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The 421-4021 is engineered for CAT large equipment applications requiring continuous cooling capacity. With an optimized aluminum core and reinforced construction, it delivers consistent thermal control in high-load and long-hour operations.
Features
High Thermal Efficiency – Dense fin structure maximizes air-to-liquid heat transfer.
Corrosion-Resistant Alloy – Long-lasting protection against oxidation.
Reliable Operation – Performance validated under real machine conditions.
Aluminum Radiator List-
| CAT | 245-9207, 245-9208, 245-9209, 326-3898, 245-9359, 353-5544, 265-3570, 475-6622, 298-1226, 230-2966, 281-3514, 359-9393, 245-9334, 210-8030, 395-3755 |
| Komatsu | 56E-07-21133, 561-03-81280, 561-03-81632, 561-03-81652, 561-03-81642, 21N-03-37412, 21N-03-41110, 21N-03-43510, 21T-03-31160, 21T-03-31711 |
| Liebherr | 10000392, 5617986, 5617987, 11823532, 11821219, 11821218, 5611936, 5611937, 10333648, 10333649, |
| Hitachi | 1386-621-100, 1381-639-801, 1381-639-8020, 1381-639-8030, 4682425, 4682426, 4444691, 4658096, 4427925, 4729782, 4421620, 335611, 4439687, YA00008446 |
How We Produce
We combine design simulation, high-quality raw material inspection, and vacuum brazing to achieve uniform bonding and leak-proof assembly. CNC machining guarantees accurate fit, while final inspection covers pressure resistance, vibration tolerance, and packaging integrity.
Pictures of Sinrui's production workshop
Radiator product packaging and delivery
