Product Details
Blogs List
How to Find the Best Allison Transmission ...
2025-11-05 Comments Off on How to Find the Best Allison Transmission Spare Parts Supplier in China?Need More Information?
We’re happy to help you find the best option for your application.
C3975818 XCMG GR2605 motor grader oil cooler core
- Part Number: C3975818 (3975818)
- Alternate Name: Oil Radiator Core, Oil Cooler Element
- Material: Copper fins + Stainless steel end caps (vacuum brazed)
- Structure: 8-layer plate-fin, alternating oil/water passages
- Heat Dissipation Area: ~0.32㎡
Share:
Product Details:
C3975818 XCMG GR2605 motor grader oil cooler core
C3975818 (3975818) is a genuine Cummins plate-fin oil cooler core, a critical heat exchanger for ISB/ISDE/QSB 5.9L/6.7L engine lubrication systems. Constructed from high-density copper/stainless steel composite plates via vacuum brazing, it efficiently dissipates oil heat through coolant circulation, maintaining optimal oil temperature (90~110°C) to prevent oil oxidation and protect bearings, turbochargers, and precision components.
Technical Parameters
- Part Number: C3975818 (3975818)
- Alternate Name: Oil Radiator Core, Oil Cooler Element
- Material: Copper fins + Stainless steel end caps (vacuum brazed)
- Structure: 8-layer plate-fin, alternating oil/water passages
- Heat Dissipation Area: ~0.32㎡
- Working Pressure: Oil side ≤8bar, Coolant side ≤3bar
- Temperature Range: -40°C~180°C
- Housing: Integrates with oil filter head housing
- Seals: O-rings/gaskets (sold separately)
- Cross Reference: M-3975818 (Interstate-McBee)
- Standard: Cummins OEM, ISO 9001, TS16949
Application
Applicable Engines:
- Cummins ISB5.9L (2003~2007), ISB6.7L (2007.5~present)
- Dongfeng Cummins ISDE6.7L, QSB5.9/6.7L Common Rail Series
Equipment:
- Commercial Vehicles: Dongfeng Tianlong, Tianjin, Foton Auman, Dodge Ram 2500/3500
- Construction Machinery: Komatsu PC220-8, Hitachi ZX240, LiuGong CLG926, XCMG XE265
- Generator Sets: 100~180kW Cummins Electronic Diesel Gensets
- Industrial Equipment: Forklifts, Air Compressors, Marine Main Engines, Oilfield Machinery
Installation Location:
- Side of cylinder block, inside oil filter head, cross-cooled by oil and coolant.
Common Faults & Troubleshooting
1. High Oil Temperature (Most Common)
- Causes: Core clogging, scale buildup, fin corrosion, brazing leaks
- Symptoms: Oil temp >120°C, warning light, power loss, high fuel consumption, turbo noise
- Solution: Replace C3975818 core; flush cooling system, replace coolant; inspect thermostat & water pump.
2. Oil-Coolant Mixing (Severe Failure)
- Causes: Internal cracks, brazing seam failure, corrosion perforation
- Symptoms: Milky emulsified oil, oil in coolant, rising oil level, bubbling radiator
- Solution: Replace C3975818 core immediately; flush oil/water galleries, change oil/filter & coolant.
3. External Leakage
- Causes: Seal aging, improper installation, housing distortion, core end damage
- Symptoms: Leaks at filter head, mixed oil/water stains, low pressure
- Solution: Replace C3975818 core + full seal kit; check housing flatness, repair/replace distorted housing.
4. Reduced Cooling Efficiency
- Causes: External carbon buildup, internal scale/oil sludge clogging, restricted passages
- Symptoms: Elevated oil temp, uneven cooling, reduced hot-engine power
- Solution: Replace C3975818 core; service cooling system regularly, use premium fluids.
Get a personalized quote now
1 3955034 Oil Filter Seat
2 3974127 Filter Seat Gasket
3 C3901445 hexagonal flange bolt
4 C3906619 plug
5 C3925009 compression spring
6 C3929457 O-ring seal
7 C3936365 pressure reducing valve
8 C3946947 plug
9 C3947287 oil pressure regulating valve plunger
10 C3975818 oil cooler core
11 D2830559 oil cooler core sealing gasket
*For other spare parts procurement needs, please contact us!
