Product Overview:
The 3921558 Oil Cooler Core adopts 7-plate structure, originally designed for Cummins 6BT5.9/6BTA5.9 12V. Built for continuous heavy-duty operation of trucks, excavators and generators. compatible with DCEC B-series and Dodge 5.9L 12V to maintain stable oil temperature.
3921558 Oil Cooler Core Specification:
Item
Specification
Part Number
3921558
Interchange PN
3957544, 3918293, 3911940, 3903375, 3902372
Product Name
Oil Cooler Core / Stacked Plate Lube Oil Cooler
Structure Type
7-plate stacked design
Material
Stainless steel cooling plates + steel mounting base plate
Net Weight
2.6~3.0 KG (6 lbs)
Primary Fit Engine
6BT5.9 / 6BTA5.9 (12-valve Cummins B5.9L)
Compatible Engines
4BT3.9, QSB5.9, ISB5.9 (12V / VP44 24V)
Designed Operating Condition
Continuous medium & heavy-duty diesel engine service
Cooling Medium
Engine coolant (water cooling type)
Installation
Direct side mounting on engine block, integrated flange base plate
Application:
✅Highway Commercial Vehicles
Dongfeng medium trucks, Dodge heavy pickups, for frequent start-stop and long-distance continuous driving.
✅Construction Machinery
Komatsu excavators, Case equipment, loaders and motor graders.
✅Diesel Generator Sets
Stationary & mobile units running under constant loads to maintain stable lube oil temperature
Why Choose US?
✅100% Genuine Parts: Directly supplied by Cummins with official certification
✅Wholesale Discounts: Tiered pricing for bulk orders and long-term cooperation
✅Professional Support: Free technical guidance from certified engineers
✅Fast Global Delivery: 24h dispatch, worldwide shipping in 3-15days
Name: Andy
Mobile:+86 19924579082
Tel:+86 19924579082
Whatsapp:8619924579082
Email:andy@partscummins.com
Add:5F, Block 4, Next Industrial Park, 136 Zhongkang Road, Futian Dist, Shenzhen
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