Verify Codes: Confirm 898018-4252 + 60311974 to avoid confusion with 4HK1
- Replacement Recommendation: It is recommended to replace all 6 as a set during major overhauls or when abnormal noises, cylinder scoring, or bending occur, to ensure consistent dynamic balance
- Installation Focus:
1. Tighten connecting rod bolts in 2–3 stages to the specified torque (final torque approximately 80–90 N·m); never tighten all at once
2. Clean oil passages before installation and check connecting rod bearing clearance (standard: 0.03–0.05 mm)
3. Ensure connecting rod orientation matches cylinder numbering with consistent forward markings
- Fault Diagnosis: Engine knocking, vibration, reduced power, or high fuel consumption are often caused by bent connecting rods, worn copper bushings, or loose bolts