22B-03-41411 Engine Radiator for Komatsu PC138US-11, PC138USLC-11 Excavators

The SPARKLING MACHINERY NEW 22B-03-41411 Radiator Photo:

• • • • • • • • • Compatible Komatsu Machine Models

                  This radiator is the primary fitment for Komatsu's Dash-11 series tight-tail excavators:

                  Machine Category	Specific Models
                  Crawler Excavators (US Series)	PC138US-11, PC138USLC-11
                  Engine Compatibility	Komatsu SAA4D95LE-7 Diesel Engines

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Q&A

• • • • • • Q1: What are the main signs that my PC138US-11 radiator needs to be replaced?

          • A: Key indicators include persistent engine temperature alerts on the dashboard monitor during standard digging cycles, visible coolant leaks along the side weld seams, or a core that has suffered extensive fin erosion due to dust and high-pressure debris cleanings.

            Q2: Does the restricted engine bay space of the PC138US-11 affect radiator lifespan?

          • A: Yes. Because short-tail swing machines pack components closely together, a buildup of airborne dust, leaves, or construction debris can choke airflow much faster than in conventional excavators. If the core is not regularly blown out, the trapped debris creates hot spots that can cause thermal stress cracks over time.

            Q3: Is it necessary to replace the mounting hardware when installing the 22B-03-41411?

          • A: While the structural brackets are usually transferred from the old radiator, it is highly recommended to inspect and replace the rubber vibration isolation cushions. Hardened or dry-rotted isolation mounts will fail to absorb chassis vibration, leading to premature stress cracking on the new aluminum core.