Caterpillar Wiper Blade Assembly 4I-5021 is a wiper arm & blade product that supports windshield clearing and operator visibility. It is listed for Caterpillar heavy-equipment applications; use part number 4I-5021 as the primary identification reference.
- Part Number: 4I-5021
- Brand: Caterpillar
- Product Category: Wiper Arm & Blade
- Equipment Type: Excavator, Mobile Hyd Power Unit
- Compatible Models: W345C MH, 311D LRR, 312D L, 320C L, 322B L, 330 L, 345B L, 330-A L, 349D L, 325-A LN, 330D MH, 320-A L, 325-A FM L, 325B L, 329D L, 336D2 LXE, 320D LN, 320-A N, 312B, 336D, 312C, 324D, 312D, 349D2 L, 315D L, 325-A, 320D2, 336D2 L, 320C FM, 311B
- Engine Models: Confirm by equipment serial number
- Condition: New
Fitment can vary by machine configuration and serial-number range. Compare the original part number, dimensions, connectors and mounting points before purchase.





