Isuzu 6HK1 engine idle gear 898041-5650 Z=34, Sany material code: 60311962

Isuzu 6HK1 Engine Idler Gear 898041-5650 Z=34, Sany Material Code: 60311962
Core Information
- OEM Number: 8-98041565-0 (898041-5650)
- Sany Material Number: 60311962
- Compatible Engines: Isuzu 6HK1 (Electronically Injected / Direct Injected), 4HK1
- Number of Teeth: 34 teeth (Z=34), Oil Pump Drive Idler
- Function: Timing System → Intermediate Drive for Oil Pump, Drives Oil Pump Operation to Ensure Engine Lubrication Pressure
- Compatible Models: Sany SY305/SY335/SY365; Hitachi ZX300/330/360; Sumitomo SH350, etc. (Universal for 6HK1/4HK1 models)
- Material: Forged High-Strength Alloy Steel, Tooth Surface Hardened by High-Frequency Quenching (HRC58-62), Wear-Resistant, Impact-Resistant, and Less Prone to Tooth Breakage
Key Features
- Structure: Single-stage 34-tooth, Directly Meshes with Oil Pump Gear, Precise Transmission Ratio
- Position: Lower Part of Timing Gear Chamber, Dedicated Oil Pump Idler
- Precision: Dynamically Balanced, No Vibration and Low Noise During High-Speed Operation
- Interchangeability: Not interchangeable with 61-tooth (60311961) or 70-60-30 triple (60311960) idlers; Specifically for 34-tooth Oil Pump Drive
Purchase and Installation Notes
- Code Verification: Confirm 898041-5650 + 60311962 + Z=34; Distinguish Timing Idler from Oil Pump Idler
- Replacement Timing: Check and Replace Simultaneously During Engine Overhaul, Low Oil Pressure, Lubrication Alarm, or Timing Noise
- Installation Focus:
1. Align Gear Timing Markings to Avoid Misalignment Causing Abnormal Oil Pump Speed
2. Idler Shaft Bushing Clearance Standard: 0.03–0.06mm; Replace Bushing if Out of Tolerance
3. Bolt Torque: 45–55N·m, Tighten in Stages Evenly to Prevent Loosening
- Fault Correlation: Insufficient Oil Pressure, Idle Oil Light Illumination, Engine Noise – Prioritize Inspection for Wear or Tooth Breakage of This 34-Tooth Idler