Specifications

LOCTITE 37535 Dielectric Tune-Up Grease is a high-performance silicone-based compound engineered to insulate and protect electrical connections from moisture, dirt, and corrosive elements. Ideal for spark plug boots, battery terminals, and connectors in automotive and industrial settings, this grease prevents voltage leakage and improves electrical efficiency. It extends component life and reduces maintenance downtime for fleet and service vehicles. Compatible with most rubber and plastic materials.

Compatibility

Freightliner Cascadia (2008–2025)
Peterbilt 379 / 389 (2004–2025
Kenworth T680 / W900 (2005–2025)
Volvo VNL Series (2006–2025)
Mack Anthem / Pinnacle (2008–2025)
International LT Series (2010–2025)

Alternative Part Numbers

  • OEM: GM 12345579
  • AC Delco 88600247
  • Chrysler 4318064
  • Ford D7AZ-19A331-A
  • Motorcraft XG-3-A
  • NAPA 765-1210
  • Permatex 22058
  • Standard Motor DG-1

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