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Specifications

The IPD 3178766 Standard Main Bearing delivers OEM-level performance and durability for Caterpillar 3406, 3406C/E, 3408, C15, C16, and C18 engines. Its tri-metal design offers excellent conformability and embedability, supporting precise crankshaft alignment and reducing wear under high-load and high-heat conditions. Replacement for OEM part numbers such as 4W5492, 2110592, 1W6589, 1N3542, and others, this bearing meets strict ISO manufacturing standards. Sold as individual pairs (seven total per engine), it covers a broad range of heavy-duty applications—from on-highway trucks to industrial and generator engines. IPD backs it with a 24‑month on-highway warranty and 12‑month off-highway coverage, and Wofford Truck Parts offers fast shipping and fitment support.
Weight
1.5

Compatibility

1977–Present • Caterpillar 3406 / 3406B / 3406C / 3406E

2001–Present • Caterpillar C15

2001–Present • Caterpillar C16

2003–Present • Caterpillar C18

2000–Present • Caterpillar 3408


Alternative Part Numbers

  • 1N3542
  • 1W6589
  • 2110592
  • 2170390
  • 317‑8766
  • 3178766
  • 4W5492
  • DS‑1W‑6589
  • DS‑211‑0592
  • DS‑217‑0390
  • DS‑4W‑5492
  • DS‑8N‑5421

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