C4891385 XCMG GR2605 motor grader seal washer

Technical Parameters

• Part No.：C4891385 (4891385)
• Brand：Cummins (DCEC) Genuine
• Type：Composite flat seal washer
• Material：Steel core + NBR/FKM coating
• Size：M14 (ID 14mm, OD 22mm, Thickness 1.5mm)
• Pressure Rating：0–25 MPa
• Temp Range：-40℃ to +150℃
• Surface：Zinc-plated + double-sided rubber
• Function：Sealing, anti-loosening, vibration damping
• Cross Reference：C3964339, C4934235, C3918174

Application

Fit Engines

• Cummins ISDe 4.5L/6.7L (Euro IV/V/VI)
• Cummins ISBe 5.9L, QSB5.9, QSB6.7
• Cummins 6BT5.9, 6CT8.3, 4B3.9
• Cummins ISL8.9, QSL9, ISC8.3

Fit Equipment

• Construction：XCMG LW500 loader, XE215 excavator, SANY/LiuGong machinery
• Trucks：Dongfeng Tianlong/KR, Foton Auman/Aumark, JAC Gallop

Mounting Locations

• Fuel：High-pressure pump, fuel filter, common rail, injector return
• Oil：Oil filter, oil cooler, pressure/temp sensor
• Water：Water pump, thermostat, hose connector
• Air：Air compressor, turbo drain, crankcase breather

Common Faults & Troubleshooting

1. Fluid Leakage

• Cause：Aged gasket, damaged coating, insufficient torque
• Fix：Replace C4891385; clean surfaces; torque 25–30N·m
• Action：Use genuine gasket for reliable sealing

2. Loose Connection

• Cause：Weak gasket, excessive vibration, poor anti-loosening
• Fix：Install C4891385; apply thread locker; torque correctly
• Action：Ensure proper fit and torque

3. Broken Gasket

• Cause：Over-torque, repeated removal, high temperature
• Fix：Replace with C4891385 genuine; avoid over-tightening
• Action：Minimize disassembly; use OEM parts

4. Severe Corrosion

• Cause：Poor plating, harsh environment
• Fix：Use C4891385 OEM composite gasket
• Action：Regular inspection; replace at service intervals