The TRP Loose Wheel Nut Indicator, Dustite (Part No. 1966684) is an essential component for commercial vehicle safety, designed to fit 32 mm wheel nuts. This model provides both critical visual safety monitoring and wheel nut protection.

This indicator is easily installed with its pointed ends aligned in a specific pattern. If the wheel nut loosens due to vibration or heat, the pointer will visibly move, offering an immediate visual indication of movement for pre-trip inspections and daily checks.

The Dustite design includes an integrated cap that seals the wheel nut against road grime, dust, and moisture, thereby preventing corrosion and protecting the stud threads. The Blue color provides clear visibility, and the Long Reach indicator type ensures the warning is highly visible even on multi-axle trailers or trucks with deep wheel rims.