491985 LOCTITE® SI 598 Black, flexible, RTV silicone sealant

The LOCTITE® SI 598 Black RTV Silicone Sealant 491985 provides reliable sealing for metal and plastic components in high-temperature and oil-rich environments. It creates flexible gaskets that resist vibration, heat, and oil degradation. Perfect for valve covers, oil pans, and transmission housings, it’s ideal for heavy-duty trucks and industrial applications. Available from Wofford Truck Parts, this black RTV silicone is trusted by professionals for dependable sealing.

LOCTITE HENKEL CORPORATION Part No: 491985

$6.10

Specifications

LOCTITE® SI 598 Black RTV Silicone Sealant 491985 from LOCTITE HENKEL CORPORATION is a flexible, oil-resistant sealant designed for use in high-temperature automotive and industrial environments. It replaces pre-cut gaskets on valve covers, oil pans, and timing covers. The sealant resists vibration, oil, and thermal cycling while maintaining flexibility to prevent cracking or shrinkage. Ideal for heavy-duty truck maintenance, this product is available through Wofford Truck Parts for superior, long-lasting gasket performance.

Weight

0.4

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)