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Specifications

LOCTITE® SI 587 Gasketing Sealant 491983 from LOCTITE HENKEL CORPORATION is a high-performance, silicone-based sealant that forms strong, flexible gaskets on metal flanges and housings. It resists oil, water, vibration, and thermal cycling, making it ideal for heavy-duty truck engines and industrial systems. Once cured, it remains flexible to prevent cracking under pressure. This blue RTV sealant replaces pre-cut gaskets and provides a secure, leak-free seal. Available now at Wofford Truck Parts for professional repair and maintenance needs.
Weight
0.35

Compatibility

Freightliner Cascadia (2008–2025)
Kenworth T680 (2013–2025)
Peterbilt 389 (2007–2025)
Volvo VNL (2008–2025)
Mack Anthem (2018–2025)
International LT Series (2017–2025)
Western Star 4900 (2015–2025)

Alternative Part Numbers

  • OEM: LOCTITE® SI 587
  • 3M 08731
  • AC Delco 12378521
  • CRC 05008
  • Henkel 58731
  • John Deere TY16515
  • NAPA 765-1533
  • Permatex 58730
  • TRU-SI587BLUE

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