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Specifications

The Costex 1S9544 Seal O‑Ring delivers reliable sealing for hydraulic and engine applications in agricultural and heavy-duty truck equipment. Manufactured by Costex Tractor Parts, the PTFE-coated seal offers enhanced resistance to twisting, tearing, and extreme temperatures, matching OEM Caterpillar tolerances. Ideal for maintaining system integrity under pressure, this durable O‑Ring simplifies installation and ensures a long-lasting, leak‑free operation. Compatible with a range of Caterpillar engines and genset models.
Weight
0.05

Compatibility

3406B generator sets (e.g., 1990, 1995, 2000)

3406C generator sets (e.g., 2001, 2005, 2010)

D9R track-type tractors (e.g., 1997, 2002, 2008)

621 wheel tractors (e.g., 1998, 2003, 2009)

785D off-highway trucks (e.g., 1999, 2004, 2011)

Alternative Part Numbers

  • Caterpillar 1S9544

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